plotwav accepts an audio clip as its first argument and optionally a range in form range=[m,n] or range=a..b as its second argument, where m, n are integers and a, b are real numbers. The command displays the waveform on the specified range (by default in its entirety). It is assumed that the values m, n are in sample units and a, b in seconds.
For example, assume that the directory sounds contains two files, example1.wav (a man speaking, stereo) and example2.wav (guitar playing, mono). Input:
Output:
Input:
Output:
Input:
Output: