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import os |
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import pyworld as pw |
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import math |
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import warnings |
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import logging |
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import torch |
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import torchaudio |
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import torch.nn.functional as F |
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import torch.nn.init as init |
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from torch import nn, Tensor |
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import numpy as np |
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import matplotlib.pyplot as plt |
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from typing import Optional, Dict, Union, List, Tuple, Any |
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from functools import partial |
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from datetime import datetime |
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from datasets import load_dataset, Audio |
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from transformers.trainer_seq2seq import Seq2SeqTrainer |
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from transformers.training_args_seq2seq import Seq2SeqTrainingArguments |
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import transformers |
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import evaluate |
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from dataclasses import dataclass |
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from opimizer import MaxFactor |
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torch.backends.cudnn.allow_tf32 = True |
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torch.backends.cuda.matmul.allow_tf32 = True |
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torch.set_float32_matmul_precision('high') |
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transformers.utils.logging.set_verbosity_error() |
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device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu") |
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dtype = torch.float32 |
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warnings.filterwarnings("ignore") |
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logging.basicConfig(level=logging.ERROR) |
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@dataclass |
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class Dimensions: |
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vocab: int |
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text_ctx: int |
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text_dims: int |
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text_head: int |
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text_idx: int |
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mels: int |
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aud_ctx: int |
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aud_dims: int |
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aud_head: int |
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aud_idx: int |
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act: str |
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debug: List[str] |
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cross_attn: bool |
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features: List[str] |
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def plot_waveform(x=None, w=None, p=None, per=None, sample_idx=0, sr=16000, hop_length=160, |
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title="", markers=None, marker_labels=None, |
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show_voiced_regions=True, show_energy=False): |
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num_plots = sum([x is not None, w is not None, p is not None, per is not None]) |
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if num_plots == 0: |
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raise ValueError("No data to plot. Please provide at least one input tensor.") |
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t_spans = [] |
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if w is not None: |
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w_np = w[sample_idx].detach().cpu().numpy() |
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if w_np.ndim > 1: |
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w_np = w_np.squeeze() |
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t_spans.append(len(w_np) / sr) |
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if x is not None: |
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x_np = x[sample_idx].detach().cpu().numpy() |
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if x_np.shape[0] < x_np.shape[1]: |
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x_np = x_np.T |
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t_spans.append(x_np.shape[0] * hop_length / sr) |
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if p is not None: |
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p_np = p[sample_idx].detach().cpu().numpy() |
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if p_np.ndim > 1: |
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p_np = p_np.squeeze() |
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t_spans.append(len(p_np) * hop_length / sr) |
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if per is not None: |
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per_np = per[sample_idx].detach().cpu().numpy() |
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if per_np.ndim > 1: |
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per_np = per_np.squeeze() |
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t_spans.append(len(per_np) * hop_length / sr) |
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max_t = max(t_spans) if t_spans else 0 |
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fig, axs = plt.subplots(num_plots, 1, figsize=(14, 4*num_plots), sharex=True) |
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if num_plots == 1: |
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axs = [axs] |
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if show_voiced_regions and per is not None: |
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per_np = per[sample_idx].detach().cpu().numpy() |
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if per_np.ndim > 1: |
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per_np = per_np.squeeze() |
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t_per = np.arange(len(per_np)) * hop_length / sr |
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threshold = 0.5 |
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for ax in axs: |
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for i in range(len(per_np)-1): |
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if per_np[i] > threshold: |
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ax.axvspan(t_per[i], t_per[i+1], color='lightblue', alpha=0.2, zorder=0) |
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cu_ax = 0 |
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if w is not None: |
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w_np = w[sample_idx].detach().cpu().numpy() |
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if w_np.ndim > 1: |
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w_np = w_np.squeeze() |
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t = np.arange(len(w_np)) / sr |
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axs[cu_ax].plot(t, w_np, color="tab:blue") |
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if show_energy: |
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frame_length = hop_length |
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hop_length_energy = hop_length // 2 |
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energy = [] |
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for i in range(0, len(w_np)-frame_length, hop_length_energy): |
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frame = w_np[i:i+frame_length] |
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energy.append(np.sqrt(np.mean(frame**2))) |
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energy = np.array(energy) |
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energy = energy / np.max(energy) * 0.8 * max(abs(w_np.min()), abs(w_np.max())) |
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t_energy = np.arange(len(energy)) * hop_length_energy / sr |
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axs[cu_ax].plot(t_energy, energy, color="red", alpha=0.7, label="Energy") |
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axs[cu_ax].legend(loc='upper right') |
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axs[cu_ax].set_title("Waveform") |
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axs[cu_ax].set_ylabel("Amplitude") |
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axs[cu_ax].set_xlim([0, max_t]) |
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axs[cu_ax].grid(True, axis='x', linestyle='--', alpha=0.3) |
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cu_ax += 1 |
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if x is not None: |
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x_np = x[sample_idx].detach().cpu().numpy() |
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if x_np.shape[0] < x_np.shape[1]: |
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x_np = x_np.T |
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axs[cu_ax].imshow(x_np.T, aspect="auto", origin="lower", cmap="magma", |
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extent=[0, x_np.shape[0]*hop_length/sr, 0, x_np.shape[1]]) |
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axs[cu_ax].set_title("Spectrogram") |
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axs[cu_ax].set_ylabel("Mel Bin") |
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axs[cu_ax].set_xlim([0, max_t]) |
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axs[cu_ax].grid(True, axis='x', linestyle='--', alpha=0.3) |
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cu_ax += 1 |
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if p is not None: |
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p_np = p[sample_idx].detach().cpu().numpy() |
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if p_np.ndim > 1: |
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p_np = p_np.squeeze() |
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t_p = np.arange(len(p_np)) * hop_length / sr |
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axs[cu_ax].plot(t_p, p_np, color="tab:green") |
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axs[cu_ax].set_title("Pitch") |
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axs[cu_ax].set_ylabel("Frequency (Hz)") |
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axs[cu_ax].set_xlim([0, max_t]) |
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axs[cu_ax].grid(True, axis='both', linestyle='--', alpha=0.3) |
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axs[cu_ax].set_ylim([0, min(1000, p_np.max() * 1.2)]) |
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cu_ax += 1 |
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if per is not None: |
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per_np = per[sample_idx].detach().cpu().numpy() |
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if per_np.ndim > 1: |
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per_np = per_np.squeeze() |
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t_per = np.arange(len(per_np)) * hop_length / sr |
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axs[cu_ax].plot(t_per, per_np, color="tab:red") |
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axs[cu_ax].set_title("Period (Voice Activity)") |
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axs[cu_ax].set_ylabel("periodocity") |
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axs[cu_ax].set_xlim([0, max_t]) |
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axs[cu_ax].grid(True, axis='both', linestyle='--', alpha=0.3) |
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axs[cu_ax].set_ylim([-0.05, 1.05]) |
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axs[cu_ax].axhline(y=0.5, color='k', linestyle='--', alpha=0.3) |
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if markers is not None: |
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for i, t in enumerate(markers): |
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label = marker_labels[i] if marker_labels and i < len(marker_labels) else None |
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for ax in axs: |
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ax.axvline(x=t, color='k', linestyle='-', alpha=0.7, label=label if i == 0 else None) |
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if marker_labels: |
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axs[0].legend(loc='upper right', fontsize='small') |
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axs[-1].set_xlabel("t (s)") |
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fig.suptitle(title, fontsize=16) |
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plt.tight_layout(rect=[0, 0, 1, 0.97]) |
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plt.show() |
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return fig |
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def dict_to(d, device, dtype=dtype): |
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"""Because PyTorch should have this built-in but doesn't""" |
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return {k: v.to(device, dtype) if isinstance(v, torch.Tensor) else v |
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for k, v in d.items()} |
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def exists(v): |
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return v is not None |
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def default(v, b): |
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return v if exists(v) else b |
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class Conv1d(nn.Conv1d): |
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def _conv_forward( |
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self, x: Tensor, weight: Tensor, bias) -> Tensor: |
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return super()._conv_forward(x, weight.to(x.device, x.dtype), None if bias is None else bias.to(x.device, x.dtype)) |
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class Conv2d(nn.Conv2d): |
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def _conv_forward( |
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self, x: Tensor, weight: Tensor, bias) -> Tensor: |
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return super()._conv_forward(x, weight.to(x.device, x.dtype), None if bias is None else bias.to(x.device, x.dtype)) |
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class Linear(nn.Module): |
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def __init__(self, in_features: int, out_features: int, bias: bool = True) -> None: |
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super(Linear, self).__init__() |
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self.linear = nn.Linear(in_features, out_features, bias=bias) |
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init.xavier_uniform_(self.linear.weight) |
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if bias: |
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init.zeros_(self.linear.bias) |
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def forward(self, x: Tensor) -> Tensor: |
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return self.linear(x) |
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class RMSNorm(nn.Module): |
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def __init__(self, dims: Union[int, Tensor, List, Tuple], |
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eps = 1e-8, elementwise_affine = True): |
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super(RMSNorm, self).__init__() |
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if isinstance(dims, int): |
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self.normalized_shape = (dims,) |
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else: |
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self.normalized_shape = tuple(dims) |
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self.eps = eps |
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self.elementwise_affine = elementwise_affine |
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if self.elementwise_affine: |
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self.weight = nn.Parameter(torch.empty(self.normalized_shape)) |
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init.ones_(self.weight) |
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else: |
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self.register_parameter("weight", None) |
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def forward(self, x): |
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return F.rms_norm(x, self.normalized_shape, self.weight, self.eps) |
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def LayerNorm(x: Tensor, normalized_shape: Union[int, Tensor, List, Tuple], |
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weight: Optional[Tensor] = None, bias: Optional[Tensor] = None, |
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eps: float = 1e-5) -> Tensor: |
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return F.layer_norm(x, normalized_shape, weight, bias, eps) |
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def get_device(): |
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return torch.device("cuda:0" if torch.cuda.is_available() else "cpu") |
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def get_dtype(): |
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return torch.float32 if torch.cuda.is_available() else torch.float64 |
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def tox(): |
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return {"device": get_device(), "dtype": get_dtype()} |
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def sinusoids(length, channels, max_tscale=10000): |
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assert channels % 2 == 0 |
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log_tscale_increment = np.log(max_tscale) / (channels // 2 - 1) |
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inv_tscales = torch.exp(-log_tscale_increment * torch.arange(channels // 2)) |
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scaled_t = torch.arange(length)[:, np.newaxis] * inv_tscales[np.newaxis, :] |
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return torch.cat([torch.sin(scaled_t), torch.cos(scaled_t)], dim=1) |
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class rotary(nn.Module): |
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def __init__(self, dims, head, max_ctx=1500, theta=10000, radii=True, debug: List[str] = [], use_pbias=False): |
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super(rotary, self).__init__() |
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self.use_pbias = use_pbias |
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self.dims = dims |
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self.head = head |
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self.head_dim = dims // head |
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self.radii = radii |
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self.dim = self.head_dim |
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self.debug = debug |
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self.counter = 0 |
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self.last_theta = None |
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self.bias = nn.Parameter(torch.zeros(max_ctx, dims // 2)) |
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self.theta = nn.Parameter(torch.tensor(theta, device=device, dtype=dtype), requires_grad=True) |
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def theta_freqs(self, theta): |
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freq = (theta / 220.0) * 700 * (torch.pow(10, torch.linspace(0, 2595 * torch.log10(torch.tensor(1 + 8000/700)), self.dim // 2, device=device, dtype=dtype) / 2595) - 1) / 1000 |
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freqs = nn.Parameter(torch.tensor(freq, device=device, dtype=dtype), requires_grad=True) |
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return freqs |
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def inverse_mel_scale_scalar(mel_freq: float) -> float: |
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return 700.0 * (math.exp(mel_freq / 1127.0) - 1.0) |
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def inverse_mel_scale(mel_freq: Tensor) -> Tensor: |
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return 700.0 * ((mel_freq / 1127.0).exp() - 1.0) |
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def mel_scale_scalar(freq: float) -> float: |
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return 1127.0 * math.log(1.0 + freq / 700.0) |
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def mel_scale(freq: Tensor) -> Tensor: |
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return 1127.0 * (1.0 + freq / 700.0).log() |
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def return_f0(self, f0=None): |
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if f0 is not None: |
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self.f0 = f0 |
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self.update_base(f0) |
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return f0.squeeze(0).to(device, dtype) |
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elif hasattr(self, 'f0') and self.f0 is not None: |
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return self.f0.squeeze(0).to(device, dtype) |
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return None |
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def get_pitch_bias(self, f0): |
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if f0 is None: |
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return None |
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f0_flat = f0.squeeze().float() |
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f0_norm = (f0_flat - f0_flat.mean()) / (f0_flat.std() + 1e-8) |
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f0_sim = torch.exp(-torch.cdist(f0_norm.unsqueeze(1), |
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f0_norm.unsqueeze(1))) |
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return f0_sim.unsqueeze(0).unsqueeze(0) |
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def f0proj(self, f0): |
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if f0.ndim == 3: |
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f0 = f0.squeeze(0) |
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self.f0_proj = nn.Linear(1, self.head_dim // 2, device=device, dtype=dtype) |
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f0 = f0.to(device, dtype) |
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f0 = self.f0_proj(f0.unsqueeze(-1)) |
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if f0.ndim == 3: |
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f0 = f0.squeeze(0) |
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return f0.to(device=device, dtype=dtype) |
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def align_f0(self, ctx, f0): |
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f0 = self.f0proj(f0) |
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if f0.dim() == 3: |
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batch, length, dims = f0.shape |
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if length == ctx: |
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return f0 |
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frames = length / ctx |
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idx = torch.arange(ctx, device=f0.device) |
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idx = (idx * frames).long().clamp(0, length - 1) |
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return f0[:, idx, :] |
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if f0.dim() == 1: |
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length = f0.shape[0] |
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if length == ctx: |
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return f0 |
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frames = length / ctx |
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idx = torch.arange(ctx, device=f0.device) |
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idx = (idx * frames).long().clamp(0, length - 1) |
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return f0[idx] |
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else: |
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length, dims = f0.shape |
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if length == ctx: |
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return f0 |
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frames = length / ctx |
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idx = torch.arange(ctx, device=f0.device) |
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idx = (idx * frames).long().clamp(0, length - 1) |
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return f0[idx, :] |
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def forward(self, x=None, enc=None, layer=None, feature_type="audio") -> Tensor: |
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f0 = enc.get("f0") if enc is not None else None |
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if isinstance(x, int): |
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ctx = x |
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elif isinstance(x, torch.Tensor) and x.ndim == 2: |
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batch, ctx = x.shape |
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elif isinstance(x, torch.Tensor) and x.ndim == 3: |
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batch, ctx, dims = x.shape |
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else: |
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batch, head, ctx, head_dim = x.shape |
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t = torch.arange(ctx, device=device, dtype=dtype) |
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if f0 is not None and f0.dim() == 2: |
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if f0.shape[0] == 1: |
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f0 = f0.squeeze(0) |
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else: |
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f0 = f0.view(-1) |
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if f0 is not None: |
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f0_mean = f0.mean() |
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theta = f0_mean + self.theta |
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else: |
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theta = self.theta |
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freqs = self.theta_freqs(theta) |
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freqs = t[:, None] * freqs[None, :] |
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if self.radii and f0 is not None: |
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radius = f0.to(device, dtype) |
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L = radius.shape[0] |
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if L != ctx: |
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F = L / ctx |
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idx = torch.arange(ctx, device=f0.device) |
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idx = (idx * F).long().clamp(0, L - 1) |
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radius = radius[idx] |
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freqs = torch.polar(radius.unsqueeze(-1).expand_as(freqs), freqs) |
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else: |
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freqs = torch.polar(torch.ones_like(freqs), freqs) |
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if "radius" in self.debug and self.counter % 100 == 0: |
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theta_value = theta.item() if isinstance(theta, torch.Tensor) else theta |
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print(f" [{layer}] [Radius] {radius.shape} {radius.mean():.2f} [Theta] {theta_value:.2f} [f0] {f0.shape if f0 is not None else None} [Freqs] {freqs.shape} {freqs.mean():.2f} [ctx] {ctx}") |
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if "theta" in self.debug and self.counter % 100 == 0: |
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if self.last_theta is None or abs(self.last_theta - theta.item()) > 1.0: |
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self.last_theta = theta.item() |
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print(f"[Theta] {self.last_theta:.2f}") |
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self.counter += 1 |
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return freqs.unsqueeze(0) |
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@staticmethod |
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def apply_rotary(x, freqs): |
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x1 = x[..., :freqs.shape[-1]*2] |
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x2 = x[..., freqs.shape[-1]*2:] |
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orig_shape = x1.shape |
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if x1.ndim == 2: |
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x1 = x1.unsqueeze(0) |
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x1 = x1.float().reshape(*x1.shape[:-1], -1, 2).contiguous() |
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x1 = torch.view_as_complex(x1) * freqs |
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x1 = torch.view_as_real(x1).flatten(-2) |
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x1 = x1.view(orig_shape) |
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return torch.cat([x1.type_as(x), x2], dim=-1) |
|
|
|
|
|
|
|
|
|
|
|
class MultiheadA(nn.Module): |
|
|
_seen = set() |
|
|
rbf = False |
|
|
def __init__(self, dims: int, head: int, rotary_emb: bool = True, |
|
|
zero_val: float = 1e-4, minz: float = 1e-6, maxz: float = 1e-3, debug: List[str] = [], optim_attn=False): |
|
|
super(MultiheadA, self).__init__() |
|
|
|
|
|
self.dims = dims |
|
|
self.head = head |
|
|
self.head_dim = dims // head |
|
|
self.debug = debug |
|
|
self.counter = 0 |
|
|
|
|
|
self.q = nn.Linear(dims, dims).to(device, dtype) |
|
|
self.k = nn.Linear(dims, dims, bias=False).to(device, dtype) |
|
|
self.v = nn.Linear(dims, dims).to(device, dtype) |
|
|
self.o = nn.Linear(dims, dims).to(device, dtype) |
|
|
|
|
|
self.pad_token = 0 |
|
|
self.rotary_emb = rotary_emb |
|
|
self.minz = minz |
|
|
self.maxz = maxz |
|
|
self.zero_val = zero_val |
|
|
self.optim_attn = optim_attn |
|
|
self.fzero = nn.Parameter(torch.tensor(zero_val, device=device, dtype=dtype), requires_grad=False) |
|
|
|
|
|
if rotary_emb: |
|
|
self.rope = rotary( |
|
|
dims=dims, |
|
|
head=head, |
|
|
debug=debug, |
|
|
radii=True, |
|
|
) |
|
|
else: |
|
|
self.rope = None |
|
|
|
|
|
def cos_sim(self, q: Tensor, k: Tensor, v: Tensor, mask) -> Tensor: |
|
|
q_norm = torch.nn.functional.normalize(q, dim=-1, eps=1e-12) |
|
|
k_norm = torch.nn.functional.normalize(k, dim=-1, eps=1e-12) |
|
|
qk_cosine = torch.matmul(q_norm, k_norm.transpose(-1, -2)) |
|
|
qk_cosine = qk_cosine + mask |
|
|
weights = F.softmax(qk_cosine, dim=-1) |
|
|
out = torch.matmul(weights, v) |
|
|
return out |
|
|
|
|
|
def rbf_scores(self, q, k, rbf_sigma=1.0, rbf_ratio=0.0): |
|
|
scale = (self.dims // self.head) ** -0.25 |
|
|
dot_scores = torch.matmul(q, k.transpose(-1, -2)) * scale |
|
|
if rbf_ratio <= 0.0: |
|
|
return dot_scores |
|
|
q_norm = q.pow(2).sum(dim=-1, keepdim=True) |
|
|
k_norm = k.pow(2).sum(dim=-1, keepdim=True) |
|
|
qk = torch.matmul(q, k.transpose(-1, -2)) |
|
|
dist_sq = q_norm + k_norm.transpose(-1, -2) - 2 * qk |
|
|
rbf_scores = torch.exp(-dist_sq / (2 * rbf_sigma**2)) |
|
|
return (1 - rbf_ratio) * dot_scores + rbf_ratio * rbf_scores |
|
|
|
|
|
def forward(self, x: Tensor, xa: Tensor = None, mask: Tensor = None, enc = None, layer = None, feature_type="audio", need_weights=True) -> tuple: |
|
|
|
|
|
x = x.to(device, dtype) |
|
|
if xa is not None: |
|
|
xa = xa.to(device, dtype) |
|
|
scale = (self.dims // self.head) ** -0.25 |
|
|
|
|
|
z = default(xa, x).to(device, dtype) |
|
|
q = self.q(x) |
|
|
k = self.k(z) |
|
|
v = self.v(z) |
|
|
|
|
|
if self.rotary_emb: |
|
|
q = q.view(*q.shape[:2], self.head, -1).permute(0, 2, 1, 3) |
|
|
k = k.view(*k.shape[:2], self.head, -1).permute(0, 2, 1, 3) |
|
|
v = v.view(*v.shape[:2], self.head, -1).permute(0, 2, 1, 3) |
|
|
q2 = q.shape[2] |
|
|
k2 = k.shape[2] |
|
|
|
|
|
q = self.rope.apply_rotary(q, (self.rope(q2, enc=enc, layer=layer))) |
|
|
k = self.rope.apply_rotary(k, (self.rope(k2, enc=enc, layer=layer))) |
|
|
else: |
|
|
q = q.view(*q.shape[:2], self.head, -1).permute(0, 2, 1, 3) |
|
|
k = k.view(*k.shape[:2], self.head, -1).permute(0, 2, 1, 3) |
|
|
v = v.view(*v.shape[:2], self.head, -1).permute(0, 2, 1, 3) |
|
|
batch, head, ctx, head_dim = q.shape |
|
|
|
|
|
if self.rbf: |
|
|
qk = self.rbf_scores(q * scale, k * scale, rbf_sigma=1.0, rbf_ratio=0.3) |
|
|
|
|
|
qk = (q * scale) @ (k * scale).transpose(-1, -2) |
|
|
if self.rope.use_pbias: |
|
|
f0 = enc.get("f0", None) if enc is not None else None |
|
|
pbias = self.rope.use_pbias(f0) |
|
|
if pbias is not None: |
|
|
qk = qk + pbias[:,:,:q2,:q2] |
|
|
token_ids = k[:, :, :, 0] |
|
|
zscale = torch.ones_like(token_ids) |
|
|
fzero = torch.clamp(F.softplus(self.fzero), self.minz, self.maxz) |
|
|
zscale[token_ids.float() == self.pad_token] = fzero |
|
|
|
|
|
if mask is not None: |
|
|
mask = mask[:q2, :q2] |
|
|
qk = qk + mask.unsqueeze(0).unsqueeze(0) * zscale.unsqueeze(-2).expand(qk.shape) |
|
|
qk = qk * zscale.unsqueeze(-2) |
|
|
w = F.softmax(qk, dim=-1).to(q.dtype) |
|
|
wv = (w @ v).permute(0, 2, 1, 3).flatten(start_dim=2) |
|
|
|
|
|
if "multihead" in self.debug and self.counter % 100 == 0: |
|
|
print(f"MHA: q={q.shape}, k={k.shape}, v={v.shape} - {qk.shape}, wv shape: {wv.shape}") |
|
|
self.counter += 1 |
|
|
return self.o(wv), qk |
|
|
|
|
|
|
|
|
class t_gate(nn.Module): |
|
|
def __init__(self, dims, num_types=4): |
|
|
super().__init__() |
|
|
self.gate_projections = nn.ModuleList([ |
|
|
nn.Sequential(Linear(dims, 1), nn.Sigmoid()) |
|
|
for _ in range(num_types)]) |
|
|
self.type_classifier = nn.Sequential( |
|
|
Linear(dims, num_types), |
|
|
nn.Softmax(dim=-1)) |
|
|
def forward(self, x): |
|
|
type_probs = self.type_classifier(x) |
|
|
gates = torch.stack([gate(x) for gate in self.gate_projections], dim=-1) |
|
|
comb_gate = torch.sum(gates * type_probs.unsqueeze(2), dim=-1) |
|
|
return comb_gate |
|
|
|
|
|
class m_gate(nn.Module): |
|
|
def __init__(self, dims, mem_size=64): |
|
|
super().__init__() |
|
|
self.m_key = nn.Parameter(torch.randn(mem_size, dims)) |
|
|
self.m_val = nn.Parameter(torch.randn(mem_size, 1)) |
|
|
self.gate_proj = nn.Sequential(Linear(dims, dims//2), nn.SiLU(), Linear(dims//2, 1)) |
|
|
|
|
|
def forward(self, x): |
|
|
d_gate = torch.sigmoid(self.gate_proj(x)) |
|
|
attention = torch.matmul(x, self.m_key.transpose(0, 1)) |
|
|
attention = F.softmax(attention / math.sqrt(x.shape[-1]), dim=-1) |
|
|
m_gate = torch.matmul(attention, self.m_val) |
|
|
m_gate = torch.sigmoid(m_gate) |
|
|
return 0.5 * (d_gate + m_gate) |
|
|
|
|
|
class c_gate(nn.Module): |
|
|
def __init__(self, dims): |
|
|
super().__init__() |
|
|
self.s_gate = nn.Sequential(Linear(dims, 1), nn.Sigmoid()) |
|
|
self.w_gate = nn.Sequential(Linear(dims, 1), nn.Sigmoid()) |
|
|
self.p_gate = nn.Sequential(Linear(dims, 1), nn.Sigmoid()) |
|
|
self.e_gate = nn.Sequential(Linear(dims, 1), nn.Sigmoid()) |
|
|
self.ph_gate = nn.Sequential(Linear(dims, 1), nn.Sigmoid()) |
|
|
self.integ = Linear(dims*5, dims) |
|
|
|
|
|
def forward(self, x, features): |
|
|
s_feat = features.get("spectrogram", x) |
|
|
w_feat = features.get("waveform", x) |
|
|
p_feat = features.get("pitch", x) |
|
|
e_feat = features.get("envelope", x) |
|
|
ph_feat = features.get("phase", x) |
|
|
s = self.s_gate(x) * s_feat |
|
|
w = self.w_gate(x) * w_feat |
|
|
p = self.p_gate(x) * p_feat |
|
|
e = self.e_gate(x) * e_feat |
|
|
ph = self.ph_gate(x) * ph_feat |
|
|
comb = torch.cat([s, w, p, e, ph], dim=-1) |
|
|
return self.integ(comb) |
|
|
|
|
|
class Residual(nn.Module): |
|
|
_seen = set() |
|
|
def __init__(self, ctx, dims, head, act, cross_attn=True, debug: List[str] = [], |
|
|
tgate=True, mgate=False, cgate=False, mem_size=512, features=None): |
|
|
super().__init__() |
|
|
|
|
|
self.dims = dims |
|
|
self.head = head |
|
|
self.ctx = ctx |
|
|
self.head_dim = dims // head |
|
|
self.cross_attn = cross_attn |
|
|
self.features = features |
|
|
self.debug = debug |
|
|
self.counter = 0 |
|
|
self.dropout = 0.01 |
|
|
|
|
|
self.t_gate = tgate |
|
|
self.m_gate = mgate |
|
|
self.c_gate = cgate |
|
|
self.do_blend = "no_blend" not in self.debug |
|
|
self.blend = nn.Parameter(torch.tensor(0.5)) |
|
|
self.skip_gates = True if "skip_gates" in self.debug else False |
|
|
|
|
|
act_map = {"gelu": nn.GELU(), "relu": nn.ReLU(), "sigmoid": nn.Sigmoid(), |
|
|
"tanh": nn.Tanh(), "swish": nn.SiLU(), "tanhshrink": nn.Tanhshrink(), |
|
|
"softplus": nn.Softplus(), "softshrink": nn.Softshrink(), |
|
|
"leaky_relu": nn.LeakyReLU(), "elu": nn.ELU()} |
|
|
act_fn = act_map.get(act, nn.GELU()) |
|
|
|
|
|
self.attna = MultiheadA(dims, head, rotary_emb=True, debug=debug) |
|
|
self.attnb = (MultiheadA(dims, head, rotary_emb=True, debug=debug) if cross_attn else None) |
|
|
|
|
|
mlp = dims * 4 |
|
|
self.mlp = nn.Sequential(Linear(dims, mlp), act_fn, Linear(mlp, dims)) |
|
|
|
|
|
self.t_gate = t_gate(dims=dims, num_types=4) if t_gate else None |
|
|
self.m_gate = m_gate(dims=dims, mem_size=mem_size) if m_gate else None |
|
|
self.c_gate = c_gate(dims=dims) if cgate else None |
|
|
|
|
|
self.lna = RMSNorm(dims) |
|
|
self.lnb = RMSNorm(dims) if cross_attn else None |
|
|
self.lnc = RMSNorm(dims) |
|
|
|
|
|
if not any([t_gate, m_gate, c_gate]): |
|
|
self.mlp_gate = nn.Sequential(Linear(dims, 1), nn.Sigmoid()) |
|
|
|
|
|
def forward(self, x, xa=None, mask=None, enc=None, layer=None, feature_type="audio") -> Tensor: |
|
|
|
|
|
x = x + self.attna(self.lna(x), xa=None, mask=mask, enc=enc, layer=layer)[0] |
|
|
xb = x |
|
|
if self.attnb and xa is not None: |
|
|
x = x + self.attnb(self.lnb(x), xa=xa, mask=None, enc=enc, layer=layer)[0] |
|
|
|
|
|
if self.do_blend: |
|
|
b = torch.sigmoid(self.blend) |
|
|
x = b * xb + (1 - b) * x |
|
|
|
|
|
if self.skip_gates: |
|
|
x = x + self.mlp(self.lnc(x)) |
|
|
else: |
|
|
normx = self.lnc(x) |
|
|
mlp_out = self.mlp(normx) |
|
|
|
|
|
if self.t_gate: |
|
|
gate = self.t_gate(normx) |
|
|
x = x + gate * mlp_out |
|
|
|
|
|
elif self.m_gate: |
|
|
gate = self.m_gate(normx) |
|
|
x = x + gate * mlp_out |
|
|
|
|
|
elif self.c_gate: |
|
|
gate_output = self.c_gate(normx, self.features) |
|
|
x = x + gate_output |
|
|
|
|
|
else: |
|
|
if hasattr(self, 'mlp_gate'): |
|
|
mlp_gate = self.mlp_gate(normx) |
|
|
x = x + mlp_gate * mlp_out |
|
|
else: |
|
|
x = x + mlp_out |
|
|
|
|
|
if "residual" in self.debug and self.counter % 100 == 0: |
|
|
print(f"Step {self.counter}: Residual block output shape: {x.shape}, xa shape: {xa.shape if xa is not None else None}") |
|
|
if self.t_gate: |
|
|
print(f"Step {self.counter}: Using t_gate: {self.t_gate}") |
|
|
elif self.m_gate: |
|
|
print(f"Step {self.counter}: Using m_gate: {self.m_gate}") |
|
|
elif self.c_gate: |
|
|
print(f"Step {self.counter}: Using c_gate: {self.c_gate}") |
|
|
else: |
|
|
print(f"Step {self.counter}: Using MLP gate: {self.mlp_gate if hasattr(self, 'mlp_gate') else None}") |
|
|
self.counter += 1 |
|
|
return x |
|
|
|
|
|
class FEncoder(nn.Module): |
|
|
def __init__(self, input_dims, dims, head, layer, kernel_size, act, stride=1, use_rope=False, spec_shape=None): |
|
|
super().__init__() |
|
|
|
|
|
self.head = head |
|
|
self.head_dim = dims // head |
|
|
self.dropout = 0.01 |
|
|
self.use_rope = use_rope |
|
|
self.dims = dims |
|
|
|
|
|
act_map = {"gelu": nn.GELU(), "relu": nn.ReLU(), "sigmoid": nn.Sigmoid(), "tanh": nn.Tanh(), "swish": nn.SiLU(), "tanhshrink": nn.Tanhshrink(), "softplus": nn.Softplus(), "softshrink": nn.Softshrink(), "leaky_relu": nn.LeakyReLU(), "elu": nn.ELU()} |
|
|
act_fn = act_map.get(act, nn.GELU()) |
|
|
|
|
|
self.encoder = nn.Sequential( |
|
|
Conv1d(input_dims, dims, kernel_size=kernel_size, stride=stride, padding=kernel_size//2), act_fn, |
|
|
Conv1d(dims, dims, kernel_size=5, padding=2), act_fn, |
|
|
Conv1d(dims, dims, kernel_size=3, padding=1, groups=dims), act_fn) |
|
|
|
|
|
if use_rope: |
|
|
if spec_shape is not None: |
|
|
self.rope = rotary( |
|
|
dims=self.head_dim, |
|
|
use_2d_axial=True, |
|
|
spec_shape=spec_shape, debug=[]) |
|
|
else: |
|
|
self.rope = rotary( |
|
|
dims=self.head_dim, |
|
|
use_2d_axial=False, debug=[]) |
|
|
else: |
|
|
self.rope = None |
|
|
self.positional = lambda length: sinusoids(length, dims) |
|
|
|
|
|
self.norm = RMSNorm(dims) |
|
|
self._norm = RMSNorm(dims) |
|
|
|
|
|
def apply_rope_to_features(self, x, layer=None, feature_type="audio"): |
|
|
if feature_type in ["envelope", "phase"]: |
|
|
feature_type = "spectrogram" |
|
|
batch, ctx, dims = x.shape |
|
|
x = x.view(batch, ctx, self.head, self.head_dim).permute(0, 2, 1, 3) |
|
|
if feature_type == "spectrogram" and hasattr(self.rope, 'use_2d_axial') and self.rope.use_2d_axial: |
|
|
rope_freqs = self.rope(ctx, layer=layer, input_type="spectrogram") |
|
|
else: |
|
|
rope_freqs = self.rope(ctx, layer=layer, input_type="audio") |
|
|
x = self.rope.apply_rotary(x, rope_freqs) |
|
|
x = x.permute(0, 2, 1, 3).contiguous().view(batch, ctx, dims) |
|
|
return x |
|
|
|
|
|
def forward(self, x, enc=None, layer=None, feature_type="audio"): |
|
|
x = self.encoder(x).permute(0, 2, 1) |
|
|
if self.use_rope: |
|
|
x = self.apply_rope_to_features(x, layer=layer, feature_type=feature_type) |
|
|
else: |
|
|
x = x + self.positional(x.shape[1]).to(x.device, x.dtype) |
|
|
x = nn.functional.dropout(x, p=self.dropout, training=self.training) |
|
|
x = self._norm(x) |
|
|
return x |
|
|
|
|
|
class WEncoder(nn.Module): |
|
|
def __init__(self, input_dims, dims, head, layer, kernel_size, act, use_rope=False): |
|
|
super().__init__() |
|
|
|
|
|
self.head = head |
|
|
self.head_dim = dims // head |
|
|
self.dropout = 0.01 |
|
|
self.use_rope = use_rope |
|
|
self.dims = dims |
|
|
|
|
|
act_map = {"gelu": nn.GELU(), "relu": nn.ReLU(), "sigmoid": nn.Sigmoid(), "tanh": nn.Tanh(), "swish": nn.SiLU(), "tanhshrink": nn.Tanhshrink(), "softplus": nn.Softplus(), "softshrink": nn.Softshrink(), "leaky_relu": nn.LeakyReLU(), "elu": nn.ELU()} |
|
|
act_fn = act_map.get(act, nn.GELU()) |
|
|
|
|
|
self.downsample = nn.Sequential( |
|
|
Conv1d(input_dims, dims//8, kernel_size=15, stride=8, padding=7), act_fn, |
|
|
Conv1d(dims//8, dims//4, kernel_size=7, stride=4, padding=3), act_fn, |
|
|
Conv1d(dims//4, dims, kernel_size=9, stride=5, padding=4), act_fn) |
|
|
|
|
|
self.encoder = nn.Sequential( |
|
|
Conv1d(dims, dims, kernel_size=3, padding=1, groups=dims//8), act_fn, |
|
|
Conv1d(dims, dims, kernel_size=1), act_fn) |
|
|
if use_rope: |
|
|
self.rope = rotary( |
|
|
dims=self.head_dim, |
|
|
use_2d_axial=False, |
|
|
theta=50.0, debug=[]) |
|
|
else: |
|
|
self.rope = None |
|
|
self.positional = lambda length: sinusoids(length, dims) |
|
|
self.norm = RMSNorm(dims) |
|
|
|
|
|
def apply_rope_to_features(self, x, layer=None): |
|
|
if not self.use_rope or self.rope is None: |
|
|
return x |
|
|
batch, ctx, dims = x.shape |
|
|
x = x.view(batch, ctx, self.head, self.head_dim).permute(0, 2, 1, 3) |
|
|
rope_freqs = self.rope(ctx, layer=layer, input_type="waveform") |
|
|
x = self.rope.apply_rotary(x, rope_freqs) |
|
|
x = x.permute(0, 2, 1, 3).contiguous().view(batch, ctx, dims) |
|
|
return x |
|
|
|
|
|
def forward(self, x, enc=None, layer=None, feature_type="waveform"): |
|
|
x = self.downsample(x) |
|
|
x = self.encoder(x) |
|
|
x = x.permute(0, 2, 1) |
|
|
if self.use_rope: |
|
|
x = self.apply_rope_to_features(x, layer=layer) |
|
|
else: |
|
|
x = x + self.positional(x.shape[1]).to(x.device, x.dtype) |
|
|
x = nn.functional.dropout(x, p=self.dropout, training=self.training) |
|
|
return self.norm(x) |
|
|
|
|
|
class PEncoder(nn.Module): |
|
|
def __init__(self, input_dims, dims, head, layer, kernel_size, act, use_rope=False): |
|
|
super().__init__() |
|
|
|
|
|
self.head = head |
|
|
self.head_dim = dims // head |
|
|
self.dropout = 0.01 |
|
|
self.use_rope = use_rope |
|
|
self.dims = dims |
|
|
|
|
|
act_map = {"gelu": nn.GELU(), "relu": nn.ReLU(), "sigmoid": nn.Sigmoid(), "tanh": nn.Tanh(), "swish": nn.SiLU(), "tanhshrink": nn.Tanhshrink(), "softplus": nn.Softplus(), "softshrink": nn.Softshrink(), "leaky_relu": nn.LeakyReLU(), "elu": nn.ELU()} |
|
|
act_fn = act_map.get(act, nn.GELU()) |
|
|
|
|
|
self.encoder = nn.Sequential( |
|
|
Conv1d(input_dims, dims//4, kernel_size=7, stride=8, padding=3), act_fn, |
|
|
Conv1d(dims//4, dims//2, kernel_size=5, stride=4, padding=2), act_fn, |
|
|
Conv1d(dims//2, dims, kernel_size=5, stride=5, padding=2), act_fn) |
|
|
|
|
|
if use_rope: |
|
|
self.rope = rotary( |
|
|
dims=self.head_dim, |
|
|
use_2d_axial=False, |
|
|
theta=100.0, debug=[]) |
|
|
else: |
|
|
self.rope = None |
|
|
self.positional = lambda length: sinusoids(length, dims) |
|
|
self.norm = RMSNorm(dims) |
|
|
|
|
|
def apply_rope_to_features(self, x, layer=None): |
|
|
if not self.use_rope or self.rope is None: |
|
|
return x |
|
|
batch, ctx, dims = x.shape |
|
|
x = x.view(batch, ctx, self.head, self.head_dim).permute(0, 2, 1, 3) |
|
|
rope_freqs = self.rope(ctx, layer=layer, input_type="pitch") |
|
|
x = self.rope.apply_rotary(x, rope_freqs) |
|
|
x = x.permute(0, 2, 1, 3).contiguous().view(batch, ctx, dims) |
|
|
return x |
|
|
|
|
|
def forward(self, x, enc=None, layer=None, feature_type="pitch"): |
|
|
x = self.encoder(x).permute(0, 2, 1) |
|
|
if self.use_rope: |
|
|
x = self.apply_rope_to_features(x, layer=layer) |
|
|
else: |
|
|
x = x + self.positional(x.shape[1]).to(x.device, x.dtype) |
|
|
x = nn.functional.dropout(x, p=self.dropout, training=self.training) |
|
|
x = self.norm(x) |
|
|
return x |
|
|
|
|
|
class AudioEncoder(nn.Module): |
|
|
_seen = set() |
|
|
def __init__(self, mels: int, ctx: int, dims: int, head: int, layer: int, debug: List[str], features: List[str], act: str = "gelu"): |
|
|
super(AudioEncoder, self).__init__() |
|
|
|
|
|
self.dims = dims |
|
|
self.head = head |
|
|
self.ctx = ctx |
|
|
self.head_dim = dims // head |
|
|
self.debug = debug |
|
|
self.counter = 0 |
|
|
self.features = features |
|
|
self.dropout = 0.01 |
|
|
|
|
|
act_map = {"gelu": nn.GELU(), "relu": nn.ReLU(), "sigmoid": nn.Sigmoid(), "tanh": nn.Tanh(), "swish": nn.SiLU(),"tanhshrink": nn.Tanhshrink(), "softplus": nn.Softplus(), "softshrink": nn.Softshrink(), "leaky_relu": nn.LeakyReLU(), "elu": nn.ELU()} |
|
|
act_fn = act_map.get(act, nn.GELU()) |
|
|
|
|
|
if features == ["spectrogram", "waveform", "pitch"]: |
|
|
cgate=True |
|
|
else: |
|
|
cgate = False |
|
|
|
|
|
self.blocks = nn.ModuleDict({ |
|
|
|
|
|
"spectrogram": nn.ModuleList( |
|
|
[FEncoder(input_dims=mels, dims=dims, head=head, layer=layer, kernel_size=3, act=act_fn)] + |
|
|
[Residual(ctx=ctx, dims=dims, head=head, act=act, debug=debug, features=features, cgate=cgate) for _ in range(layer)] |
|
|
if "spectrogram" in features else None), |
|
|
|
|
|
"waveform": nn.ModuleList( |
|
|
[WEncoder(input_dims=1, dims=dims, head=head, layer=layer, kernel_size=11, act=act_fn)] + |
|
|
[Residual(ctx=ctx, dims=dims, head=head, act=act, debug=debug, features=features, cgate=cgate) for _ in range(layer)] |
|
|
if "waveform" in features else None), |
|
|
|
|
|
"pitch": nn.ModuleList( |
|
|
[FEncoder(input_dims=1, dims=dims, head=head, layer=layer, kernel_size=9, act=act, stride=2)] + |
|
|
[Residual(ctx=ctx, dims=dims, head=head, act=act, debug=debug, features=features, cgate=cgate) for _ in range(layer)] |
|
|
if "pitch" in features else None), |
|
|
|
|
|
"envelope": nn.ModuleList( |
|
|
[FEncoder(input_dims=mels, dims=dims, head=head, layer=layer, kernel_size=3, act=act_fn)] + |
|
|
[Residual(ctx=ctx, dims=dims, head=head, act=act, debug=debug, features=features, cgate=cgate) for _ in range(layer)] |
|
|
if "envelope" in features else None), |
|
|
|
|
|
"phase": nn.ModuleList( |
|
|
[FEncoder(input_dims=mels, dims=dims, head=head, layer=layer, kernel_size=3, act=act_fn)] + |
|
|
[Residual(ctx=ctx, dims=dims, head=head, act=act, debug=debug, features=features, cgate=cgate) for _ in range(layer)] |
|
|
if "phase" in features else None), |
|
|
}) |
|
|
|
|
|
def forward(self, enc, layer="encoder"): |
|
|
enc = dict_to(enc, device, dtype) |
|
|
out = {} |
|
|
out.update(enc) |
|
|
|
|
|
for f in self.features: |
|
|
if f in enc and f in self.blocks: |
|
|
x = enc[f] |
|
|
for block in self.blocks[f]: |
|
|
x = block(x, enc=enc, layer=layer) |
|
|
out[f] = x |
|
|
|
|
|
if self.counter < 1 and "encoder" in self.debug: |
|
|
s = enc.get("spectrogram") |
|
|
w = enc.get("waveform") |
|
|
p = default(enc.get("pitch"), enc.get("f0")) |
|
|
plot_waveform(x=s, w=w, p=p, hop_length=128) |
|
|
shapes = {k: v.shape for k, v in enc.items()} |
|
|
print(f"Step {self.counter}: mode: {list(enc.keys()) }: shapes: {shapes}") |
|
|
self.counter += 1 |
|
|
return out |
|
|
|
|
|
|
|
|
class TextDecoder(nn.Module): |
|
|
def __init__(self, vocab: int, ctx: int, dims: int, head: int, layer: int, cross_attn: bool, |
|
|
debug: List[str], features: List[str]): |
|
|
super(TextDecoder, self).__init__() |
|
|
|
|
|
self.ctx = ctx |
|
|
self.dims = dims |
|
|
self.head = head |
|
|
self.head_dim = dims // head |
|
|
self.debug = debug |
|
|
self.counter = 0 |
|
|
self.dropout = 0.01 |
|
|
self.features = features |
|
|
self.do_blend = "no_blend" not in self.debug |
|
|
self.sequential = False |
|
|
|
|
|
self.token = nn.Embedding(num_embeddings=vocab, embedding_dim=dims) |
|
|
with torch.no_grad(): |
|
|
self.token.weight[0].zero_() |
|
|
self.positional = nn.Parameter(data=torch.empty(ctx, dims), requires_grad=True) |
|
|
|
|
|
self.block = nn.ModuleList([ |
|
|
Residual(ctx=ctx, dims=dims, head=head, act="gelu", cross_attn=cross_attn, debug=debug, features=features) |
|
|
for _ in range(layer)]) |
|
|
|
|
|
self.blocks = nn.ModuleDict({ |
|
|
f: nn.ModuleList([Residual(ctx=ctx, dims=dims, head=head, act="gelu", cross_attn=cross_attn, debug=debug, features=features) |
|
|
for _ in range(layer)]) for f in features}) |
|
|
|
|
|
self.blend = nn.ParameterDict({f: nn.Parameter(torch.tensor(0.5)) for f in features}) |
|
|
self.ln_dec = RMSNorm(dims) |
|
|
|
|
|
mask = torch.tril(torch.ones(ctx, ctx), diagonal=0) |
|
|
self.register_buffer("mask", mask, persistent=False) |
|
|
|
|
|
def forward(self, x, enc, order=None, layer='decoder') -> Tensor: |
|
|
|
|
|
if order is None: |
|
|
order = self.features |
|
|
|
|
|
mask = self.mask[:x.shape[1], :x.shape[1]] |
|
|
x = self.token(x) + self.positional[:x.shape[1]] |
|
|
x = F.dropout(x, p=self.dropout, training=self.training) |
|
|
|
|
|
|
|
|
for block in self.block: |
|
|
x = block(x, xa=None, mask=mask, enc=None, layer=layer) |
|
|
|
|
|
for f in order: |
|
|
if f in enc: |
|
|
xa = enc[f] |
|
|
for block in self.blocks[f]: |
|
|
out = block(x=x, xa=xa, mask=None, enc=None, layer=layer) |
|
|
|
|
|
if self.sequential: |
|
|
x = out |
|
|
else: |
|
|
a = torch.sigmoid(self.blend[f]) |
|
|
x = a * out + (1 - a) * x |
|
|
|
|
|
if self.counter < 1 and "decoder" in self.debug: |
|
|
shapes = {k: v.shape for k, v in enc.items()} |
|
|
print(f"Step {self.counter}: Decoder output shape: {x.shape}, enc keys: {list(enc.keys())}, order: {order}: shapes: {shapes}") |
|
|
self.counter += 1 |
|
|
|
|
|
x = self.ln_dec(x) |
|
|
return x @ torch.transpose(self.token.weight.to(dtype), 0, 1).float() |
|
|
|
|
|
|
|
|
class Echo(nn.Module): |
|
|
def __init__(self, param: Dimensions): |
|
|
super().__init__() |
|
|
self.param = param |
|
|
|
|
|
self.encoder = AudioEncoder( |
|
|
mels=param.mels, |
|
|
ctx=param.aud_ctx, |
|
|
dims=param.aud_dims, |
|
|
head=param.aud_head, |
|
|
layer=param.aud_idx, |
|
|
act=param.act, |
|
|
debug=param.debug, |
|
|
features=param.features, |
|
|
) |
|
|
|
|
|
self.decoder = TextDecoder( |
|
|
vocab=param.vocab, |
|
|
ctx=param.text_ctx, |
|
|
dims=param.text_dims, |
|
|
head=param.text_head, |
|
|
layer=param.text_idx, |
|
|
cross_attn=param.cross_attn, |
|
|
debug=param.debug, |
|
|
features=param.features, |
|
|
) |
|
|
|
|
|
def forward(self, |
|
|
decoder_input_ids=None, |
|
|
labels=None, |
|
|
waveform: Optional[torch.Tensor]=None, |
|
|
input_ids=None, |
|
|
spectrogram: torch.Tensor=None, |
|
|
pitch: Optional[torch.Tensor]=None, |
|
|
f0: Optional[torch.Tensor]=None, |
|
|
f0d: Optional[torch.Tensor]=None, |
|
|
envelope: Optional[torch.Tensor]=None, |
|
|
phase: Optional[torch.Tensor]=None, |
|
|
) -> Dict[str, torch.Tensor]: |
|
|
|
|
|
encoder_inputs = {} |
|
|
if spectrogram is not None: |
|
|
encoder_inputs["spectrogram"] = spectrogram |
|
|
if waveform is not None: |
|
|
encoder_inputs["waveform"] = waveform |
|
|
if pitch is not None: |
|
|
encoder_inputs["pitch"] = pitch |
|
|
if envelope is not None: |
|
|
encoder_inputs["envelope"] = envelope |
|
|
if phase is not None: |
|
|
encoder_inputs["phase"] = phase |
|
|
if f0 is not None: |
|
|
encoder_inputs["f0"] = f0 |
|
|
|
|
|
encoder_outputs = self.encoder(encoder_inputs) |
|
|
logits = self.decoder(input_ids, encoder_outputs) |
|
|
|
|
|
loss = None |
|
|
if labels is not None: |
|
|
loss = F.cross_entropy( |
|
|
logits.view(-1, logits.shape[-1]), labels.view(-1), ignore_index=0) |
|
|
|
|
|
return {"logits": logits, "loss": loss} |
|
|
|
|
|
@property |
|
|
def device(self): |
|
|
return next(self.parameters()).device |
|
|
@property |
|
|
def dtype(self): |
|
|
return next(self.parameters()).dtype |
|
|
|
|
|
def _init_weights(self, module): |
|
|
std = 0.02 |
|
|
self.init_counts = { |
|
|
"Linear": 0, "Conv1d": 0, "LayerNorm": 0, "RMSNorm": 0, |
|
|
"Conv2d": 0, "SEBlock": 0, "TextDecoder": 0, "AudioEncoder": 0, |
|
|
"Residual": 0, "MultiheadA": 0, "MultiheadB - Cross Attention": 0, |
|
|
"MultiheadC": 0, "MultiheadD": 0, "FEncoder": 0, |
|
|
"WEncoder": 0, "PEncoder": 0} |
|
|
|
|
|
for name, module in self.named_modules(): |
|
|
if isinstance(module, RMSNorm): |
|
|
nn.init.ones_(module.weight) |
|
|
self.init_counts["RMSNorm"] += 1 |
|
|
elif isinstance(module, nn.Linear): |
|
|
if module.weight is not None: |
|
|
nn.init.xavier_uniform_(module.weight) |
|
|
if module.bias is not None: |
|
|
nn.init.zeros_(module.bias) |
|
|
self.init_counts["Linear"] += 1 |
|
|
elif isinstance(module, Conv1d): |
|
|
nn.init.normal_(module.weight, mean=0.0, std=std) |
|
|
if module.bias is not None: |
|
|
nn.init.zeros_(module.bias) |
|
|
self.init_counts["Conv1d"] += 1 |
|
|
elif isinstance(module, Conv2d): |
|
|
nn.init.normal_(module.weight, mean=0.0, std=std) |
|
|
if module.bias is not None: |
|
|
nn.init.zeros_(module.bias) |
|
|
self.init_counts["Conv2d"] += 1 |
|
|
elif isinstance(module, MultiheadA): |
|
|
|
|
|
self.init_counts["MultiheadA"] += 1 |
|
|
elif isinstance(module, TextDecoder): |
|
|
self.init_counts["TextDecoder"] += 1 |
|
|
elif isinstance(module, AudioEncoder): |
|
|
self.init_counts["AudioEncoder"] += 1 |
|
|
elif isinstance(module, Residual): |
|
|
self.init_counts["Residual"] += 1 |
|
|
|
|
|
def init_weights(self): |
|
|
print("Initializing model weights...") |
|
|
self.apply(self._init_weights) |
|
|
print("Initialization summary:") |
|
|
for module_type, count in self.init_counts.items(): |
|
|
if count > 0: |
|
|
print(f"{module_type}: {count}") |
|
|
|
|
|
metric = evaluate.load(path="wer") |
|
|
|
|
|
@dataclass |
|
|
class DataCollator: |
|
|
tokenizer: Any |
|
|
|
|
|
def __call__(self, features: List[Dict[str, torch.Tensor]]) -> Dict[str, torch.Tensor]: |
|
|
all_keys = set() |
|
|
for f in features: |
|
|
all_keys.update(f.keys()) |
|
|
batch = {} |
|
|
pad_token_id = getattr(self.tokenizer, 'pad_token_id', 0) |
|
|
bos_token_id = getattr(self.tokenizer, 'bos_token_id', 1) |
|
|
eos_token_id = getattr(self.tokenizer, 'eos_token_id', 2) |
|
|
|
|
|
for key in all_keys: |
|
|
if key == "label": |
|
|
labels_list = [f["label"] for f in features] |
|
|
max_len = max(len(l) for l in labels_list) |
|
|
all_ids, all_labels = [], [] |
|
|
for label in labels_list: |
|
|
label_list = label.tolist() if isinstance(label, torch.Tensor) else label |
|
|
decoder_input = [bos_token_id] + label_list |
|
|
label_eos = label_list + [eos_token_id] |
|
|
input_len = max_len + 1 - len(decoder_input) |
|
|
label_len = max_len + 1 - len(label_eos) |
|
|
padded_input = decoder_input + [pad_token_id] * input_len |
|
|
padded_labels = label_eos + [pad_token_id] * label_len |
|
|
all_ids.append(padded_input) |
|
|
all_labels.append(padded_labels) |
|
|
batch["input_ids"] = torch.tensor(all_ids, dtype=torch.long) |
|
|
batch["labels"] = torch.tensor(all_labels, dtype=torch.long) |
|
|
elif key in ["spectrogram", "waveform", "pitch", "f0", "env", "phase"]: |
|
|
items = [f[key] for f in features if key in f] |
|
|
max_len = max(item.shape[-1] for item in items) |
|
|
padded = [] |
|
|
for item in items: |
|
|
pad_width = max_len - item.shape[-1] |
|
|
if pad_width > 0: |
|
|
pad_item = F.pad(item, (0, pad_width), mode='constant', value=pad_token_id) |
|
|
else: |
|
|
pad_item = item |
|
|
padded.append(pad_item) |
|
|
batch[key] = torch.stack(padded) |
|
|
if key == "spectrogram": |
|
|
batch["spectrogram"] = batch[key] |
|
|
return batch |
|
|
|
|
|
def hilbert_transform(x): |
|
|
N = x.shape[-1] |
|
|
xf = torch.fft.rfft(x) |
|
|
h = torch.zeros(N // 2 + 1, device=x.device, dtype=x.dtype) |
|
|
if N % 2 == 0: |
|
|
h[0] = h[N//2] = 1 |
|
|
h[1:N//2] = 2 |
|
|
else: |
|
|
h[0] = 1 |
|
|
h[1:(N+1)//2] = 2 |
|
|
return torch.fft.irfft(xf * h, n=N) |
|
|
|
|
|
def analytic_signal(x): |
|
|
return x + 1j * hilbert_transform(x) |
|
|
|
|
|
def hilbert_transform_2d(x, dim=-1): |
|
|
N = x.shape[dim] |
|
|
if dim == -1 or dim == len(x.shape) - 1: |
|
|
xf = torch.fft.rfft(x) |
|
|
else: |
|
|
xf = torch.fft.rfft(x, dim=dim) |
|
|
h_shape = [1] * len(x.shape) |
|
|
h_shape[dim] = N // 2 + 1 |
|
|
h = torch.zeros(h_shape, device=x.device, dtype=x.dtype) |
|
|
if dim == -1 or dim == len(x.shape) - 1: |
|
|
if N % 2 == 0: |
|
|
h[..., 0] = h[..., -1] = 1 |
|
|
h[..., 1:-1] = 2 |
|
|
else: |
|
|
h[..., 0] = 1 |
|
|
h[..., 1:] = 2 |
|
|
else: |
|
|
pass |
|
|
return torch.fft.irfft(xf * h, n=N, dim=dim) |
|
|
|
|
|
def hilbert_transform_true_2d(x): |
|
|
xf = torch.fft.rfft2(x) |
|
|
h1, h2 = torch.meshgrid( |
|
|
torch.fft.rfftfreq(x.shape[-2]) * 2 - 1, |
|
|
torch.fft.rfftfreq(x.shape[-1]) * 2 - 1, |
|
|
indexing='ij') |
|
|
h = -1j / (math.pi * (h1 + 1j*h2)) |
|
|
h[0, 0] = 0 |
|
|
return torch.fft.irfft2(xf * h.to(x.device)) |
|
|
|
|
|
def process_spectrogram_with_hilbert(spec): |
|
|
analytic = spec + 1j * hilbert_transform(spec) |
|
|
envelope = torch.abs(analytic) |
|
|
phase = torch.angle(analytic) |
|
|
return envelope, phase |
|
|
|
|
|
def load_wave(wave_data, sample_rate): |
|
|
if isinstance(wave_data, str): |
|
|
waveform, sr = torchaudio.load(uri=wave_data, normalize=False) |
|
|
elif isinstance(wave_data, dict): |
|
|
waveform = torch.tensor(data=wave_data["array"]).float() |
|
|
sr = wave_data["sampling_rate"] |
|
|
else: |
|
|
raise TypeError("Invalid wave_data format.") |
|
|
|
|
|
if waveform.dim() == 1: |
|
|
waveform = waveform.unsqueeze(0) |
|
|
|
|
|
if sr != sample_rate: |
|
|
original_length = waveform.shape[1] |
|
|
target_length = int(original_length * (sample_rate / sr)) |
|
|
|
|
|
resampler = torchaudio.transforms.Resample(orig_freq=sr, new_freq=sample_rate) |
|
|
waveform = resampler(waveform) |
|
|
|
|
|
return waveform.flatten() |
|
|
|
|
|
def extract_features(batch, tokenizer, spectrogram, waveforms, pitch, frequency=False, |
|
|
hop_length=128, fmin=0, fmax=8000, n_mels=128, n_fft=1024, sampling_rate=16000, |
|
|
pad_mode="constant", center=True, power=2.0, window_fn=torch.hann_window, mel_scale="htk", |
|
|
norm=None, normalized=False, downsamples=False, period=False, hilbert=False): |
|
|
|
|
|
audio = batch["audio"] |
|
|
sampling_rate = audio["sampling_rate"] |
|
|
sr = audio["sampling_rate"] |
|
|
wav = load_wave(wave_data=audio, sample_rate=sr) |
|
|
|
|
|
if spectrogram: |
|
|
transform = torchaudio.transforms.MelSpectrogram( |
|
|
f_max=fmax, |
|
|
f_min=fmin, |
|
|
n_mels=n_mels, |
|
|
sample_rate=sr, |
|
|
n_fft=n_fft, |
|
|
hop_length=hop_length, |
|
|
norm=norm, |
|
|
normalized=normalized, |
|
|
power=power, |
|
|
center=center, |
|
|
mel_scale=mel_scale, |
|
|
window_fn=window_fn, |
|
|
pad_mode=pad_mode) |
|
|
|
|
|
mel_spectrogram = transform(wav) |
|
|
log_mel = torch.clamp(mel_spectrogram, min=1e-10).log10() |
|
|
log_mel = torch.maximum(log_mel, log_mel.max() - 8.0) |
|
|
spec = (log_mel + 4.0) / 4.0 |
|
|
spec = torch.tensor(spec) |
|
|
batch["spectrogram"] = spec |
|
|
|
|
|
if hilbert: |
|
|
envelope_list = [] |
|
|
phase_list = [] |
|
|
|
|
|
for ch_idx in range(spec.shape[0]): |
|
|
envelope, phase = process_spectrogram_with_hilbert(spec[ch_idx]) |
|
|
envelope_list.append(envelope) |
|
|
phase_list.append(phase) |
|
|
|
|
|
batch["envelope"] = torch.stack(envelope_list) |
|
|
batch["phase"] = torch.stack(phase_list) |
|
|
|
|
|
wav_1d = wav.unsqueeze(0) |
|
|
|
|
|
if waveforms: |
|
|
batch["waveform"] = wav_1d |
|
|
|
|
|
if pitch: |
|
|
wav_np = wav.numpy().astype(np.float64) |
|
|
f0, t = pw.dio(wav_np, sampling_rate, |
|
|
frame_period=hop_length/sampling_rate*1000) |
|
|
f0 = pw.stonemask(wav_np, f0, t, sampling_rate) |
|
|
f0 = torch.from_numpy(f0) |
|
|
batch["pitch"] = f0.unsqueeze(0) |
|
|
|
|
|
if frequency: |
|
|
wav_np = wav.numpy().astype(np.float64) |
|
|
f0, t = pw.dio(wav_np, sampling_rate, frame_period=hop_length/sampling_rate*1000) |
|
|
f0 = pw.stonemask(wav_np, f0, t, sampling_rate) |
|
|
f0 = torch.from_numpy(f0) |
|
|
batch["f0"] = f0 |
|
|
|
|
|
if spectrogram and waveforms and pitch: |
|
|
spec_mean = batch["spectrogram"].mean() |
|
|
spec_std = batch["spectrogram"].std() + 1e-6 |
|
|
batch["spectrogram"] = (batch["spectrogram"] - spec_mean) / spec_std |
|
|
|
|
|
wav_mean = batch["waveform"].mean() |
|
|
wav_std = batch["waveform"].std() + 1e-6 |
|
|
batch["waveform"] = (batch["waveform"] - wav_mean) / wav_std |
|
|
|
|
|
if batch["pitch"].max() > 1.0: |
|
|
pitch_min = 50.0 |
|
|
pitch_max = 500.0 |
|
|
batch["pitch"] = (batch["pitch"] - pitch_min) / (pitch_max - pitch_min) |
|
|
|
|
|
batch["label"] = tokenizer.encode(batch["transcription"], add_special_tokens=False) |
|
|
return batch |
|
|
|
|
|
def compute_metrics(pred, compute_result: bool = True, print_pred: bool = False, num_samples: int = 0, tokenizer = None, model = None): |
|
|
|
|
|
pred_ids = pred.predictions |
|
|
label_ids = pred.label_ids |
|
|
|
|
|
if isinstance(pred_ids, tuple): |
|
|
pred_ids = pred_ids[0] |
|
|
else: |
|
|
pred_ids = pred_ids |
|
|
if hasattr(pred_ids, "ndim") and pred_ids.ndim == 3: |
|
|
if not isinstance(pred_ids, torch.Tensor): |
|
|
pred_ids = torch.tensor(pred_ids) |
|
|
pred_ids = pred_ids.argmax(dim=-1) |
|
|
|
|
|
|
|
|
pred_ids = pred_ids.tolist() |
|
|
label_ids = label_ids.tolist() |
|
|
|
|
|
pad_token_id = tokenizer.pad_token_id if hasattr(tokenizer, 'pad_token_id') else 0 |
|
|
label_ids = [[pad_token_id if token == -100 else token for token in seq] for seq in label_ids] |
|
|
|
|
|
if print_pred: |
|
|
pred_str = tokenizer.batch_decode(pred_ids, skip_special_tokens=False) |
|
|
label_str = tokenizer.batch_decode(label_ids, skip_special_tokens=False) |
|
|
for i in range(min(num_samples, len(pred_str))): |
|
|
print(f"Preds: {pred_str[i]}") |
|
|
print(f"Label: {label_str[i]}") |
|
|
print(f"Preds: {pred_ids[i]}") |
|
|
print(f"Label: {label_ids[i]}") |
|
|
print("--------------------------------") |
|
|
|
|
|
pred_str = tokenizer.batch_decode(pred_ids, skip_special_tokens=True) |
|
|
label_str = tokenizer.batch_decode(label_ids, skip_special_tokens=True) |
|
|
wer = 100 * metric.compute(predictions=pred_str, references=label_str) |
|
|
|
|
|
|
|
|
if model is None: |
|
|
global global_model |
|
|
if 'global_model' in globals(): |
|
|
model = global_model |
|
|
|
|
|
if model is not None: |
|
|
trainable_params = sum(p.numel() for p in model.parameters() if p.requires_grad) / 1_000_000 |
|
|
if trainable_params > 0: |
|
|
efficiency_score = (100 - wer) / trainable_params |
|
|
else: |
|
|
print("Warning: Zero trainable parameters detected") |
|
|
efficiency_score = 0.0 |
|
|
else: |
|
|
print("Warning: Model not available for parameter counting") |
|
|
trainable_params = 0.0 |
|
|
efficiency_score = 0.0 |
|
|
|
|
|
if hasattr(wer, "item"): |
|
|
wer = wer.item() |
|
|
|
|
|
metrics = { |
|
|
"wer": float(wer), |
|
|
"trainable_params_M": float(trainable_params), |
|
|
"efficiency_score": float(efficiency_score), |
|
|
} |
|
|
return metrics |
|
|
|
|
|
|
|
|
logger = logging.getLogger(__name__) |
|
|
|
|
|
def create_model(param: Dimensions) -> Echo: |
|
|
model = Echo(param).to('cuda') |
|
|
trainable_params = sum(p.numel() for p in model.parameters() if p.requires_grad) |
|
|
total_params = sum(p.numel() for p in model.parameters()) |
|
|
logger.info(f"Trainable parameters: {trainable_params:,}") |
|
|
logger.info(f"Total parameters: {total_params:,}") |
|
|
print(f"Trainable parameters: {trainable_params:,}") |
|
|
print(f"Total parameters: {total_params:,}") |
|
|
|
|
|
return model |
|
|
|
|
|
def setup_tokenizer(token: str, local_tokenizer_path: str = "./"): |
|
|
from tokenizers import Tokenizer |
|
|
tokenizer = Tokenizer.from_file(f"{local_tokenizer_path}/tokenizer.json") |
|
|
orig_encode = tokenizer.encode |
|
|
def enc(text, add_special_tokens=True): |
|
|
ids = orig_encode(text).ids |
|
|
if not add_special_tokens: |
|
|
sp_ids = [tokenizer.token_to_id(t) for t in ["<PAD>", "<BOS>", "<EOS>"]] |
|
|
ids = [id for id in ids if id not in sp_ids] |
|
|
return ids |
|
|
|
|
|
|
|
|
def bdec(ids_list, skip_special_tokens=True): |
|
|
results = [] |
|
|
for ids in ids_list: |
|
|
if skip_special_tokens: |
|
|
ids = [id for id in ids if id not in [0, 1, 2]] |
|
|
results.append(tokenizer.decode(ids)) |
|
|
return results |
|
|
|
|
|
def save_pretrained(save_dir): |
|
|
os.makedirs(save_dir, exist_ok=True) |
|
|
tokenizer.save(f"{save_dir}/tokenizer.json") |
|
|
tokenizer.encode = enc |
|
|
tokenizer.batch_decode = bdec |
|
|
tokenizer.save_pretrained = save_pretrained |
|
|
tokenizer.pad_token_id = 0 |
|
|
tokenizer.bos_token_id = 1 |
|
|
tokenizer.eos_token_id = 2 |
|
|
return tokenizer |
|
|
|
|
|
def prepare_datasets(tokenizer, token: str, sanity_check: bool = False, dataset_config: Optional[Dict] = None) -> Tuple[any, any]: |
|
|
if dataset_config is None: |
|
|
dataset_config = { |
|
|
"spectrogram": True, |
|
|
"waveforms": True, |
|
|
"pitch": True, |
|
|
"frequency": True, |
|
|
"downsamples": True, |
|
|
"hop_length": 128, |
|
|
"fmin": 50, |
|
|
"fmax": 2000, |
|
|
"n_mels": 128, |
|
|
"n_fft": 1024, |
|
|
"sampling_rate": 16000, |
|
|
} |
|
|
|
|
|
dataset = load_dataset( |
|
|
"google/fleurs", |
|
|
"en_us", |
|
|
token=token, |
|
|
trust_remote_code=True, |
|
|
streaming=False) |
|
|
|
|
|
dataset = dataset.cast_column(column="audio", feature=Audio(sampling_rate=16000)).select_columns(["audio", "transcription"]) |
|
|
|
|
|
if sanity_check: |
|
|
dataset = dataset["test"].take(10) |
|
|
dataset = dataset.select_columns(["audio", "transcription"]) |
|
|
prepare_fn = partial(extract_features, tokenizer=tokenizer, **dataset_config) |
|
|
dataset = dataset.map(function=prepare_fn, remove_columns=["audio", "transcription"]).with_format(type="torch") |
|
|
train_dataset = dataset |
|
|
test_dataset = dataset |
|
|
else: |
|
|
def filter_func(x): |
|
|
return (0 < len(x["transcription"]) < 512 and |
|
|
len(x["audio"]["array"]) > 0 and |
|
|
len(x["audio"]["array"]) < 1500 * 160) |
|
|
|
|
|
dataset = dataset.filter(filter_func) |
|
|
prepare_fn = partial(extract_features, tokenizer=tokenizer, **dataset_config) |
|
|
train_dataset = dataset["train"] |
|
|
test_dataset = dataset["test"] |
|
|
|
|
|
train_dataset = train_dataset.map( |
|
|
function=prepare_fn, |
|
|
remove_columns=["audio", "transcription"] |
|
|
).with_format(type="torch") |
|
|
|
|
|
test_dataset = test_dataset.map( |
|
|
function=prepare_fn, |
|
|
remove_columns=["audio", "transcription"] |
|
|
).with_format(type="torch") |
|
|
|
|
|
return train_dataset, test_dataset |
|
|
|
|
|
def get_training_args( |
|
|
log_dir: str, |
|
|
batch_eval_metrics: bool = False, |
|
|
max_steps: int = 10, |
|
|
save_steps: int = 1000, |
|
|
eval_steps: int = 1, |
|
|
warmup_steps: int = 0, |
|
|
num_train_epochs: int = 1, |
|
|
logging_steps: int = 1, |
|
|
eval_on_start: bool = False, |
|
|
) -> Seq2SeqTrainingArguments: |
|
|
|
|
|
return Seq2SeqTrainingArguments( |
|
|
output_dir=log_dir, |
|
|
per_device_train_batch_size=1, |
|
|
per_device_eval_batch_size=1, |
|
|
gradient_accumulation_steps=1, |
|
|
eval_accumulation_steps=1, |
|
|
eval_strategy="steps", |
|
|
save_strategy="no", |
|
|
max_steps=max_steps, |
|
|
save_steps=save_steps, |
|
|
eval_steps=eval_steps, |
|
|
warmup_steps=warmup_steps, |
|
|
num_train_epochs=num_train_epochs, |
|
|
logging_steps=logging_steps, |
|
|
logging_dir=log_dir, |
|
|
logging_strategy="steps", |
|
|
report_to=["tensorboard"], |
|
|
push_to_hub=False, |
|
|
disable_tqdm=False, |
|
|
save_total_limit=1, |
|
|
label_names=["labels"], |
|
|
save_safetensors=False, |
|
|
eval_on_start=eval_on_start, |
|
|
batch_eval_metrics=batch_eval_metrics, |
|
|
) |
|
|
|
|
|
def main(): |
|
|
|
|
|
token = "" |
|
|
log_dir = os.path.join('./output/logs', datetime.now().strftime(format='%m-%d_%H_%M_%S')) |
|
|
os.makedirs(name=log_dir, exist_ok=True) |
|
|
tokenizer = setup_tokenizer(token) |
|
|
|
|
|
def sanity(sanity: bool): |
|
|
|
|
|
if sanity: |
|
|
training_args = get_training_args( |
|
|
log_dir, |
|
|
batch_eval_metrics = False, |
|
|
max_steps = 10, |
|
|
save_steps = 0, |
|
|
eval_steps = 1, |
|
|
warmup_steps = 0, |
|
|
logging_steps = 1, |
|
|
eval_on_start = True, |
|
|
) |
|
|
else: |
|
|
training_args = get_training_args( |
|
|
log_dir, |
|
|
batch_eval_metrics = False, |
|
|
max_steps = 1000, |
|
|
save_steps = 1000, |
|
|
eval_steps = 100, |
|
|
warmup_steps = 100, |
|
|
logging_steps = 10, |
|
|
eval_on_start = False, |
|
|
) |
|
|
|
|
|
return training_args |
|
|
|
|
|
param = Dimensions( |
|
|
mels=128, |
|
|
aud_ctx=1500, |
|
|
aud_head=4, |
|
|
aud_dims=512, |
|
|
aud_idx=4, |
|
|
vocab=40000, |
|
|
text_ctx=512, |
|
|
text_head=4, |
|
|
text_dims=512, |
|
|
text_idx=4, |
|
|
act="swish", |
|
|
debug={}, |
|
|
cross_attn=True, |
|
|
features = ["spectrogram"], |
|
|
) |
|
|
|
|
|
sanity_check = False |
|
|
|
|
|
training_args = sanity(sanity_check) |
|
|
dataset_config = { |
|
|
"spectrogram": True, |
|
|
"waveforms": False, |
|
|
"pitch": False, |
|
|
"downsamples": False, |
|
|
"frequency": True, |
|
|
"hilbert": False, |
|
|
"hop_length": 128, |
|
|
"fmin": 150, |
|
|
"fmax": 2000, |
|
|
"n_mels": 128, |
|
|
"n_fft": 1024, |
|
|
"sampling_rate": 16000, |
|
|
"pad_mode": "constant", |
|
|
"center": True, |
|
|
"power": 1.0, |
|
|
"window_fn": torch.hann_window, |
|
|
"mel_scale": "htk", |
|
|
"norm": None, |
|
|
"normalized": False} |
|
|
|
|
|
model = create_model(param) |
|
|
|
|
|
global global_model |
|
|
global_model = model |
|
|
|
|
|
metrics_fn = partial(compute_metrics, print_pred=False, num_samples=1, |
|
|
tokenizer=tokenizer, model=model) |
|
|
|
|
|
print(f"{'Sanity check' if sanity_check else 'Training'} mode") |
|
|
train_dataset, test_dataset = prepare_datasets( |
|
|
tokenizer=tokenizer, |
|
|
token=token, |
|
|
sanity_check=sanity_check, |
|
|
dataset_config=dataset_config) |
|
|
|
|
|
optimizer = MaxFactor(model.parameters(), lr=0.025, beta2_decay=-0.8, eps=(1e-10, 1e-7), d=1.0, |
|
|
weight_decay=0.025, gamma=0.99, max=False) |
|
|
|
|
|
|
|
|
scheduler = torch.optim.lr_scheduler.CosineAnnealingLR( |
|
|
optimizer, |
|
|
T_max=training_args.max_steps, |
|
|
eta_min=1e-7, |
|
|
last_epoch=-1, |
|
|
) |
|
|
|
|
|
trainer = Seq2SeqTrainer( |
|
|
args=training_args, |
|
|
model=model, |
|
|
train_dataset=train_dataset, |
|
|
eval_dataset=test_dataset, |
|
|
data_collator=DataCollator(tokenizer=tokenizer), |
|
|
compute_metrics=metrics_fn, |
|
|
optimizers=(optimizer, scheduler) |
|
|
) |
|
|
|
|
|
model.init_weights() |
|
|
trainer.train() |
|
|
|
|
|
|
|
|
if __name__ == "__main__": |
|
|
main() |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
