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154 lines
No EOL
6.9 KiB
Python
154 lines
No EOL
6.9 KiB
Python
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import torch
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from torch import nn
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import torch.nn.functional as F
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import numpy as np
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from utils.layers.limited_adaptive_comb1d import LimitedAdaptiveComb1d
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from utils.layers.limited_adaptive_conv1d import LimitedAdaptiveConv1d
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from utils.layers.td_shaper import TDShaper
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from utils.complexity import _conv1d_flop_count
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from models.nns_base import NNSBase
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from models.silk_feature_net_pl import SilkFeatureNetPL
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from models.silk_feature_net import SilkFeatureNet
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from .scale_embedding import ScaleEmbedding
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class ShapeNet(NNSBase):
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""" Adaptive Noise Re-Shaping """
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FRAME_SIZE=80
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def __init__(self,
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num_features=47,
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pitch_embedding_dim=64,
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cond_dim=256,
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pitch_max=257,
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kernel_size=15,
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preemph=0.85,
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skip=91,
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comb_gain_limit_db=-6,
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global_gain_limits_db=[-6, 6],
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conv_gain_limits_db=[-6, 6],
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numbits_range=[50, 650],
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numbits_embedding_dim=8,
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hidden_feature_dim=64,
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partial_lookahead=True,
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norm_p=2,
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avg_pool_k=4):
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super().__init__(skip=skip, preemph=preemph)
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self.num_features = num_features
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self.cond_dim = cond_dim
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self.pitch_max = pitch_max
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self.pitch_embedding_dim = pitch_embedding_dim
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self.kernel_size = kernel_size
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self.preemph = preemph
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self.skip = skip
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self.numbits_range = numbits_range
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self.numbits_embedding_dim = numbits_embedding_dim
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self.hidden_feature_dim = hidden_feature_dim
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self.partial_lookahead = partial_lookahead
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# pitch embedding
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self.pitch_embedding = nn.Embedding(pitch_max + 1, pitch_embedding_dim)
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# numbits embedding
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self.numbits_embedding = ScaleEmbedding(numbits_embedding_dim, *numbits_range, logscale=True)
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# feature net
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if partial_lookahead:
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self.feature_net = SilkFeatureNetPL(num_features + pitch_embedding_dim + 2 * numbits_embedding_dim, cond_dim, hidden_feature_dim)
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else:
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self.feature_net = SilkFeatureNet(num_features + pitch_embedding_dim + 2 * numbits_embedding_dim, cond_dim)
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# comb filters
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left_pad = self.kernel_size // 2
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right_pad = self.kernel_size - 1 - left_pad
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self.cf1 = LimitedAdaptiveComb1d(self.kernel_size, cond_dim, frame_size=self.FRAME_SIZE, overlap_size=40, use_bias=False, padding=[left_pad, right_pad], max_lag=pitch_max + 1, gain_limit_db=comb_gain_limit_db, global_gain_limits_db=global_gain_limits_db, norm_p=norm_p)
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self.cf2 = LimitedAdaptiveComb1d(self.kernel_size, cond_dim, frame_size=self.FRAME_SIZE, overlap_size=40, use_bias=False, padding=[left_pad, right_pad], max_lag=pitch_max + 1, gain_limit_db=comb_gain_limit_db, global_gain_limits_db=global_gain_limits_db, norm_p=norm_p)
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# spectral shaping
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self.af1 = LimitedAdaptiveConv1d(1, 2, self.kernel_size, cond_dim, frame_size=self.FRAME_SIZE, use_bias=False, padding=[self.kernel_size - 1, 0], gain_limits_db=conv_gain_limits_db, norm_p=norm_p)
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# non-linear transforms
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self.tdshape1 = TDShaper(cond_dim, frame_size=self.FRAME_SIZE, avg_pool_k=avg_pool_k)
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self.tdshape2 = TDShaper(cond_dim, frame_size=self.FRAME_SIZE, avg_pool_k=avg_pool_k)
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self.tdshape3 = TDShaper(cond_dim, frame_size=self.FRAME_SIZE, avg_pool_k=avg_pool_k)
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# combinators
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self.af2 = LimitedAdaptiveConv1d(2, 2, self.kernel_size, cond_dim, frame_size=self.FRAME_SIZE, use_bias=False, padding=[self.kernel_size - 1, 0], gain_limits_db=conv_gain_limits_db, norm_p=norm_p)
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self.af3 = LimitedAdaptiveConv1d(2, 2, self.kernel_size, cond_dim, frame_size=self.FRAME_SIZE, use_bias=False, padding=[self.kernel_size - 1, 0], gain_limits_db=conv_gain_limits_db, norm_p=norm_p)
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self.af4 = LimitedAdaptiveConv1d(2, 1, self.kernel_size, cond_dim, frame_size=self.FRAME_SIZE, use_bias=False, padding=[self.kernel_size - 1, 0], gain_limits_db=conv_gain_limits_db, norm_p=norm_p)
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# feature transforms
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self.post_cf1 = nn.Conv1d(cond_dim, cond_dim, 2)
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self.post_cf2 = nn.Conv1d(cond_dim, cond_dim, 2)
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self.post_af1 = nn.Conv1d(cond_dim, cond_dim, 2)
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self.post_af2 = nn.Conv1d(cond_dim, cond_dim, 2)
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self.post_af3 = nn.Conv1d(cond_dim, cond_dim, 2)
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def flop_count(self, rate=16000, verbose=False):
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frame_rate = rate / self.FRAME_SIZE
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# feature net
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feature_net_flops = self.feature_net.flop_count(frame_rate)
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comb_flops = self.cf1.flop_count(rate) + self.cf2.flop_count(rate)
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af_flops = self.af1.flop_count(rate) + self.af2.flop_count(rate) + self.af3.flop_count(rate) + self.af4.flop_count(rate)
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feature_flops = (_conv1d_flop_count(self.post_cf1, frame_rate) + _conv1d_flop_count(self.post_cf2, frame_rate)
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+ _conv1d_flop_count(self.post_af1, frame_rate) + _conv1d_flop_count(self.post_af2, frame_rate) + _conv1d_flop_count(self.post_af3, frame_rate))
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if verbose:
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print(f"feature net: {feature_net_flops / 1e6} MFLOPS")
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print(f"comb filters: {comb_flops / 1e6} MFLOPS")
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print(f"adaptive conv: {af_flops / 1e6} MFLOPS")
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print(f"feature transforms: {feature_flops / 1e6} MFLOPS")
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return feature_net_flops + comb_flops + af_flops + feature_flops
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def feature_transform(self, f, layer):
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f = f.permute(0, 2, 1)
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f = F.pad(f, [1, 0])
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f = torch.tanh(layer(f))
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return f.permute(0, 2, 1)
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def forward(self, x, features, periods, numbits, debug=False):
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periods = periods.squeeze(-1)
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pitch_embedding = self.pitch_embedding(periods)
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numbits_embedding = self.numbits_embedding(numbits).flatten(2)
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full_features = torch.cat((features, pitch_embedding, numbits_embedding), dim=-1)
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cf = self.feature_net(full_features)
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y = self.cf1(x, cf, periods, debug=debug)
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cf = self.feature_transform(cf, self.post_cf1)
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y = self.cf2(y, cf, periods, debug=debug)
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cf = self.feature_transform(cf, self.post_cf2)
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y = self.af1(y, cf, debug=debug)
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cf = self.feature_transform(cf, self.post_af1)
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y1 = y[:, 0:1, :]
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y2 = self.tdshape1(y[:, 1:2, :], cf)
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y = torch.cat((y1, y2), dim=1)
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y = self.af2(y, cf, debug=debug)
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cf = self.feature_transform(cf, self.post_af2)
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y1 = y[:, 0:1, :]
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y2 = self.tdshape2(y[:, 1:2, :], cf)
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y = torch.cat((y1, y2), dim=1)
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y = self.af3(y, cf, debug=debug)
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cf = self.feature_transform(cf, self.post_af3)
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y1 = y[:, 0:1, :]
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y2 = self.tdshape3(y[:, 1:2, :], cf)
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y = torch.cat((y1, y2), dim=1)
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y = self.af4(y, cf, debug=debug)
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return y |