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import torch | |
from torch import nn | |
from torch.nn import functional as F | |
import modules.attentions as attentions | |
import modules.modules as modules | |
from utils import f0_to_coarse | |
class ResidualCouplingBlock(nn.Module): | |
def __init__(self, | |
channels, | |
hidden_channels, | |
kernel_size, | |
dilation_rate, | |
n_layers, | |
n_flows=4, | |
gin_channels=0): | |
super().__init__() | |
self.channels = channels | |
self.hidden_channels = hidden_channels | |
self.kernel_size = kernel_size | |
self.dilation_rate = dilation_rate | |
self.n_layers = n_layers | |
self.n_flows = n_flows | |
self.gin_channels = gin_channels | |
self.flows = nn.ModuleList() | |
for i in range(n_flows): | |
self.flows.append( | |
modules.ResidualCouplingLayer(channels, hidden_channels, kernel_size, dilation_rate, n_layers, | |
gin_channels=gin_channels, mean_only=True)) | |
self.flows.append(modules.Flip()) | |
def forward(self, x, x_mask, g=None, reverse=False): | |
if not reverse: | |
for flow in self.flows: | |
x, _ = flow(x, x_mask, g=g, reverse=reverse) | |
else: | |
for flow in reversed(self.flows): | |
x = flow(x, x_mask, g=g, reverse=reverse) | |
return x | |
class TextEncoder(nn.Module): | |
def __init__(self, | |
out_channels, | |
hidden_channels, | |
kernel_size, | |
n_layers, | |
gin_channels=0, | |
filter_channels=None, | |
n_heads=None, | |
p_dropout=None): | |
super().__init__() | |
self.out_channels = out_channels | |
self.hidden_channels = hidden_channels | |
self.kernel_size = kernel_size | |
self.n_layers = n_layers | |
self.gin_channels = gin_channels | |
self.proj = nn.Conv1d(hidden_channels, out_channels * 2, 1) | |
self.f0_emb = nn.Embedding(256, hidden_channels) | |
self.enc_ = attentions.Encoder( | |
hidden_channels, | |
filter_channels, | |
n_heads, | |
n_layers, | |
kernel_size, | |
p_dropout) | |
def forward(self, x, x_mask, f0=None, z=None): | |
x = x + self.f0_emb(f0).transpose(1, 2) | |
x = self.enc_(x * x_mask, x_mask) | |
stats = self.proj(x) * x_mask | |
m, logs = torch.split(stats, self.out_channels, dim=1) | |
z = (m + z * torch.exp(logs)) * x_mask | |
return z, m, logs, x_mask | |
class F0Decoder(nn.Module): | |
def __init__(self, | |
out_channels, | |
hidden_channels, | |
filter_channels, | |
n_heads, | |
n_layers, | |
kernel_size, | |
p_dropout, | |
spk_channels=0): | |
super().__init__() | |
self.out_channels = out_channels | |
self.hidden_channels = hidden_channels | |
self.filter_channels = filter_channels | |
self.n_heads = n_heads | |
self.n_layers = n_layers | |
self.kernel_size = kernel_size | |
self.p_dropout = p_dropout | |
self.spk_channels = spk_channels | |
self.prenet = nn.Conv1d(hidden_channels, hidden_channels, 3, padding=1) | |
self.decoder = attentions.FFT( | |
hidden_channels, | |
filter_channels, | |
n_heads, | |
n_layers, | |
kernel_size, | |
p_dropout) | |
self.proj = nn.Conv1d(hidden_channels, out_channels, 1) | |
self.f0_prenet = nn.Conv1d(1, hidden_channels, 3, padding=1) | |
self.cond = nn.Conv1d(spk_channels, hidden_channels, 1) | |
def forward(self, x, norm_f0, x_mask, spk_emb=None): | |
x = torch.detach(x) | |
if (spk_emb is not None): | |
x = x + self.cond(spk_emb) | |
x += self.f0_prenet(norm_f0) | |
x = self.prenet(x) * x_mask | |
x = self.decoder(x * x_mask, x_mask) | |
x = self.proj(x) * x_mask | |
return x | |
class SynthesizerTrn(nn.Module): | |
""" | |
Synthesizer for Training | |
""" | |
def __init__(self, | |
spec_channels, | |
segment_size, | |
inter_channels, | |
hidden_channels, | |
filter_channels, | |
n_heads, | |
n_layers, | |
kernel_size, | |
p_dropout, | |
resblock, | |
resblock_kernel_sizes, | |
resblock_dilation_sizes, | |
upsample_rates, | |
upsample_initial_channel, | |
upsample_kernel_sizes, | |
gin_channels, | |
ssl_dim, | |
n_speakers, | |
sampling_rate=44100, | |
vol_embedding=False, | |
vocoder_name = "nsf-hifigan", | |
**kwargs): | |
super().__init__() | |
self.spec_channels = spec_channels | |
self.inter_channels = inter_channels | |
self.hidden_channels = hidden_channels | |
self.filter_channels = filter_channels | |
self.n_heads = n_heads | |
self.n_layers = n_layers | |
self.kernel_size = kernel_size | |
self.p_dropout = p_dropout | |
self.resblock = resblock | |
self.resblock_kernel_sizes = resblock_kernel_sizes | |
self.resblock_dilation_sizes = resblock_dilation_sizes | |
self.upsample_rates = upsample_rates | |
self.upsample_initial_channel = upsample_initial_channel | |
self.upsample_kernel_sizes = upsample_kernel_sizes | |
self.segment_size = segment_size | |
self.gin_channels = gin_channels | |
self.ssl_dim = ssl_dim | |
self.vol_embedding = vol_embedding | |
self.emb_g = nn.Embedding(n_speakers, gin_channels) | |
if vol_embedding: | |
self.emb_vol = nn.Linear(1, hidden_channels) | |
self.pre = nn.Conv1d(ssl_dim, hidden_channels, kernel_size=5, padding=2) | |
self.enc_p = TextEncoder( | |
inter_channels, | |
hidden_channels, | |
filter_channels=filter_channels, | |
n_heads=n_heads, | |
n_layers=n_layers, | |
kernel_size=kernel_size, | |
p_dropout=p_dropout | |
) | |
hps = { | |
"sampling_rate": sampling_rate, | |
"inter_channels": inter_channels, | |
"resblock": resblock, | |
"resblock_kernel_sizes": resblock_kernel_sizes, | |
"resblock_dilation_sizes": resblock_dilation_sizes, | |
"upsample_rates": upsample_rates, | |
"upsample_initial_channel": upsample_initial_channel, | |
"upsample_kernel_sizes": upsample_kernel_sizes, | |
"gin_channels": gin_channels, | |
} | |
if vocoder_name == "nsf-hifigan": | |
from vdecoder.hifigan.models import Generator | |
self.dec = Generator(h=hps) | |
elif vocoder_name == "nsf-snake-hifigan": | |
from vdecoder.hifiganwithsnake.models import Generator | |
self.dec = Generator(h=hps) | |
else: | |
print("[?] Unkown vocoder: use default(nsf-hifigan)") | |
from vdecoder.hifigan.models import Generator | |
self.dec = Generator(h=hps) | |
self.flow = ResidualCouplingBlock(inter_channels, hidden_channels, 5, 1, 4, gin_channels=gin_channels) | |
self.f0_decoder = F0Decoder( | |
1, | |
hidden_channels, | |
filter_channels, | |
n_heads, | |
n_layers, | |
kernel_size, | |
p_dropout, | |
spk_channels=gin_channels | |
) | |
self.emb_uv = nn.Embedding(2, hidden_channels) | |
self.predict_f0 = False | |
self.speaker_map = [] | |
self.export_mix = False | |
def export_chara_mix(self, speakers_mix): | |
self.speaker_map = torch.zeros((len(speakers_mix), 1, 1, self.gin_channels)) | |
i = 0 | |
for key in speakers_mix.keys(): | |
spkidx = speakers_mix[key] | |
self.speaker_map[i] = self.emb_g(torch.LongTensor([[spkidx]])) | |
i = i + 1 | |
self.speaker_map = self.speaker_map.unsqueeze(0) | |
self.export_mix = True | |
def forward(self, c, f0, mel2ph, uv, noise=None, g=None, vol = None): | |
decoder_inp = F.pad(c, [0, 0, 1, 0]) | |
mel2ph_ = mel2ph.unsqueeze(2).repeat([1, 1, c.shape[-1]]) | |
c = torch.gather(decoder_inp, 1, mel2ph_).transpose(1, 2) # [B, T, H] | |
if self.export_mix: # [N, S] * [S, B, 1, H] | |
g = g.reshape((g.shape[0], g.shape[1], 1, 1, 1)) # [N, S, B, 1, 1] | |
g = g * self.speaker_map # [N, S, B, 1, H] | |
g = torch.sum(g, dim=1) # [N, 1, B, 1, H] | |
g = g.transpose(0, -1).transpose(0, -2).squeeze(0) # [B, H, N] | |
else: | |
if g.dim() == 1: | |
g = g.unsqueeze(0) | |
g = self.emb_g(g).transpose(1, 2) | |
x_mask = torch.unsqueeze(torch.ones_like(f0), 1).to(c.dtype) | |
# vol proj | |
vol = self.emb_vol(vol[:,:,None]).transpose(1,2) if vol is not None and self.vol_embedding else 0 | |
x = self.pre(c) * x_mask + self.emb_uv(uv.long()).transpose(1, 2) + vol | |
z_p, m_p, logs_p, c_mask = self.enc_p(x, x_mask, f0=f0_to_coarse(f0), z=noise) | |
z = self.flow(z_p, c_mask, g=g, reverse=True) | |
o = self.dec(z * c_mask, g=g, f0=f0) | |
return o | |