welchogram(fs, wav, nswin=262144, overlap=131072.0, nperseg=512)¶
Computes a spectrogram on a very large audio file.
- fs – sampling frequency (Hz)
- wav – wav signal (vector or memmap)
- nswin – n samples of the sliding window
- overlap – n samples of the overlap between windows
- nperseg – n samples for the computation of the spectrogram
tscale, fscale, downsampled_spectrogram