nixpkgs / dfasma - DFasma is free open-source software to compare audio files by time and frequency. The comparison is first visual, using wavforms and spectra. It is also possible to listen to time-frequency segments in order to allow perceptual comparison. It is basically dedicated to analysis. Even though there are basic functionalities to align the signals in time and amplitude, this software does not aim to be an audio editor.
Homepage - http://gillesdegottex.github.io/dfasma/