How to identify the number of filter banks in MFCC calculation?

[KRISHNA CHAUHAN]

I have used all the default parameters of librosa to calculate the MFCC feature for a 2-second audio chunk. Now how to know the number of filter banks used here. Please give a formula for the same.

Regards

[Brian McFee]

The defaults for mfcc and melspectrogram are well documented: https://librosa.org/doc/latest/generated/librosa.feature.mfcc.html#librosa.feature.mfcc  https://librosa.org/doc/latest/generated/librosa.filters.mel.html#librosa.filters.mel .  It's not clear from your question which number you're asking about though.