Seed-VC / app.py
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import gradio as gr
import torch
import torchaudio
import librosa
from modules.commons import build_model, load_checkpoint, recursive_munch
import yaml
from hf_utils import load_custom_model_from_hf
import numpy as np
from pydub import AudioSegment
import spaces
# Load model and configuration
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
dit_checkpoint_path, dit_config_path = load_custom_model_from_hf("Plachta/Seed-VC",
"DiT_step_298000_seed_uvit_facodec_small_wavenet_pruned.pth",
"config_dit_mel_seed_facodec_small_wavenet.yml")
config = yaml.safe_load(open(dit_config_path, 'r'))
model_params = recursive_munch(config['model_params'])
model = build_model(model_params, stage='DiT')
hop_length = config['preprocess_params']['spect_params']['hop_length']
sr = config['preprocess_params']['sr']
# Load checkpoints
model, _, _, _ = load_checkpoint(model, None, dit_checkpoint_path,
load_only_params=True, ignore_modules=[], is_distributed=False)
for key in model:
model[key].eval()
model[key].to(device)
model.cfm.estimator.setup_caches(max_batch_size=1, max_seq_length=8192)
# Load additional modules
from modules.campplus.DTDNN import CAMPPlus
campplus_ckpt_path = load_custom_model_from_hf("funasr/campplus", "campplus_cn_common.bin", config_filename=None)
campplus_model = CAMPPlus(feat_dim=80, embedding_size=192)
campplus_model.load_state_dict(torch.load(campplus_ckpt_path, map_location="cpu"))
campplus_model.eval()
campplus_model.to(device)
from modules.hifigan.generator import HiFTGenerator
from modules.hifigan.f0_predictor import ConvRNNF0Predictor
hift_checkpoint_path, hift_config_path = load_custom_model_from_hf("Plachta/Seed-VC",
"hift.pt",
"hifigan.yml")
hift_config = yaml.safe_load(open(hift_config_path, 'r'))
hift_gen = HiFTGenerator(**hift_config['hift'], f0_predictor=ConvRNNF0Predictor(**hift_config['f0_predictor']))
hift_gen.load_state_dict(torch.load(hift_checkpoint_path, map_location='cpu'))
hift_gen.eval()
hift_gen.to(device)
from modules.bigvgan import bigvgan
bigvgan_model = bigvgan.BigVGAN.from_pretrained('nvidia/bigvgan_v2_22khz_80band_256x', use_cuda_kernel=False)
# remove weight norm in the model and set to eval mode
bigvgan_model.remove_weight_norm()
bigvgan_model = bigvgan_model.eval().to(device)
speech_tokenizer_type = config['model_params']['speech_tokenizer'].get('type', 'cosyvoice')
if speech_tokenizer_type == 'cosyvoice':
from modules.cosyvoice_tokenizer.frontend import CosyVoiceFrontEnd
speech_tokenizer_path = load_custom_model_from_hf("Plachta/Seed-VC", "speech_tokenizer_v1.onnx", None)
cosyvoice_frontend = CosyVoiceFrontEnd(speech_tokenizer_model=speech_tokenizer_path,
device='cuda', device_id=0)
elif speech_tokenizer_type == 'facodec':
ckpt_path, config_path = load_custom_model_from_hf("Plachta/FAcodec", 'pytorch_model.bin', 'config.yml')
codec_config = yaml.safe_load(open(config_path))
codec_model_params = recursive_munch(codec_config['model_params'])
codec_encoder = build_model(codec_model_params, stage="codec")
ckpt_params = torch.load(ckpt_path, map_location="cpu")
for key in codec_encoder:
codec_encoder[key].load_state_dict(ckpt_params[key], strict=False)
_ = [codec_encoder[key].eval() for key in codec_encoder]
_ = [codec_encoder[key].to(device) for key in codec_encoder]
# Generate mel spectrograms
mel_fn_args = {
"n_fft": config['preprocess_params']['spect_params']['n_fft'],
"win_size": config['preprocess_params']['spect_params']['win_length'],
"hop_size": config['preprocess_params']['spect_params']['hop_length'],
"num_mels": config['preprocess_params']['spect_params']['n_mels'],
"sampling_rate": sr,
"fmin": 0,
"fmax": 8000,
"center": False
}
mel_fn_args_f0 = {
"n_fft": config['preprocess_params']['spect_params']['n_fft'],
"win_size": config['preprocess_params']['spect_params']['win_length'],
"hop_size": config['preprocess_params']['spect_params']['hop_length'],
"num_mels": config['preprocess_params']['spect_params']['n_mels'],
"sampling_rate": sr,
"fmin": 0,
"fmax": None,
"center": False
}
from modules.audio import mel_spectrogram
to_mel = lambda x: mel_spectrogram(x, **mel_fn_args)
to_mel_f0 = lambda x: mel_spectrogram(x, **mel_fn_args_f0)
# f0 conditioned model
dit_checkpoint_path, dit_config_path = load_custom_model_from_hf("Plachta/Seed-VC",
"DiT_seed_v2_uvit_facodec_small_wavenet_f0_bigvgan_pruned.pth",
"config_dit_mel_seed_facodec_small_wavenet_f0.yml")
config = yaml.safe_load(open(dit_config_path, 'r'))
model_params = recursive_munch(config['model_params'])
model_f0 = build_model(model_params, stage='DiT')
hop_length = config['preprocess_params']['spect_params']['hop_length']
sr = config['preprocess_params']['sr']
# Load checkpoints
model_f0, _, _, _ = load_checkpoint(model_f0, None, dit_checkpoint_path,
load_only_params=True, ignore_modules=[], is_distributed=False)
for key in model_f0:
model_f0[key].eval()
model_f0[key].to(device)
model_f0.cfm.estimator.setup_caches(max_batch_size=1, max_seq_length=8192)
# f0 extractor
from modules.rmvpe import RMVPE
model_path = load_custom_model_from_hf("lj1995/VoiceConversionWebUI", "rmvpe.pt", None)
rmvpe = RMVPE(model_path, is_half=False, device=device)
def adjust_f0_semitones(f0_sequence, n_semitones):
factor = 2 ** (n_semitones / 12)
return f0_sequence * factor
def crossfade(chunk1, chunk2, overlap):
fade_out = np.linspace(1, 0, overlap)
fade_in = np.linspace(0, 1, overlap)
chunk2[:overlap] = chunk2[:overlap] * fade_in + chunk1[-overlap:] * fade_out
return chunk2
# streaming and chunk processing related params
max_context_window = sr // hop_length * 30
overlap_frame_len = 64
overlap_wave_len = overlap_frame_len * hop_length
bitrate = "320k"
@spaces.GPU
@torch.no_grad()
@torch.inference_mode()
def voice_conversion(source, target, diffusion_steps, length_adjust, inference_cfg_rate, n_quantizers, f0_condition, auto_f0_adjust, pitch_shift):
inference_module = model if not f0_condition else model_f0
mel_fn = to_mel if not f0_condition else to_mel_f0
# Load audio
source_audio = librosa.load(source, sr=sr)[0]
ref_audio = librosa.load(target, sr=sr)[0]
# Process audio
source_audio = torch.tensor(source_audio).unsqueeze(0).float().to(device)
ref_audio = torch.tensor(ref_audio[:sr * 25]).unsqueeze(0).float().to(device)
# Resample
source_waves_16k = torchaudio.functional.resample(source_audio, sr, 16000)
ref_waves_16k = torchaudio.functional.resample(ref_audio, sr, 16000)
# Extract features
if speech_tokenizer_type == 'cosyvoice':
S_alt = cosyvoice_frontend.extract_speech_token(source_waves_16k)[0]
S_ori = cosyvoice_frontend.extract_speech_token(ref_waves_16k)[0]
elif speech_tokenizer_type == 'facodec':
converted_waves_24k = torchaudio.functional.resample(source_audio, sr, 24000)
waves_input = converted_waves_24k.unsqueeze(1)
max_wave_len_per_chunk = 24000 * 20
wave_input_chunks = [
waves_input[..., i:i + max_wave_len_per_chunk] for i in range(0, waves_input.size(-1), max_wave_len_per_chunk)
]
S_alt_chunks = []
for i, chunk in enumerate(wave_input_chunks):
z = codec_encoder.encoder(chunk)
(
quantized,
codes
) = codec_encoder.quantizer(
z,
chunk,
)
S_alt = torch.cat([codes[1], codes[0]], dim=1)
S_alt_chunks.append(S_alt)
S_alt = torch.cat(S_alt_chunks, dim=-1)
# S_ori should be extracted in the same way
waves_24k = torchaudio.functional.resample(ref_audio, sr, 24000)
waves_input = waves_24k.unsqueeze(1)
z = codec_encoder.encoder(waves_input)
(
quantized,
codes
) = codec_encoder.quantizer(
z,
waves_input,
)
S_ori = torch.cat([codes[1], codes[0]], dim=1)
mel = mel_fn(source_audio.to(device).float())
mel2 = mel_fn(ref_audio.to(device).float())
target_lengths = torch.LongTensor([int(mel.size(2) * length_adjust)]).to(mel.device)
target2_lengths = torch.LongTensor([mel2.size(2)]).to(mel2.device)
feat2 = torchaudio.compliance.kaldi.fbank(ref_waves_16k,
num_mel_bins=80,
dither=0,
sample_frequency=16000)
feat2 = feat2 - feat2.mean(dim=0, keepdim=True)
style2 = campplus_model(feat2.unsqueeze(0))
if f0_condition:
waves_16k = torchaudio.functional.resample(waves_24k, 24000, 16000)
converted_waves_16k = torchaudio.functional.resample(converted_waves_24k, 24000, 16000)
F0_ori = rmvpe.infer_from_audio(waves_16k[0], thred=0.03)
F0_alt = rmvpe.infer_from_audio(converted_waves_16k[0], thred=0.03)
F0_ori = torch.from_numpy(F0_ori).to(device)[None]
F0_alt = torch.from_numpy(F0_alt).to(device)[None]
voiced_F0_ori = F0_ori[F0_ori > 1]
voiced_F0_alt = F0_alt[F0_alt > 1]
log_f0_alt = torch.log(F0_alt + 1e-5)
voiced_log_f0_ori = torch.log(voiced_F0_ori + 1e-5)
voiced_log_f0_alt = torch.log(voiced_F0_alt + 1e-5)
median_log_f0_ori = torch.median(voiced_log_f0_ori)
median_log_f0_alt = torch.median(voiced_log_f0_alt)
# mean_log_f0_ori = torch.mean(voiced_log_f0_ori)
# mean_log_f0_alt = torch.mean(voiced_log_f0_alt)
# shift alt log f0 level to ori log f0 level
shifted_log_f0_alt = log_f0_alt.clone()
if auto_f0_adjust:
shifted_log_f0_alt[F0_alt > 1] = log_f0_alt[F0_alt > 1] - median_log_f0_alt + median_log_f0_ori
shifted_f0_alt = torch.exp(shifted_log_f0_alt)
if pitch_shift != 0:
shifted_f0_alt[F0_alt > 1] = adjust_f0_semitones(shifted_f0_alt[F0_alt > 1], pitch_shift)
else:
F0_ori = None
F0_alt = None
shifted_f0_alt = None
# Length regulation
cond = inference_module.length_regulator(S_alt, ylens=target_lengths, n_quantizers=int(n_quantizers), f0=shifted_f0_alt)[0]
prompt_condition = inference_module.length_regulator(S_ori, ylens=target2_lengths, n_quantizers=int(n_quantizers), f0=F0_ori)[0]
max_source_window = max_context_window - mel2.size(2)
# split source condition (cond) into chunks
processed_frames = 0
generated_wave_chunks = []
# generate chunk by chunk and stream the output
while processed_frames < cond.size(1):
chunk_cond = cond[:, processed_frames:processed_frames + max_source_window]
is_last_chunk = processed_frames + max_source_window >= cond.size(1)
cat_condition = torch.cat([prompt_condition, chunk_cond], dim=1)
# Voice Conversion
vc_target = inference_module.cfm.inference(cat_condition,
torch.LongTensor([cat_condition.size(1)]).to(mel2.device),
mel2, style2, None, diffusion_steps,
inference_cfg_rate=inference_cfg_rate)
vc_target = vc_target[:, :, mel2.size(-1):]
if not f0_condition:
vc_wave = hift_gen.inference(vc_target, f0=None)
else:
vc_wave = bigvgan_model(vc_target)[0]
if processed_frames == 0:
if is_last_chunk:
output_wave = vc_wave[0].cpu().numpy()
generated_wave_chunks.append(output_wave)
output_wave = (output_wave * 32768.0).astype(np.int16)
mp3_bytes = AudioSegment(
output_wave.tobytes(), frame_rate=sr,
sample_width=output_wave.dtype.itemsize, channels=1
).export(format="mp3", bitrate=bitrate).read()
yield mp3_bytes, (sr, np.concatenate(generated_wave_chunks))
break
output_wave = vc_wave[0, :-overlap_wave_len].cpu().numpy()
generated_wave_chunks.append(output_wave)
previous_chunk = vc_wave[0, -overlap_wave_len:]
processed_frames += vc_target.size(2) - overlap_frame_len
output_wave = (output_wave * 32768.0).astype(np.int16)
mp3_bytes = AudioSegment(
output_wave.tobytes(), frame_rate=sr,
sample_width=output_wave.dtype.itemsize, channels=1
).export(format="mp3", bitrate=bitrate).read()
yield mp3_bytes, None
elif is_last_chunk:
output_wave = crossfade(previous_chunk.cpu().numpy(), vc_wave[0].cpu().numpy(), overlap_wave_len)
generated_wave_chunks.append(output_wave)
processed_frames += vc_target.size(2) - overlap_frame_len
output_wave = (output_wave * 32768.0).astype(np.int16)
mp3_bytes = AudioSegment(
output_wave.tobytes(), frame_rate=sr,
sample_width=output_wave.dtype.itemsize, channels=1
).export(format="mp3", bitrate=bitrate).read()
yield mp3_bytes, (sr, np.concatenate(generated_wave_chunks))
break
else:
output_wave = crossfade(previous_chunk.cpu().numpy(), vc_wave[0, :-overlap_wave_len].cpu().numpy(), overlap_wave_len)
generated_wave_chunks.append(output_wave)
previous_chunk = vc_wave[0, -overlap_wave_len:]
processed_frames += vc_target.size(2) - overlap_frame_len
output_wave = (output_wave * 32768.0).astype(np.int16)
mp3_bytes = AudioSegment(
output_wave.tobytes(), frame_rate=sr,
sample_width=output_wave.dtype.itemsize, channels=1
).export(format="mp3", bitrate=bitrate).read()
yield mp3_bytes, None
if __name__ == "__main__":
description = ("Zero-shot voice conversion with in-context learning. For local deployment please check [GitHub repository](https://github.com/Plachtaa/seed-vc) "
"for details and updates.<br>Note that any reference audio will be forcefully clipped to 25s if beyond this length.<br> "
"If total duration of source and reference audio exceeds 30s, source audio will be processed in chunks.<br> "
"无需训练的 zero-shot 语音/歌声转换模型,若需本地部署查看[GitHub页面](https://github.com/Plachtaa/seed-vc)<br>"
"请注意,参考音频若超过 25 秒,则会被自动裁剪至此长度。<br>若源音频和参考音频的总时长超过 30 秒,源音频将被分段处理。")
inputs = [
gr.Audio(type="filepath", label="Source Audio / 源音频"),
gr.Audio(type="filepath", label="Reference Audio / 参考音频"),
gr.Slider(minimum=1, maximum=200, value=10, step=1, label="Diffusion Steps / 扩散步数", info="10 by default, 50~100 for best quality / 默认为 10,50~100 为最佳质量"),
gr.Slider(minimum=0.5, maximum=2.0, step=0.1, value=1.0, label="Length Adjust / 长度调整", info="<1.0 for speed-up speech, >1.0 for slow-down speech / <1.0 加速语速,>1.0 减慢语速"),
gr.Slider(minimum=0.0, maximum=1.0, step=0.1, value=0.7, label="Inference CFG Rate", info="has subtle influence / 有微小影响"),
gr.Slider(minimum=1, maximum=3, step=1, value=3, label="N FAcodec Quantizers / FAcodec码本数量", info="the less FAcodec quantizer used, the less prosody of source audio is preserved / 使用的FAcodec码本越少,源音频的韵律保留越少"),
gr.Checkbox(label="Use F0 conditioned model / 启用F0输入", value=False, info="Must set to true for singing voice conversion / 歌声转换时必须勾选"),
gr.Checkbox(label="Auto F0 adjust / 自动F0调整", value=True,
info="Roughly adjust F0 to match target voice. Only works when F0 conditioned model is used. / 粗略调整 F0 以匹配目标音色,仅在勾选 '启用F0输入' 时生效"),
gr.Slider(label='Pitch shift / 音调变换', minimum=-24, maximum=24, step=1, value=0, info="Pitch shift in semitones, only works when F0 conditioned model is used / 半音数的音高变换,仅在勾选 '启用F0输入' 时生效"),
]
examples = [["examples/source/yae_0.wav", "examples/reference/dingzhen_0.wav", 25, 1.0, 0.7, 1, False, True, 0],
["examples/source/jay_0.wav", "examples/reference/azuma_0.wav", 25, 1.0, 0.7, 1, True, True, 0],
["examples/source/Wiz Khalifa,Charlie Puth - See You Again [vocals]_[cut_28sec].wav",
"examples/reference/teio_0.wav", 100, 1.0, 0.7, 1, True, False, 0],
["examples/source/TECHNOPOLIS - 2085 [vocals]_[cut_14sec].wav",
"examples/reference/trump_0.wav", 50, 1.0, 0.7, 1, True, False, -12],
]
outputs = [gr.Audio(label="Stream Output Audio / 流式输出", streaming=True, format='mp3'),
gr.Audio(label="Full Output Audio / 完整输出", streaming=False, format='wav')]
gr.Interface(fn=voice_conversion,
description=description,
inputs=inputs,
outputs=outputs,
title="Seed Voice Conversion",
examples=examples,
cache_examples=False,
).launch()