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Old 14th February 2006, 12:18 AM   #1
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Location: Redmond, WA
Question Combining digital Coax Signals

I'm so far in over my head on this...
I have two audio sources and one input destination. I think in theory it i think it should be possible to reverse a Y splitter and feed both Digital Coax signals into the single destination resulting in a "merged" sound.

I fear a few things...that i won't get a merged sound but instead a kind of staticy white noice; That the input signals will in some way overload the recieving item; that ther is no standard for the polarity of digital coax outputs and that i'll jsut create a circuit and burn something out.

Would you guys mind giving me some thoughts on expected results as well as a means of accomplishing the underlying goal of getting two sources into one place without having to manually switch them.

thanks
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Old 14th February 2006, 04:10 AM   #2
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Default Re: Combining digital Coax Signals

Quote:
Originally posted by Darkeyce
I'm so far in over my head on this...
I have two audio sources and one input destination. I think in theory it i think it should be possible to reverse a Y splitter and feed both Digital Coax signals into the single destination resulting in a "merged" sound.
Not in theory and definitely not in practice. Digital signals cannot be combined in the same manner as analogue signals.

Quote:

I fear a few things...that i won't get a merged sound but instead a kind of staticy white noice; That the input signals will in some way overload the recieving item; that ther is no standard for the polarity of digital coax outputs and that i'll jsut create a circuit and burn something out.
Would you guys mind giving me some thoughts on expected results as well as a means of accomplishing the underlying goal of getting two sources into one place without having to manually switch them.

thanks
No merged sound, just noise. If it is a case of automatically selecting the active feed, the front end, or a simplified version of it, of gmarsh's headphone amp will do. My latest project - DAC + headphone amp
If, OTOH, you want to mix two active feeds then you will need a digital mixer of some sort.
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Old 14th February 2006, 07:29 AM   #3
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Join Date: Feb 2006
Location: Redmond, WA
Argh...

Thanks for the clarification...now that you said it and i think about it a bit...merging two digital datastreams doesn't make much sense does it ?


I'll need to find a simple digital mixer to handle the two active sources.

Thanks for the help...I'll resume lurking now.
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