This KDE app is intended for tuning instruments.  The DSP code was adapted from a tutorial on pitch-scaling.  Most work on hounddog has halted, as Calliope will soon incorporate similar features.  You will need KDE, Qt,and the fftw libraries.

Download: i686 RPM source RPM tarball


Calliope is intended to be a sandbox for small to medium sized audio applications.  The core of Calliope is a framework of Python classes which provide a simple API for managing audio I/O, file formats, and common DSP operations.  The basic interface is in a similar spirit to Trillium's Cooledit and snd.  Python and pygtk were chosen for a combination of rapid development and extensibility.  Calliope is currently in early development.  Interested developers please email for more details or a current tarball.