Subject: Re: Real Time Frequency Shaping From: Rebecca Reich-Kass <rreich(at)ALUM.MIT.EDU> Date: Fri, 29 Oct 2004 14:02:49 -0400Hi Ben, One option is the SigmaDSP, an audio specific DSP processor designed by our group here at Analog Devices. You can purchase the evaluation board for part # AD1940 (eval board part number is EVAL-AD1940EB), which comes with a software GUI that lets you design your own signal flow graphicall. You then compile the code and download it into the DSP. The controls for your blocks are then available in real-time to adjust any parameters (EQ, dynamics processing, etc). The board takes in either analog or SPDIF digital data in, and has analog and SPDIF digital outputs. Digitally the chip has 16 inputs and 16 outputs. I'm not sure if $499 is out of your range, but the software tools are included and are really flexible. Here is the webpage: http://www.analog.com/en/prod/0%2C2877%2CAD1940%2C00.html#price If that link does not work, simply search for AD1940 on www.analog.com. Hope this helps. Best regards, Rebecca -- Rebecca Reich-Kass Product Development Engineer Digital Audio Group Analog Devices, Inc.