unify the length of frames for several wave files

hi everybody I record 5 sec for several person, then i remove the silent places, Now I want to unify the lengths of these frames again, I hear that there is a function can unify the lenght of these frames to speceific number for example 125 frames

Answer 1

[Jan]

You can crop the longer signals, you can pad the shorter signals with zeros, you can interpolate all signals using different algorithms, you can decimate the signals. So please explain what you want with more details.

What does "frames" mean here? Sound signals with 125 elements are very short.

[Abdulkareem]

sir by frames i mean block which contain 256 elements ( i recorded 5 sec wave file with sampling rate 8000 ,then i elemenated the silent places,in the result i need only 4 sec )(4*800/256=125 frames)