Signal Processing using C++ (SPUC)
Sample code for the Motorola DSP56Fxxx
The MathWorks - DSP/Communication Design Demos
DSP-C.org
Blackfin Open Source Koop
Introducing EngineerZone, where DSP engineers go for answers
Freescale (Metrowerks) Demo Downloads
IT++
Digital Signal Processing at Rice University
TMS320C[34]x DSP GNU Tools
Java Digital Signal Processing
120-day FREE trial of Code Composer Studio
Signalogic Demo Request
FlowDesigner
Free DSP Software
Gedae - Software Development Productivity Tool for Signal Processing
Gigaview SA - Signal Integrity Software
ScopeDSP Download (Shareware)
Mathwizards - Shareware Page
Sound Processing Kit Home Page
Numerix free software and application notes