Binary package “squishyball” in ubuntu bionic
audio sample comparison testing tool
squishyball is a simple command-line utility for performing
double-blind A/B, A/B/X or X/X/Y (A/B/X with additional sample order
randomisation) testing of audio samples on the command line.
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The user specifies two input files to be compared and uses the
keyboard during playback to flip between the randomized samples to
perform on-the-fly comparisons. After a predetermined number of
trials, squishyball prints the trial results to stdout and exits.
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squishyball can be used to help establish what lossy audio codec
settings are optimal for a particular combination of user and
audio equipment.