Is padding, before feature extraction with VGGish, a good practice?
Our padding technique is to find the longest signal (which is loaded
.wav signal), and then, in every shorter signal, put zeros to the size of the longest one. We need to use it because one size of input data is desirable.
Perhaps there is any other techniques you recommend?
The difference between padding before and after the features extraction by accuracy is quite big - more than 20%. Using padding before extraction gives 97% accuracy.
I'd be glad to read your feedback, and explain me why that happens, and tell me if that kind of padding is correct action or is there a better solution.