Re: [LAU] Testing sync with 2 sound cards

On Mon, Mar 03, 2008 at 10:54:25AM -0800, Mark Knecht wrote:

> I think this sounds like a better solution. I would personally look
> for a way to treat the audio information as data, calculate the the
> expected data from each card and then do a comparison of input and
> output data mathematically. I would not personally want to trust
> either my eyes or ears in this area. Let the operation of the hardware
> speak for itself.

One way to test for exact sync is to use jdelay, with an analog
loopback from an output on card A to an input on card B.
Let it run as long as you can and verify if the delay is stable.

Ciao,

-- 
FA
Laboratorio di Acustica ed Elettroacustica
Parma, Italia
Lascia la spina, cogli la rosa.
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