另,python中可以用librosa调包得到梅尔声谱图。 (2)假设现在用10个Mel filterbank(一些论文会用40个,如果求MFCC一般是用26个然后在最后取前13个),为了获得filterbanks需要选择一个lower频率和upper频率,用300作为lower,8000作为upper是不错的选择。如果采样率是8000Hz那么upper频率应该限制为4000。然后用公式把lower和...
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Using LogMel Spectrograms to detect cough in audio samples using a CNN - GitHub - walkitalki/CoughCNN: Using LogMel Spectrograms to detect cough in audio samples using a CNN
Source File: log_spectrogram.py From espnet with Apache License 2.0 6 votes def forward( self, input: torch.Tensor, input_lengths: torch.Tensor ) -> Tuple[torch.Tensor, torch.Tensor]: # 1. Stft: time -> time-freq input_stft, feats_lens = self.stft(input, input_lengths) assert ...
melspeciv FOA multichannel log-mel spectrograms + intensity vector 7 linspeciv FOA multichannel log-linear spectrograms + intensity vector 7 melspecgcc MIC multichannel log-mel spectrograms + GCC-PHAT 10 linspecgcc MIC multichannel log-linear spectrograms + GCC-PHAT 10 SALSA FOA multichannel log...