What graphs / visuals can be generated from audio files? Is there a command-line utility to generate said visual?
I found the following:
Waveform : ffmpeg is able to generate a waveform
Spectrogram : sox can make a spectrogram
Any CLI tool for audio analysis could be useful as well. Basically anything that'll give me more information than duration, bitrate, format, channels, sample rate, bit/sample.
My operating system is Windows 7. Solutions for other platforms are accepted. (just precise what os the solution is aimed at)