[LAU] RME analog out of phase to ADAT connected Behringer analog out

[Raffaele Morelli]

2011/6/14 Ralf Mardorf <ralf.mardorf at alice-dsl.net>

> On Mon, 2011-06-13 at 09:14 -0400, Paul Davis wrote:
> > On Sun, Jun 12, 2011 at 10:37 PM, Ralf Mardorf
> > <ralf.mardorf at alice-dsl.net> wrote:
> > > Hi,
> > >
> > > I made a sound check, that isn't a valid test, just a test to get a
> > > coarse impression, but it's positive that for the 'RME analog out /
> ADAT
> > > out test' the signals were out of phase.
> >
> > I have no idea why you would expect two analog signal paths with
> > independent D/A conversion would ever be in phase.
>
> Thanks, that was what I wanted to know, so it's not broken. I didn't
> expect that, I was told that when synced "NOTHING" would differ. I
> claimed that I don't believe this and seemingly I didn't mistake. It's
> important to be aware of this ;).
>
> > I also have no idea how or why you are doing a test that involves
> > playing a PCM file in one case and apparently playing an audio CD in a
> > CD player in the other.
>
> No valid test, just a test to hear, if at least the sound quality of a
> (less good?) CD player is reached, fortunately it is reached, even with
> the elCheapo Terratec, 44.1 KHz it's quasi equal for the RME, Terratec,
> the CD player, when listening by the Behringer console. But when using
> Totem (no jackd) the sound differs, which doesn't mean that the sound
> quality is less good or better, the sound is different. Again, this
> isn't a valid test, regarding to the abilities of e.g. the RME card. It
> was a test to ensure that the sound quality won't get more worse, than
> the worst sound quality of my home equipment. The most worse equipment I
> own and use is the Pinoeer CD player and the Behringer mixing console.
> The less good sound quality is at the border to what I can stand,
> anything less good I can't stand. Even with best equipment I can't stand
> 44.1 KHz very long, for e.g. synth music, of course I'm able to listen
> to old blues recordings that are terribly broken, because of the soul by
> this music, but for e.g. synth music I need 48 Khz at a quality given by
> Sony equipment, my Terratec sound card e.g. can't provide this sound
> quality, even not at 96 KHz. I don't know why, at least I suspect the
> analog op-amps as being bad.
>
> Regards,
>
> Ralf
>

then, what's the need for those invalid tests? :)
moreover, I would not say old blues recordings are terribly broken, 192Khz
super-ultra-mega-super-funky AD/DC to analog converters won't save if the
music you are playing/recording with is... brokenù
:)

regards
-r




-- 
*L'unica speranza di catarsi, ammesso che ne esista una, resta affidata
all'istinto di ribellione, alla rivolta non isterilita in progetti, alla
protesta violenta e viscerale.*
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