This library provides a Qt widget for visualizing audio waveforms.
It depends on Erik de Castro Lopo's libsndfile and the Qt framework. It has been tested on Linux (kernel version 2.6.31-21) under Gnome with version 4.6 of the Qt framework, but could well function in other environments.
A source archive can be found here.
For build instructions, see the README.txt file contained in the top level directory of the source archive.
1.6.1