Sonogram transformates time-domain based audio information (samples) into the frequency domain using the transformation methods of "Fast Fourier...
Sonogram transformates time-domain based audio
information (samples) into the frequency domain
using the transformation methods of "Fast
Fourier Transformation" (FFT), "Linear Prediction
Coecients" (LPC), "Cepstral Analysis" and
the "Wavelet transformation".
from multimedia les and daws them into the main
window which shows the frequency information
in a two-dimensional form (frequency-time area).
The most common audio and video le formats
are supported. The two-dimensional plots can be
shown in an interactive three-dimensional representation.
Many signal analysis parameters can
be con gured and the representation can be con-
gured in dierent forms. The program is written
in Java2 therefore it runs on any operating system
where Java2, is supported. Calculated pictures
can be stored as \Scalable Vector Graphics"
(SVG) and bitmaps. It has a build-in documentation
which describe most of software components.
The program can be free used for non comercial
and research purposes.