Signals and Systems Using MATLAB

SSUM (Signals and Systems Using MATLAB) is a continually expanding suite
of exploratory demonstrations and applications. It demonstrates essential principles
and concepts of MSP without requiring advanced mathematics. To use SSUM,
MATLAB (matrix laboratory) must be installed as well as the signal processing
toolbox.

SSUM currently has 37 programs illustrating concepts of wave forms, modulation,
sampling and interpolation, aliasing, the frequency domain, convolution and
filtering, pole-zero diagrams, analysis and synthesis, signal features, and many
others. Many of these are applicable to sounds and images. There are also
demonstrations of curious topics such as sound cross synthesis, reverberation
using all-pass filters, additive synthesis of birdsong, sine wave speech synthesis,
and modeling of musical instruments.

SSUM is perfect for use in lectures, labs, and assignments. All SSUM programs
are wrapped in GUIs, so there is no need for typing unwieldy commands at the
prompt. Many of the applications are integrated as well. For instance, if one is
creating a waveform in an application, it can be sent to another application for
filtering, and to another to see its frequency content.

SSUM uses and extends the programming style used in the excellent “MATLAB
Auditory Demonstrations” application. Modularizing the code and keeping the
GUI separate from the functionality makes SSUM much more manageable.
When a new application is desired, it is quite easy to copy and reuse the functionality.