# sox > Sound eXchange: play, record and convert audio files. > Audio formats are identified by the extension. > More information: . - Merge two audio files into one: `sox -m {{path/to/input_audio1}} {{path/to/input_audio2}} {{path/to/output_audio}}` - Trim an audio file to the specified times: `sox {{path/to/input_audio}} {{path/to/output_audio}} trim {{start}} {{duration}}` - Normalize an audio file (adjust volume to the maximum peak level, without clipping): `sox --norm {{path/to/input_audio}} {{path/to/output_audio}}` - Reverse and save an audio file: `sox {{path/to/input_audio}} {{path/to/output_audio}} reverse` - Print statistical data of an audio file: `sox {{path/to/input_audio}} -n stat` - Increase the volume of an audio file by 2x: `sox -v 2.0 {{path/to/input_audio}} {{path/to/output_audio}}`