def test_parallel_wavegan_generator_and_discriminator(dict_g, dict_d):
# setup
batch_size = 4
batch_length = 4096
args_g = make_generator_args(**dict_g)
args_d = make_discriminator_args(**dict_d)
y = torch.randn(batch_size, 1, batch_length)
c = torch.randn(
batch_size,
args_g["aux_channels"],
batch_length // np.prod(args_g["upsample_params"]["upsample_scales"]),
)
model_g = ParallelWaveGANGenerator(**args_g)
model_d = ParallelWaveGANDiscriminator(**args_d)
gen_adv_criterion = GeneratorAdversarialLoss()
dis_adv_criterion = DiscriminatorAdversarialLoss()
optimizer_g = torch.optim.Adam(model_g.parameters())
optimizer_d = torch.optim.Adam(model_d.parameters())
# check generator trainable
y_hat = model_g(c)
p_hat = model_d(y_hat)
loss_g = gen_adv_criterion(p_hat)
optimizer_g.zero_grad()
loss_g.backward()
optimizer_g.step()
# check discriminator trainable
p = model_d(y)
p_hat = model_d(y_hat.detach())
real_loss, fake_loss = dis_adv_criterion(p_hat, p)
loss_d = real_loss + fake_loss
optimizer_d.zero_grad()
loss_d.backward()
optimizer_d.step()
def test_hifigan_generator_and_discriminator_and_loss(
dict_g, dict_d, dict_loss, average, include
):
batch_size = 2
batch_length = 128
args_g = make_hifigan_generator_args(**dict_g)
args_d = make_hifigan_multi_scale_multi_period_discriminator_args(**dict_d)
args_loss = make_mel_loss_args(**dict_loss)
y = torch.randn(batch_size, 1, batch_length)
c = torch.randn(
batch_size,
args_g["in_channels"],
batch_length // np.prod(args_g["upsample_scales"]),
)
g = None
if args_g.get("global_channels") is not None:
g = torch.randn(batch_size, args_g["global_channels"], 1)
model_g = HiFiGANGenerator(**args_g)
model_d = HiFiGANMultiScaleMultiPeriodDiscriminator(**args_d)
aux_criterion = MelSpectrogramLoss(**args_loss)
feat_match_criterion = FeatureMatchLoss(
average_by_layers=average,
average_by_discriminators=average,
include_final_outputs=include,
)
gen_adv_criterion = GeneratorAdversarialLoss(
average_by_discriminators=average,
)
dis_adv_criterion = DiscriminatorAdversarialLoss(
average_by_discriminators=average,
)
optimizer_g = torch.optim.AdamW(model_g.parameters())
optimizer_d = torch.optim.AdamW(model_d.parameters())
# check generator trainable
y_hat = model_g(c, g=g)
p_hat = model_d(y_hat)
aux_loss = aux_criterion(y_hat, y)
adv_loss = gen_adv_criterion(p_hat)
with torch.no_grad():
p = model_d(y)
fm_loss = feat_match_criterion(p_hat, p)
loss_g = adv_loss + aux_loss + fm_loss
optimizer_g.zero_grad()
loss_g.backward()
optimizer_g.step()
# check discriminator trainable
p = model_d(y)
p_hat = model_d(y_hat.detach())
real_loss, fake_loss = dis_adv_criterion(p_hat, p)
loss_d = real_loss + fake_loss
optimizer_d.zero_grad()
loss_d.backward()
optimizer_d.step()
def test_melgan_generator_and_discriminator(dict_g, dict_d):
# setup
batch_size = 2
batch_length = 512
args_g = make_melgan_generator_args(**dict_g)
args_d = make_melgan_discriminator_args(**dict_d)
y = torch.randn(batch_size, 1, batch_length)
c = torch.randn(
batch_size,
args_g["in_channels"],
batch_length // np.prod(args_g["upsample_scales"]),
)
model_g = MelGANGenerator(**args_g)
model_d = MelGANMultiScaleDiscriminator(**args_d)
gen_adv_criterion = GeneratorAdversarialLoss()
dis_adv_criterion = DiscriminatorAdversarialLoss()
feat_match_criterion = FeatureMatchLoss()
optimizer_g = torch.optim.Adam(model_g.parameters())
optimizer_d = torch.optim.Adam(model_d.parameters())
# check generator trainable
y_hat = model_g(c)
p_hat = model_d(y_hat)
adv_loss = gen_adv_criterion(p_hat)
with torch.no_grad():
p = model_d(y)
fm_loss = feat_match_criterion(p_hat, p)
loss_g = adv_loss + fm_loss
optimizer_g.zero_grad()
loss_g.backward()
optimizer_g.step()
# check discriminator trainable
p = model_d(y)
p_hat = model_d(y_hat.detach())
real_loss, fake_loss = dis_adv_criterion(p_hat, p)
loss_d = real_loss + fake_loss
optimizer_d.zero_grad()
loss_d.backward()
optimizer_d.step()
def test_style_melgan_trainable(dict_g, dict_d):
# setup
args_g = make_style_melgan_generator_args(**dict_g)
args_d = make_style_melgan_discriminator_args(**dict_d)
batch_size = 2
batch_length = np.prod(args_g["noise_upsample_scales"]) * np.prod(
args_g["upsample_scales"])
y = torch.randn(batch_size, 1, batch_length)
c = torch.randn(
batch_size,
args_g["aux_channels"],
batch_length // np.prod(args_g["upsample_scales"]),
)
model_g = StyleMelGANGenerator(**args_g)
model_d = StyleMelGANDiscriminator(**args_d)
gen_adv_criterion = GeneratorAdversarialLoss()
dis_adv_criterion = DiscriminatorAdversarialLoss()
optimizer_g = torch.optim.Adam(model_g.parameters())
optimizer_d = torch.optim.Adam(model_d.parameters())
# check generator trainable
y_hat = model_g(c)
p_hat = model_d(y_hat)
adv_loss = gen_adv_criterion(p_hat)
loss_g = adv_loss
optimizer_g.zero_grad()
loss_g.backward()
optimizer_g.step()
# check discriminator trainable
p = model_d(y)
p_hat = model_d(y_hat.detach())
real_loss, fake_loss = dis_adv_criterion(p_hat, p)
loss_d = real_loss + fake_loss
optimizer_d.zero_grad()
loss_d.backward()
optimizer_d.step()
def __init__(
self,
# generator (text2mel + vocoder) related
idim: int,
odim: int,
segment_size: int = 32,
sampling_rate: int = 22050,
text2mel_type: str = "fastspeech2",
text2mel_params: Dict[str, Any] = {
"adim": 384,
"aheads": 2,
"elayers": 4,
"eunits": 1536,
"dlayers": 4,
"dunits": 1536,
"postnet_layers": 5,
"postnet_chans": 512,
"postnet_filts": 5,
"postnet_dropout_rate": 0.5,
"positionwise_layer_type": "conv1d",
"positionwise_conv_kernel_size": 1,
"use_scaled_pos_enc": True,
"use_batch_norm": True,
"encoder_normalize_before": True,
"decoder_normalize_before": True,
"encoder_concat_after": False,
"decoder_concat_after": False,
"reduction_factor": 1,
"encoder_type": "conformer",
"decoder_type": "conformer",
"transformer_enc_dropout_rate": 0.1,
"transformer_enc_positional_dropout_rate": 0.1,
"transformer_enc_attn_dropout_rate": 0.1,
"transformer_dec_dropout_rate": 0.1,
"transformer_dec_positional_dropout_rate": 0.1,
"transformer_dec_attn_dropout_rate": 0.1,
"conformer_rel_pos_type": "latest",
"conformer_pos_enc_layer_type": "rel_pos",
"conformer_self_attn_layer_type": "rel_selfattn",
"conformer_activation_type": "swish",
"use_macaron_style_in_conformer": True,
"use_cnn_in_conformer": True,
"zero_triu": False,
"conformer_enc_kernel_size": 7,
"conformer_dec_kernel_size": 31,
"duration_predictor_layers": 2,
"duration_predictor_chans": 384,
"duration_predictor_kernel_size": 3,
"duration_predictor_dropout_rate": 0.1,
"energy_predictor_layers": 2,
"energy_predictor_chans": 384,
"energy_predictor_kernel_size": 3,
"energy_predictor_dropout": 0.5,
"energy_embed_kernel_size": 1,
"energy_embed_dropout": 0.5,
"stop_gradient_from_energy_predictor": False,
"pitch_predictor_layers": 5,
"pitch_predictor_chans": 384,
"pitch_predictor_kernel_size": 5,
"pitch_predictor_dropout": 0.5,
"pitch_embed_kernel_size": 1,
"pitch_embed_dropout": 0.5,
"stop_gradient_from_pitch_predictor": True,
"spks": -1,
"langs": -1,
"spk_embed_dim": None,
"spk_embed_integration_type": "add",
"use_gst": False,
"gst_tokens": 10,
"gst_heads": 4,
"gst_conv_layers": 6,
"gst_conv_chans_list": [32, 32, 64, 64, 128, 128],
"gst_conv_kernel_size": 3,
"gst_conv_stride": 2,
"gst_gru_layers": 1,
"gst_gru_units": 128,
"init_type": "xavier_uniform",
"init_enc_alpha": 1.0,
"init_dec_alpha": 1.0,
"use_masking": False,
"use_weighted_masking": False,
},
vocoder_type: str = "hifigan_generator",
vocoder_params: Dict[str, Any] = {
"out_channels": 1,
"channels": 512,
"global_channels": -1,
"kernel_size": 7,
"upsample_scales": [8, 8, 2, 2],
"upsample_kernel_sizes": [16, 16, 4, 4],
"resblock_kernel_sizes": [3, 7, 11],
"resblock_dilations": [[1, 3, 5], [1, 3, 5], [1, 3, 5]],
"use_additional_convs": True,
"bias": True,
"nonlinear_activation": "LeakyReLU",
"nonlinear_activation_params": {
"negative_slope": 0.1
},
"use_weight_norm": True,
},
use_pqmf: bool = False,
pqmf_params: Dict[str, Any] = {
"subbands": 4,
"taps": 62,
"cutoff_ratio": 0.142,
"beta": 9.0,
},
# discriminator related
discriminator_type:
str = "hifigan_multi_scale_multi_period_discriminator",
discriminator_params: Dict[str, Any] = {
"scales": 1,
"scale_downsample_pooling": "AvgPool1d",
"scale_downsample_pooling_params": {
"kernel_size": 4,
"stride": 2,
"padding": 2,
},
"scale_discriminator_params": {
"in_channels": 1,
"out_channels": 1,
"kernel_sizes": [15, 41, 5, 3],
"channels": 128,
"max_downsample_channels": 1024,
"max_groups": 16,
"bias": True,
"downsample_scales": [2, 2, 4, 4, 1],
"nonlinear_activation": "LeakyReLU",
"nonlinear_activation_params": {
"negative_slope": 0.1
},
"use_weight_norm": True,
"use_spectral_norm": False,
},
"follow_official_norm": False,
"periods": [2, 3, 5, 7, 11],
"period_discriminator_params": {
"in_channels": 1,
"out_channels": 1,
"kernel_sizes": [5, 3],
"channels": 32,
"downsample_scales": [3, 3, 3, 3, 1],
"max_downsample_channels": 1024,
"bias": True,
"nonlinear_activation": "LeakyReLU",
"nonlinear_activation_params": {
"negative_slope": 0.1
},
"use_weight_norm": True,
"use_spectral_norm": False,
},
},
# loss related
generator_adv_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"loss_type": "mse",
},
discriminator_adv_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"loss_type": "mse",
},
use_feat_match_loss: bool = True,
feat_match_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"average_by_layers": False,
"include_final_outputs": True,
},
use_mel_loss: bool = True,
mel_loss_params: Dict[str, Any] = {
"fs": 22050,
"n_fft": 1024,
"hop_length": 256,
"win_length": None,
"window": "hann",
"n_mels": 80,
"fmin": 0,
"fmax": None,
"log_base": None,
},
lambda_text2mel: float = 1.0,
lambda_adv: float = 1.0,
lambda_feat_match: float = 2.0,
lambda_mel: float = 45.0,
cache_generator_outputs: bool = False,
):
"""Initialize JointText2Wav module.
Args:
idim (int): Input vocabrary size.
odim (int): Acoustic feature dimension. The actual output channels will
be 1 since the model is the end-to-end text-to-wave model but for the
compatibility odim is used to indicate the acoustic feature dimension.
segment_size (int): Segment size for random windowed inputs.
sampling_rate (int): Sampling rate, not used for the training but it will
be referred in saving waveform during the inference.
text2mel_type (str): The text2mel model type.
text2mel_params (Dict[str, Any]): Parameter dict for text2mel model.
use_pqmf (bool): Whether to use PQMF for multi-band vocoder.
pqmf_params (Dict[str, Any]): Parameter dict for PQMF module.
vocoder_type (str): The vocoder model type.
vocoder_params (Dict[str, Any]): Parameter dict for vocoder model.
discriminator_type (str): Discriminator type.
discriminator_params (Dict[str, Any]): Parameter dict for discriminator.
generator_adv_loss_params (Dict[str, Any]): Parameter dict for generator
adversarial loss.
discriminator_adv_loss_params (Dict[str, Any]): Parameter dict for
discriminator adversarial loss.
use_feat_match_loss (bool): Whether to use feat match loss.
feat_match_loss_params (Dict[str, Any]): Parameter dict for feat match loss.
use_mel_loss (bool): Whether to use mel loss.
mel_loss_params (Dict[str, Any]): Parameter dict for mel loss.
lambda_text2mel (float): Loss scaling coefficient for text2mel model loss.
lambda_adv (float): Loss scaling coefficient for adversarial loss.
lambda_feat_match (float): Loss scaling coefficient for feat match loss.
lambda_mel (float): Loss scaling coefficient for mel loss.
cache_generator_outputs (bool): Whether to cache generator outputs.
"""
assert check_argument_types()
super().__init__()
self.segment_size = segment_size
self.use_pqmf = use_pqmf
# define modules
self.generator = torch.nn.ModuleDict()
text2mel_class = AVAILABLE_TEXT2MEL[text2mel_type]
text2mel_params.update(idim=idim, odim=odim)
self.generator["text2mel"] = text2mel_class(**text2mel_params, )
vocoder_class = AVAILABLE_VOCODER[vocoder_type]
if vocoder_type == "hifigan_generator":
vocoder_params.update(in_channels=odim)
elif vocoder_type == "parallel_wavegan_generator":
vocoder_params.update(aux_channels=odim)
self.generator["vocoder"] = vocoder_class(**vocoder_params, )
if self.use_pqmf:
self.pqmf = PQMF(**pqmf_params)
discriminator_class = AVAILABLE_DISCRIMINATORS[discriminator_type]
self.discriminator = discriminator_class(**discriminator_params, )
self.generator_adv_loss = GeneratorAdversarialLoss(
**generator_adv_loss_params, )
self.discriminator_adv_loss = DiscriminatorAdversarialLoss(
**discriminator_adv_loss_params, )
self.use_feat_match_loss = use_feat_match_loss
if self.use_feat_match_loss:
self.feat_match_loss = FeatureMatchLoss(**feat_match_loss_params, )
self.use_mel_loss = use_mel_loss
if self.use_mel_loss:
self.mel_loss = MelSpectrogramLoss(**mel_loss_params, )
# coefficients
self.lambda_text2mel = lambda_text2mel
self.lambda_adv = lambda_adv
if self.use_feat_match_loss:
self.lambda_feat_match = lambda_feat_match
if self.use_mel_loss:
self.lambda_mel = lambda_mel
# cache
self.cache_generator_outputs = cache_generator_outputs
self._cache = None
# store sampling rate for saving wav file
# (not used for the training)
self.fs = sampling_rate
def __init__(
self,
# generator related
idim: int,
odim: int,
sampling_rate: int = 22050,
generator_type: str = "vits_generator",
generator_params: Dict[str, Any] = {
"hidden_channels": 192,
"spks": None,
"langs": None,
"spk_embed_dim": None,
"global_channels": -1,
"segment_size": 32,
"text_encoder_attention_heads": 2,
"text_encoder_ffn_expand": 4,
"text_encoder_blocks": 6,
"text_encoder_positionwise_layer_type": "conv1d",
"text_encoder_positionwise_conv_kernel_size": 1,
"text_encoder_positional_encoding_layer_type": "rel_pos",
"text_encoder_self_attention_layer_type": "rel_selfattn",
"text_encoder_activation_type": "swish",
"text_encoder_normalize_before": True,
"text_encoder_dropout_rate": 0.1,
"text_encoder_positional_dropout_rate": 0.0,
"text_encoder_attention_dropout_rate": 0.0,
"text_encoder_conformer_kernel_size": 7,
"use_macaron_style_in_text_encoder": True,
"use_conformer_conv_in_text_encoder": True,
"decoder_kernel_size": 7,
"decoder_channels": 512,
"decoder_upsample_scales": [8, 8, 2, 2],
"decoder_upsample_kernel_sizes": [16, 16, 4, 4],
"decoder_resblock_kernel_sizes": [3, 7, 11],
"decoder_resblock_dilations": [[1, 3, 5], [1, 3, 5], [1, 3, 5]],
"use_weight_norm_in_decoder": True,
"posterior_encoder_kernel_size": 5,
"posterior_encoder_layers": 16,
"posterior_encoder_stacks": 1,
"posterior_encoder_base_dilation": 1,
"posterior_encoder_dropout_rate": 0.0,
"use_weight_norm_in_posterior_encoder": True,
"flow_flows": 4,
"flow_kernel_size": 5,
"flow_base_dilation": 1,
"flow_layers": 4,
"flow_dropout_rate": 0.0,
"use_weight_norm_in_flow": True,
"use_only_mean_in_flow": True,
"stochastic_duration_predictor_kernel_size": 3,
"stochastic_duration_predictor_dropout_rate": 0.5,
"stochastic_duration_predictor_flows": 4,
"stochastic_duration_predictor_dds_conv_layers": 3,
},
# discriminator related
discriminator_type: str = "hifigan_multi_scale_multi_period_discriminator",
discriminator_params: Dict[str, Any] = {
"scales": 1,
"scale_downsample_pooling": "AvgPool1d",
"scale_downsample_pooling_params": {
"kernel_size": 4,
"stride": 2,
"padding": 2,
},
"scale_discriminator_params": {
"in_channels": 1,
"out_channels": 1,
"kernel_sizes": [15, 41, 5, 3],
"channels": 128,
"max_downsample_channels": 1024,
"max_groups": 16,
"bias": True,
"downsample_scales": [2, 2, 4, 4, 1],
"nonlinear_activation": "LeakyReLU",
"nonlinear_activation_params": {"negative_slope": 0.1},
"use_weight_norm": True,
"use_spectral_norm": False,
},
"follow_official_norm": False,
"periods": [2, 3, 5, 7, 11],
"period_discriminator_params": {
"in_channels": 1,
"out_channels": 1,
"kernel_sizes": [5, 3],
"channels": 32,
"downsample_scales": [3, 3, 3, 3, 1],
"max_downsample_channels": 1024,
"bias": True,
"nonlinear_activation": "LeakyReLU",
"nonlinear_activation_params": {"negative_slope": 0.1},
"use_weight_norm": True,
"use_spectral_norm": False,
},
},
# loss related
generator_adv_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"loss_type": "mse",
},
discriminator_adv_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"loss_type": "mse",
},
feat_match_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"average_by_layers": False,
"include_final_outputs": True,
},
mel_loss_params: Dict[str, Any] = {
"fs": 22050,
"n_fft": 1024,
"hop_length": 256,
"win_length": None,
"window": "hann",
"n_mels": 80,
"fmin": 0,
"fmax": None,
"log_base": None,
},
lambda_adv: float = 1.0,
lambda_mel: float = 45.0,
lambda_feat_match: float = 2.0,
lambda_dur: float = 1.0,
lambda_kl: float = 1.0,
cache_generator_outputs: bool = True,
):
"""Initialize VITS module.
Args:
idim (int): Input vocabrary size.
odim (int): Acoustic feature dimension. The actual output channels will
be 1 since VITS is the end-to-end text-to-wave model but for the
compatibility odim is used to indicate the acoustic feature dimension.
sampling_rate (int): Sampling rate, not used for the training but it will
be referred in saving waveform during the inference.
generator_type (str): Generator type.
generator_params (Dict[str, Any]): Parameter dict for generator.
discriminator_type (str): Discriminator type.
discriminator_params (Dict[str, Any]): Parameter dict for discriminator.
generator_adv_loss_params (Dict[str, Any]): Parameter dict for generator
adversarial loss.
discriminator_adv_loss_params (Dict[str, Any]): Parameter dict for
discriminator adversarial loss.
feat_match_loss_params (Dict[str, Any]): Parameter dict for feat match loss.
mel_loss_params (Dict[str, Any]): Parameter dict for mel loss.
lambda_adv (float): Loss scaling coefficient for adversarial loss.
lambda_mel (float): Loss scaling coefficient for mel spectrogram loss.
lambda_feat_match (float): Loss scaling coefficient for feat match loss.
lambda_dur (float): Loss scaling coefficient for duration loss.
lambda_kl (float): Loss scaling coefficient for KL divergence loss.
cache_generator_outputs (bool): Whether to cache generator outputs.
"""
assert check_argument_types()
super().__init__()
# define modules
generator_class = AVAILABLE_GENERATERS[generator_type]
if generator_type == "vits_generator":
# NOTE(kan-bayashi): Update parameters for the compatibility.
# The idim and odim is automatically decided from input data,
# where idim represents #vocabularies and odim represents
# the input acoustic feature dimension.
generator_params.update(vocabs=idim, aux_channels=odim)
self.generator = generator_class(
**generator_params,
)
discriminator_class = AVAILABLE_DISCRIMINATORS[discriminator_type]
self.discriminator = discriminator_class(
**discriminator_params,
)
self.generator_adv_loss = GeneratorAdversarialLoss(
**generator_adv_loss_params,
)
self.discriminator_adv_loss = DiscriminatorAdversarialLoss(
**discriminator_adv_loss_params,
)
self.feat_match_loss = FeatureMatchLoss(
**feat_match_loss_params,
)
self.mel_loss = MelSpectrogramLoss(
**mel_loss_params,
)
self.kl_loss = KLDivergenceLoss()
# coefficients
self.lambda_adv = lambda_adv
self.lambda_mel = lambda_mel
self.lambda_kl = lambda_kl
self.lambda_feat_match = lambda_feat_match
self.lambda_dur = lambda_dur
# cache
self.cache_generator_outputs = cache_generator_outputs
self._cache = None
# store sampling rate for saving wav file
# (not used for the training)
self.fs = sampling_rate
# store parameters for test compatibility
self.spks = self.generator.spks
self.langs = self.generator.langs
self.spk_embed_dim = self.generator.spk_embed_dim
def __init__(
self,
# generator related
idim: int,
odim: int,
sampling_rate: int = 22050,
generator_type: str = "jets_generator",
generator_params: Dict[str, Any] = {
"adim": 256,
"aheads": 2,
"elayers": 4,
"eunits": 1024,
"dlayers": 4,
"dunits": 1024,
"positionwise_layer_type": "conv1d",
"positionwise_conv_kernel_size": 1,
"use_scaled_pos_enc": True,
"use_batch_norm": True,
"encoder_normalize_before": True,
"decoder_normalize_before": True,
"encoder_concat_after": False,
"decoder_concat_after": False,
"reduction_factor": 1,
"encoder_type": "transformer",
"decoder_type": "transformer",
"transformer_enc_dropout_rate": 0.1,
"transformer_enc_positional_dropout_rate": 0.1,
"transformer_enc_attn_dropout_rate": 0.1,
"transformer_dec_dropout_rate": 0.1,
"transformer_dec_positional_dropout_rate": 0.1,
"transformer_dec_attn_dropout_rate": 0.1,
"conformer_rel_pos_type": "latest",
"conformer_pos_enc_layer_type": "rel_pos",
"conformer_self_attn_layer_type": "rel_selfattn",
"conformer_activation_type": "swish",
"use_macaron_style_in_conformer": True,
"use_cnn_in_conformer": True,
"zero_triu": False,
"conformer_enc_kernel_size": 7,
"conformer_dec_kernel_size": 31,
"duration_predictor_layers": 2,
"duration_predictor_chans": 384,
"duration_predictor_kernel_size": 3,
"duration_predictor_dropout_rate": 0.1,
"energy_predictor_layers": 2,
"energy_predictor_chans": 384,
"energy_predictor_kernel_size": 3,
"energy_predictor_dropout": 0.5,
"energy_embed_kernel_size": 1,
"energy_embed_dropout": 0.5,
"stop_gradient_from_energy_predictor": False,
"pitch_predictor_layers": 5,
"pitch_predictor_chans": 384,
"pitch_predictor_kernel_size": 5,
"pitch_predictor_dropout": 0.5,
"pitch_embed_kernel_size": 1,
"pitch_embed_dropout": 0.5,
"stop_gradient_from_pitch_predictor": True,
"generator_out_channels": 1,
"generator_channels": 512,
"generator_global_channels": -1,
"generator_kernel_size": 7,
"generator_upsample_scales": [8, 8, 2, 2],
"generator_upsample_kernel_sizes": [16, 16, 4, 4],
"generator_resblock_kernel_sizes": [3, 7, 11],
"generator_resblock_dilations": [[1, 3, 5], [1, 3, 5], [1, 3, 5]],
"generator_use_additional_convs": True,
"generator_bias": True,
"generator_nonlinear_activation": "LeakyReLU",
"generator_nonlinear_activation_params": {"negative_slope": 0.1},
"generator_use_weight_norm": True,
"segment_size": 64,
"spks": -1,
"langs": -1,
"spk_embed_dim": None,
"spk_embed_integration_type": "add",
"use_gst": False,
"gst_tokens": 10,
"gst_heads": 4,
"gst_conv_layers": 6,
"gst_conv_chans_list": [32, 32, 64, 64, 128, 128],
"gst_conv_kernel_size": 3,
"gst_conv_stride": 2,
"gst_gru_layers": 1,
"gst_gru_units": 128,
"init_type": "xavier_uniform",
"init_enc_alpha": 1.0,
"init_dec_alpha": 1.0,
"use_masking": False,
"use_weighted_masking": False,
},
# discriminator related
discriminator_type: str = "hifigan_multi_scale_multi_period_discriminator",
discriminator_params: Dict[str, Any] = {
"scales": 1,
"scale_downsample_pooling": "AvgPool1d",
"scale_downsample_pooling_params": {
"kernel_size": 4,
"stride": 2,
"padding": 2,
},
"scale_discriminator_params": {
"in_channels": 1,
"out_channels": 1,
"kernel_sizes": [15, 41, 5, 3],
"channels": 128,
"max_downsample_channels": 1024,
"max_groups": 16,
"bias": True,
"downsample_scales": [2, 2, 4, 4, 1],
"nonlinear_activation": "LeakyReLU",
"nonlinear_activation_params": {"negative_slope": 0.1},
"use_weight_norm": True,
"use_spectral_norm": False,
},
"follow_official_norm": False,
"periods": [2, 3, 5, 7, 11],
"period_discriminator_params": {
"in_channels": 1,
"out_channels": 1,
"kernel_sizes": [5, 3],
"channels": 32,
"downsample_scales": [3, 3, 3, 3, 1],
"max_downsample_channels": 1024,
"bias": True,
"nonlinear_activation": "LeakyReLU",
"nonlinear_activation_params": {"negative_slope": 0.1},
"use_weight_norm": True,
"use_spectral_norm": False,
},
},
# loss related
generator_adv_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"loss_type": "mse",
},
discriminator_adv_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"loss_type": "mse",
},
feat_match_loss_params: Dict[str, Any] = {
"average_by_discriminators": False,
"average_by_layers": False,
"include_final_outputs": True,
},
mel_loss_params: Dict[str, Any] = {
"fs": 22050,
"n_fft": 1024,
"hop_length": 256,
"win_length": None,
"window": "hann",
"n_mels": 80,
"fmin": 0,
"fmax": None,
"log_base": None,
},
lambda_adv: float = 1.0,
lambda_mel: float = 45.0,
lambda_feat_match: float = 2.0,
lambda_var: float = 1.0,
lambda_align: float = 2.0,
cache_generator_outputs: bool = True,
):
"""Initialize JETS module.
Args:
idim (int): Input vocabrary size.
odim (int): Acoustic feature dimension. The actual output channels will
be 1 since JETS is the end-to-end text-to-wave model but for the
compatibility odim is used to indicate the acoustic feature dimension.
sampling_rate (int): Sampling rate, not used for the training but it will
be referred in saving waveform during the inference.
generator_type (str): Generator type.
generator_params (Dict[str, Any]): Parameter dict for generator.
discriminator_type (str): Discriminator type.
discriminator_params (Dict[str, Any]): Parameter dict for discriminator.
generator_adv_loss_params (Dict[str, Any]): Parameter dict for generator
adversarial loss.
discriminator_adv_loss_params (Dict[str, Any]): Parameter dict for
discriminator adversarial loss.
feat_match_loss_params (Dict[str, Any]): Parameter dict for feat match loss.
mel_loss_params (Dict[str, Any]): Parameter dict for mel loss.
lambda_adv (float): Loss scaling coefficient for adversarial loss.
lambda_mel (float): Loss scaling coefficient for mel spectrogram loss.
lambda_feat_match (float): Loss scaling coefficient for feat match loss.
lambda_var (float): Loss scaling coefficient for variance loss.
lambda_align (float): Loss scaling coefficient for alignment loss.
cache_generator_outputs (bool): Whether to cache generator outputs.
"""
assert check_argument_types()
super().__init__()
# define modules
generator_class = AVAILABLE_GENERATERS[generator_type]
generator_params.update(idim=idim, odim=odim)
self.generator = generator_class(
**generator_params,
)
discriminator_class = AVAILABLE_DISCRIMINATORS[discriminator_type]
self.discriminator = discriminator_class(
**discriminator_params,
)
self.generator_adv_loss = GeneratorAdversarialLoss(
**generator_adv_loss_params,
)
self.discriminator_adv_loss = DiscriminatorAdversarialLoss(
**discriminator_adv_loss_params,
)
self.feat_match_loss = FeatureMatchLoss(
**feat_match_loss_params,
)
self.mel_loss = MelSpectrogramLoss(
**mel_loss_params,
)
self.var_loss = VarianceLoss()
self.forwardsum_loss = ForwardSumLoss()
# coefficients
self.lambda_adv = lambda_adv
self.lambda_mel = lambda_mel
self.lambda_feat_match = lambda_feat_match
self.lambda_var = lambda_var
self.lambda_align = lambda_align
# cache
self.cache_generator_outputs = cache_generator_outputs
self._cache = None
# store sampling rate for saving wav file
# (not used for the training)
self.fs = sampling_rate
# store parameters for test compatibility
self.spks = self.generator.spks
self.langs = self.generator.langs
self.spk_embed_dim = self.generator.spk_embed_dim
