Sonic Visualiser is an application for viewing and analysing the
contents of music audio files.
The aim of Sonic Visualiser is to be the first program you reach for
when want to study a musical recording rather than simply listen to
it.
As well as a number of features designed to make exploring audio data
as revealing and fun as possible, Sonic Visualiser also has powerful
annotation capabilities to help you to describe what you find, and the
ability to run automated annotation and analysis plugins in the Vamp
analysis plugin format – as well as applying standard audio effects.