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Emu XL-7 & MP-7 User's Group

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Re: [xl7] Re: SPDIF Problems (and analog hum)

2004-02-09 by Aaron Eppolito

--- Mike-E <d_jumpmaster@...> wrote:
> 1) Connecting via S/PDIF:
> The signal is weak. It's about half the volume of when using analog

See the myriad posts on this subject.  Short answer?  Normalize is your
friend.
 
> When using internal on the Audiophile, the signal gets disturbed
> (clicks and plops). The trick of grounding the S/PDIF output didn't
> fix it. Am I doing something wrong?

Yes.  As with *ALL* digital systems, there must be one master clock or
else you will get pops.  Since the XL-7 doesn't have a word clock in
jack, you are forced to use the XL-7's clock as the master.

> 2) Connecting analog (main or sub):
> A humming sound is added to the signal. When I close to software 
> mixer of the Audiophile the humming stops, but still leaves a lot of 
> noise en crackles. Totally not acceptable.

This probably is a ground loop issue.  Since I can never get rid of
ground loops either (I'm notoriously bad at solving this problem) I'll
defer to someone else who has knowledge in this area.

-Aaron

PS. I hate me some "disturbed plops"...  =)

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