[sdiy] Video card as audio DSP?

[Magnus Danielson]

From: KA4HJH <ka4hjh at gte.net>
Subject: [sdiy] Video card as audio DSP?
Date: Fri, 3 Sep 2004 18:04:29 -0400
Message-ID: <p05111a03bd5e9ae416b8@[67.200.137.224]>

> Someone's finally gone and done it--turned a video card into an audio DSP
> board:
> 
> http://www.tomshardware.com/hardnews/20040902_135943.html

You can use the matrix transformation of vectors to alot of usefull things.
You could also use the colours in a different way. There are loads of ways to
use up the calculation power. Must stuff is just +, - and * most of the times
anyway, and that's what the graphic cards can do quickly.

But they pointed out what was the obvious problem, pulling the data back out.
There is no reason for you to do that efficiently normally. There is a high-
speed output, but that comes in 3 8-bit DC-shifted signals, not very
audioesque. Toss a few tons of that processing on the task and you got a
2+1 output! :P

Cheers,
Magnus