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import argparse
import torch.nn as nn
# from icefall.utils import AttributeDict, str2bool
from .macros import (
NUM_AUDIO_TOKENS,
NUM_MEL_BINS,
NUM_SPEAKER_CLASSES,
NUM_TEXT_TOKENS,
SPEAKER_EMBEDDING_DIM,
)
from .vallex import VALLE, VALLF
def add_model_arguments(parser: argparse.ArgumentParser):
parser.add_argument(
"--model-name",
type=str,
default="VALL-E",
help="VALL-E, VALL-F, Transformer.",
)
parser.add_argument(
"--decoder-dim",
type=int,
default=1024,
help="Embedding dimension in the decoder model.",
)
parser.add_argument(
"--nhead",
type=int,
default=16,
help="Number of attention heads in the Decoder layers.",
)
parser.add_argument(
"--num-decoder-layers",
type=int,
default=12,
help="Number of Decoder layers.",
)
parser.add_argument(
"--scale-factor",
type=float,
default=1.0,
help="Model scale factor which will be assigned different meanings in different models.",
)
parser.add_argument(
"--norm-first",
type=bool,
default=True,
help="Pre or Post Normalization.",
)
parser.add_argument(
"--add-prenet",
type=bool,
default=False,
help="Whether add PreNet after Inputs.",
)
# VALL-E & F
parser.add_argument(
"--prefix-mode",
type=int,
default=1,
help="The mode for how to prefix VALL-E NAR Decoder, "
"0: no prefix, 1: 0 to random, 2: random to random, 4: chunk of pre or post utterance.",
)
parser.add_argument(
"--share-embedding",
type=bool,
default=True,
help="Share the parameters of the output projection layer with the parameters of the acoustic embedding.",
)
parser.add_argument(
"--prepend-bos",
type=bool,
default=False,
help="Whether prepend <BOS> to the acoustic tokens -> AR Decoder inputs.",
)
parser.add_argument(
"--num-quantizers",
type=int,
default=8,
help="Number of Audio/Semantic quantization layers.",
)
# Transformer
parser.add_argument(
"--scaling-xformers",
type=bool,
default=False,
help="Apply Reworked Conformer scaling on Transformers.",
)
def get_model(params) -> nn.Module:
if params.model_name.lower() in ["vall-f", "vallf"]:
model = VALLF(
params.decoder_dim,
params.nhead,
params.num_decoder_layers,
norm_first=params.norm_first,
add_prenet=params.add_prenet,
prefix_mode=params.prefix_mode,
share_embedding=params.share_embedding,
nar_scale_factor=params.scale_factor,
prepend_bos=params.prepend_bos,
num_quantizers=params.num_quantizers,
)
elif params.model_name.lower() in ["vall-e", "valle"]:
model = VALLE(
params.decoder_dim,
params.nhead,
params.num_decoder_layers,
norm_first=params.norm_first,
add_prenet=params.add_prenet,
prefix_mode=params.prefix_mode,
share_embedding=params.share_embedding,
nar_scale_factor=params.scale_factor,
prepend_bos=params.prepend_bos,
num_quantizers=params.num_quantizers,
)
else:
raise ValueError("No such model")
return model
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