Baudline is a time-frequency browser designed for scientific visualization 
of the spectral domain.  Signal analysis is performed by Fourier, 
correlation, and raster transforms that create colorful spectrograms with 
vibrant detail.  Conduct test and measurement experiments with the built in 
function generator, or play back audio files with a multitude of effects and 
filters.  The baudline signal analyzer combines fast digital signal 
processing, versatile high speed displays, and continuous capture tools 
for hunting down and studying elusive signal characteristics. 

Baudline is only available in binary format. There is an included
baudline_jack client which can make use of the jack audio connection
kit.

Note: Baudline requires the use of the AOSS wrapper from alsa-oss to
be able to use sound without jack. The desktop file already has this
provision.