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tacotron2
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data_utils.py: adding support for loading mel from disk

load_mel_from_disk
Rafael Valle 2018-05-15 08:42:06 -07:00
parent 2d41ea0682
commit 62d2c8b957
1 changed files with 15 additions and 6 deletions
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21
data_utils.py
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@ -1,4 +1,5 @@
import random import random
import numpy as np
import torch import torch
import torch.utils.data import torch.utils.data
@ -19,6 +20,7 @@ class TextMelLoader(torch.utils.data.Dataset):
self.text_cleaners = hparams.text_cleaners self.text_cleaners = hparams.text_cleaners
self.max_wav_value = hparams.max_wav_value self.max_wav_value = hparams.max_wav_value
self.sampling_rate = hparams.sampling_rate self.sampling_rate = hparams.sampling_rate
self.load_mel_from_disk = hparams.load_mel_from_disk
self.stft = layers.TacotronSTFT( self.stft = layers.TacotronSTFT(
hparams.filter_length, hparams.hop_length, hparams.win_length, hparams.filter_length, hparams.hop_length, hparams.win_length,
hparams.n_mel_channels, hparams.sampling_rate, hparams.mel_fmin, hparams.n_mel_channels, hparams.sampling_rate, hparams.mel_fmin,
@ -35,12 +37,19 @@ class TextMelLoader(torch.utils.data.Dataset):
return (text, mel) return (text, mel)
def get_mel(self, filename): def get_mel(self, filename):
audio = load_wav_to_torch(filename, self.sampling_rate) if not self.load_mel_from_disk:
audio_norm = audio / self.max_wav_value audio = load_wav_to_torch(filename, self.sampling_rate)
audio_norm = audio_norm.unsqueeze(0) audio_norm = audio / self.max_wav_value
audio_norm = torch.autograd.Variable(audio_norm, requires_grad=False) audio_norm = audio_norm.unsqueeze(0)
melspec = self.stft.mel_spectrogram(audio_norm) audio_norm = torch.autograd.Variable(audio_norm, requires_grad=False)
melspec = torch.squeeze(melspec, 0) melspec = self.stft.mel_spectrogram(audio_norm)
melspec = torch.squeeze(melspec, 0)
else:
melspec = torch.from_numpy(np.load(filename))
assert melspec.size(0) == self.stft.n_mel_channels, (
'Mel dimension mismatch: given {}, expected {}'.format(
melspec.size(0), self.stft.n_mel_channels))
return melspec return melspec
def get_text(self, text): def get_text(self, text):