sox

SoX - Sound eXchange. Play, record and convert audio files. Audioformats are identified by extension.

Merge two audio files into one:

sox -m {{input_audiofile1}} {{input_audiofile2}} {{output_audiofile}}

Trim an audio file to the specified times:

sox {{input_audiofile}} {{output_audiofile}} trim {{start}} {{end}}

Normalize an audio file (adjust volume to the maximum peak level, without clipping):

sox --norm {{input_audiofile}} {{output_audiofile}}

Reverse and save an audio file:

sox {{input_audiofile}} {{output_audiofile}} reverse

Print statistical data of an audio file:

sox {{input_audiofile}} -n stat