AudioDelete

AudioDelete[audio,t] deletes the first t seconds of audio.

AudioDelete[audio,-t] deletes the last t seconds of audio.

AudioDelete[audio,{t1,t2}] deletes from time t1 to time t2, returning the remaining audio as a single Audio object.

AudioDelete[audio,{{t11,t12},…}] deletes multiple time intervals.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.