[sdiy] Single chip digital delay

Andre Majorel amajorel at teaser.fr
Tue Jan 24 13:15:41 CET 2006


On 2006-01-24 11:54 +0000, Seb Francis wrote:

> On the subject of delays.. I've been wanting to build a simple digital 
> delay (or two) for the purpose of making a wide stereo image .. e.g. 
> hard pan the original sound to one side and hard pan a few ms delay of 
> the sound to the other side.
> 
> The delay needs to be clean and accurate (so BBDs are out!), and the 
> delay time doesn't need to be very long.  I guess what I need is 
> something like a good quality single chip digital delay.  Anybody know 
> of something suitable?

There's Ryan Williams' VC-echo based on the PT239x :

  http://www.sdiy.org/destrukto/vc-echo.html

Ryan says the PT2396 can go down to 12 ms. But for realistic
stereo placement, you want 0.5 ms or less.

-- 
André Majorel <amajorel at teaser.fr>
http://www.teaser.fr/~amajorel/



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