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force frame_length to be a multiple hop_length

pull/10/head
Eren Golge 2019-08-20 13:22:04 +02:00
parent d99623e285
commit 5ff8544d6a
1 changed files with 3 additions and 1 deletions
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4
utils/audio.py
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@ -113,8 +113,10 @@ class AudioProcessor(object):
def _stft_parameters(self, ): def _stft_parameters(self, ):
"""Compute necessary stft parameters with given time values""" """Compute necessary stft parameters with given time values"""
n_fft = (self.num_freq - 1) * 2 n_fft = (self.num_freq - 1) * 2
factor = self.frame_length_ms / self.frame_shift_ms
assert (factor).is_integer(), " [!] frame_shift_ms should divide frame_length_ms"
hop_length = int(self.frame_shift_ms / 1000.0 * self.sample_rate) hop_length = int(self.frame_shift_ms / 1000.0 * self.sample_rate)
win_length = int(self.frame_length_ms / 1000.0 * self.sample_rate) win_length = int(hop_length * factor)
return n_fft, hop_length, win_length return n_fft, hop_length, win_length
def _amp_to_db(self, x): def _amp_to_db(self, x):