On Thu, 06 Nov 2003 20:13:59 -0000
"sfdsdgdsg" <de_haro@...> wrote:

[snip]

> -Sound card Terratec Aureon 5.1 Sky, with Toslink optical input.
Google tells me the 'Sky' is a Via HT based card. I don't know much about that
chipset but maybe it's one of those that resamples digital input.

[snip]

> http://personales.ya.com/deharo/digitalsoundtest.JPG
oooh, nasty :o)

>
> Michel, you say you have done perfect transactions, how have you
> verified that? What hardware have you used? Please, tell me what
> source (CD player, LD, minidisc), what sound card (manufacturer and
> model) and what kind of conections, optical or coaxial. Your
> information is very important for me.
I'm not Michel, but....

I've used a Zoltrix Nightingale and now use a Terratec Aureon *Fun*. Both of
those are CMI based cards (the focus of this group). For each one I verified
the transfers were perfect by recording an audio CD and comparing the waveform
with that grabbed with a CD ripper (from multiple drives for good measure). I
saved the waveforms as raw PCM, stipped the leading 0s using a little perl
script, made the lengths equal then just did a MD5 check on the resulting files.
I've also used a SGI Indy (obviosuly not CMI based) with the same result.

The Zoltrix and Nightinghale tests I did optical->optical, for the Indy I went
Optical->Electrical via a Midiman CO2 convertor.

Duncan