AudioTrim

AudioTrim[audio] trims silence from the beginning and end of audio.

AudioTrim[audio, t] returns the first t seconds of audio.

AudioTrim[audio, -t] returns the last t seconds of audio.

AudioTrim[audio, {t1, t2}] returns audio starting at time t1 and ending at time t2.

Examples

Trim audio to a specific interval:

audio = ExampleData[{"Audio", "Bird"}];
AudioTrim[audio, {1, 2}]

Please visit the official Wolfram Language Reference for more details.