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Message

Re: Weak S/PDIF output, known but non supported issue????

2004-02-21 by vibesart

This subject has been discussed quite a bit - and those who know
(Aaron et al) say the S/PDIF signal is 20 bits. A medium-level 20-bit
signal is much better than a medium-level 16 bit signal, meaning that
within the S/PDIF signal as it exists right now there is most likely
13-16 bits of actual data, which is consistant with (and above many)
CD's. (this is my guesstimate re: the XL7, not a statement from E-mu).
The extra headroom in the Xl7, Proteus etc is to allow for the extreme
bumps in volume that the filters (resonance) can cause. That makes
sense and I think you will see that the filters are capable of extreme
boosts in volume.

But my recommendation is: if the S/PDIF sig is bothersome - use the
analog outs. Good D/A's on all the E-mu stuff... and hopefully you
have a good A/D in your setup (if you don't, you should.). You can 
also just record the digital sig as-is and (as Aaron mentioned) -
Normalize, but I assume that you know that.

Bottom line: don't let this interupt your creative flow - get on with
the music!

happy toning,

Ed


--- In xl7@yahoogroups.com, "Mike-E" <d_jumpmaster@y...> wrote:
> AAArrrrgggghhhh!!!! 
> 
> I have tried to reach them by phone since I've posted the message. 
> Several times a day. Everytime I get the voicemail of Monica. 
> 
> Damn Creative!
> 
> 
> --- In xl7@yahoogroups.com, erik_magrini@B... wrote:
> > Thanks for the info!
> > 
> > rEalm
> > 
> > 
> > 
> > 
> > 
> > Mike-E <d_jumpmaster@y...>
> > 02/19/2004 05:40 AM
> > Please respond to xl7
> > 
> >  
> >         To:     xl7@yahoogroups.com
> >         cc: 
> >         Subject:        [xl7] Weak S/PDIF output, known but non 
> supported issue????
> > 
> > 
> > Hello list,
> > 
> > I just talked to Ruud van der Matte who works for Creative/E-mu
in 
> > The Netherlands. I called him about the weak audio coming from
the 
> > S/PDIF output compared to the signal coming form the analog main 
> > output.
> > 
> > The manual sais this is an exact copy from the main output. Well
my 
> > ears and a level meter say it's almost half the Db's in volume.
So, 
> > it's a problem with the S/PDIF implementation the E-mu.
> > 
> > Ruud just talled me that he spoke to David Andersson from 
> Creative/E-
> > mu in Dublin, and he talled him that it's a known issue BUT the 
> > wan't do anything to fix it!
> > 
> > I just called Creative/E-mu to speek to David Andersson myself,
but 
> > I could not reach them. I got the voicemail of Monica and asked
if 
> > the could call me back on this issue. 
> > 
> > Besides that Ruud van der Matte tolled me that the problem with a 
> > disturbed S/PDIF output (grounding) was also a known issue. The 
> last 
> > machines that were released, have a workaround implemented. 
> > 
> > There were small copper plates placed between the top and bottom 
> > cover, so both parts make better contact. That solved the problem 
> on 
> > the disturbed signal but not the weakness of the audio.
> > 
> > I thought you should all know this.
> > 
> > 
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > 
> >  
> > 
> > 
> > 
> > 
> > 
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