nnAudio

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I am working on multi-channel sEMG signal. Is there possible if the API can be applied on the multi-channel signal in shape (n_channels, n_samples) to produce STFT data in shape...

visionbike

Spectrograms not updating well at low frequency bins

3

Hello, Thanks for putting in place a really useful library! I'm working on the pneumonia detection problem. My dataset is super imbalanced, with 2000+ non-pneumonia cases and 142 cases, but...

arachid1

STFT Reconstruction from Mel Spectrograms

4

I've been playing around with trying to reconstruct an STFT spectrogram from a Mel spectrogram (derived using the `MelSpectrogram` class) and wondered if you might be interested in incorporating something...

tasercake

Mel_Basis kernel

1

Hello! While training my model, I used MelSpectrogram function and realized that after few epochs(15-10), the mel basis(mel filterbank) are stuck and donot change at all. I even tried increasing...

gunikavashisht13472

CQT doesn't work on waveforms on short chunks like 0.5s

2

CQT doesn't work on waveforms on short chunks. Is this something expected?

kkp15

[Feature Request] Allow STFT kernels to be normalized

3

I think it will be nice to have normalization tools for STFT kernels (they exist in CQT in the forward pass with the parameter normalization_type) in order to control the...

Manza12

Learnable Window

3

Could you please elaborate why you have not used Learnable_window in STFT , Mel Spectrograms and MFCC but used in their inverse counterparts?

gunikavashisht13472

RuntimeError: Exporting the operator col2im to ONNX opset version 12 is not supported

5

hi, i convert the stft model to onnx version , but a error is raised. ''' RuntimeError: Exporting the operator col2im to ONNX opset version 12 is not supported. Please...

didadida-r

Spectrogram.iSTFT backward very slow

19

Setting: Spectrogram.iSTFT(n_fft=1024, win_length=1024, freq_bins=None, hop_length=300, fmax=7600, fmin=80, sr=24000, trainable_window=False, trainable_kernels=False, verbose=False) I used Spectrogram.iSTFT convert spectrograms back to waveforms, most batch backward is faster, but sometimes backward is very slow...

ABC0408

Is Gammatone invertible?

2

turian