Delete models.py
Browse files
models.py
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import torch
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import torch.nn as nn
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import torch.nn.functional as F
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class ResBlock1(nn.Module):
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def __init__(self, channels, kernel_size, dilation):
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super(ResBlock1, self).__init__()
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self.convs1 = nn.ModuleList([
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nn.utils.weight_norm(nn.Conv1d(channels, channels, kernel_size, 1, dilation=dilation[0],
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padding=self.get_padding(kernel_size, dilation[0]))),
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nn.utils.weight_norm(nn.Conv1d(channels, channels, kernel_size, 1, dilation=dilation[1],
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padding=self.get_padding(kernel_size, dilation[1]))),
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nn.utils.weight_norm(nn.Conv1d(channels, channels, kernel_size, 1, dilation=dilation[2],
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padding=self.get_padding(kernel_size, dilation[2])))
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])
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self.convs2 = nn.ModuleList([
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nn.utils.weight_norm(nn.Conv1d(channels, channels, kernel_size, 1, dilation=1,
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padding=self.get_padding(kernel_size, 1))),
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nn.utils.weight_norm(nn.Conv1d(channels, channels, kernel_size, 1, dilation=1,
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padding=self.get_padding(kernel_size, 1))),
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nn.utils.weight_norm(nn.Conv1d(channels, channels, kernel_size, 1, dilation=1,
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padding=self.get_padding(kernel_size, 1)))
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])
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def get_padding(self, kernel_size, dilation):
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return int((kernel_size * dilation - dilation) / 2)
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def forward(self, x):
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for c1, c2 in zip(self.convs1, self.convs2):
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xt = F.leaky_relu(x, 0.1)
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xt = c1(xt)
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xt = F.leaky_relu(xt, 0.1)
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xt = c2(xt)
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x = xt + x
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return x
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class Generator(nn.Module):
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def __init__(self, config):
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super(Generator, self).__init__()
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self.num_kernels = len(config["resblock_kernel_sizes"])
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self.num_upsamples = len(config["upsample_rates"])
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self.conv_pre = nn.utils.weight_norm(
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nn.Conv1d(config["model_in_dim"], config["upsample_initial_channel"], 7, 1, padding=3)
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)
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resblock = ResBlock1
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self.ups = nn.ModuleList()
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self.resblocks = nn.ModuleList()
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for i, (u, k) in enumerate(zip(config["upsample_rates"], config["upsample_kernel_sizes"])):
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self.ups.append(
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nn.utils.weight_norm(
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nn.ConvTranspose1d(
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config["upsample_initial_channel"] // (2 ** i),
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config["upsample_initial_channel"] // (2 ** (i + 1)),
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k, u, padding=(k - u) // 2
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)
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)
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)
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for j in range(self.num_kernels):
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self.resblocks.append(
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resblock(
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config["upsample_initial_channel"] // (2 ** (i + 1)),
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config["resblock_kernel_sizes"][j],
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config["resblock_dilation_sizes"][j]
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)
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)
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self.conv_post = nn.utils.weight_norm(
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nn.Conv1d(config["upsample_initial_channel"] // (2 ** self.num_upsamples), 1, 7, 1, padding=3)
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)
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def forward(self, x):
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x = self.conv_pre(x)
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for i in range(self.num_upsamples):
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x = F.leaky_relu(x, 0.1)
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x = self.ups[i](x)
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xs = None
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for j in range(self.num_kernels):
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idx = i * self.num_kernels + j
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xt = self.resblocks[idx](x)
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xs = xt if xs is None else xs + xt
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x = xs / self.num_kernels
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x = F.leaky_relu(x)
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x = self.conv_post(x)
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x = torch.tanh(x)
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return x
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