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#1
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"Y" connect two digital outputs
Hello friends,
Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? If this is not a good idea, what else is available? A link to a web page with info would be appreciated. TIA Mike |
#2
Posted to rec.audio.tech
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"Y" connect two digital outputs
ma wrote:
Hello friends, Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? If this is not a good idea, what else is available? A link to a web page with info would be appreciated. TIA Mike It's not advisable, as it won't work! Digital audio does not mix directly, as the signals are not additive. In order to mix two digital signals together you need a digital mixer (sorry, I don't mean to be facetious) which will synchronise the two signals, possibly sample-rate convert, and then mathematically mix them, as well as noise-shaping and reducing back to 16-24 bits. They generally have faders and other controls, not just a digital Y. They are not cheap, well over £1000, $1800. S. |
#3
Posted to rec.audio.tech
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"Y" connect two digital outputs
On Mon, 14 Aug 2006 22:20:54 GMT, "ma" wrote:
Hello friends, Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? It won't damage anything. But it won't work. |
#4
Posted to rec.audio.tech
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"Y" connect two digital outputs
Thanks for the reply.
Well, it is not a secret that I can not afford $1800. But, I really do not want to mix them. I want to hear one or the other, and I do not want to constantly unplug from one and plug in to the other back & forth. If I need to watch a movie from PC, then I want to hear audio from SoundBlaster card, and if I want to watch cable, then the audio need to be from the cable box, but at no time from both at the same time. Is an audio switch available that I can manually switch from one mode to another? If so what is it called? (switch, I assume?) Mike "Serge Auckland" wrote in message ... ma wrote: Hello friends, Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? If this is not a good idea, what else is available? A link to a web page with info would be appreciated. TIA Mike It's not advisable, as it won't work! Digital audio does not mix directly, as the signals are not additive. In order to mix two digital signals together you need a digital mixer (sorry, I don't mean to be facetious) which will synchronise the two signals, possibly sample-rate convert, and then mathematically mix them, as well as noise-shaping and reducing back to 16-24 bits. They generally have faders and other controls, not just a digital Y. They are not cheap, well over £1000, $1800. S. |
#5
Posted to rec.audio.tech
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"Y" connect two digital outputs
Yes, there are digital switches out there. You might search using
switch, digital, audio and/or S/PDIF. Kal On Mon, 14 Aug 2006 23:53:56 GMT, "ma" wrote: Thanks for the reply. Well, it is not a secret that I can not afford $1800. But, I really do not want to mix them. I want to hear one or the other, and I do not want to constantly unplug from one and plug in to the other back & forth. If I need to watch a movie from PC, then I want to hear audio from SoundBlaster card, and if I want to watch cable, then the audio need to be from the cable box, but at no time from both at the same time. Is an audio switch available that I can manually switch from one mode to another? If so what is it called? (switch, I assume?) Mike "Serge Auckland" wrote in message ... ma wrote: Hello friends, Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? If this is not a good idea, what else is available? A link to a web page with info would be appreciated. TIA Mike It's not advisable, as it won't work! Digital audio does not mix directly, as the signals are not additive. In order to mix two digital signals together you need a digital mixer (sorry, I don't mean to be facetious) which will synchronise the two signals, possibly sample-rate convert, and then mathematically mix them, as well as noise-shaping and reducing back to 16-24 bits. They generally have faders and other controls, not just a digital Y. They are not cheap, well over £1000, $1800. S. |
#6
Posted to rec.audio.tech
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"Y" connect two digital outputs
ma wrote: Thanks for the reply. Well, it is not a secret that I can not afford $1800. But, I really do not want to mix them. I want to hear one or the other, and I do not want to constantly unplug from one and plug in to the other back & forth. If I need to watch a movie from PC, then I want to hear audio from SoundBlaster card, and if I want to watch cable, then the audio need to be from the cable box, but at no time from both at the same time. Is an audio switch available that I can manually switch from one mode to another? If so what is it called? (switch, I assume?) Probably any old switch would work. Graham |
#7
Posted to rec.audio.tech
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"Y" connect two digital outputs
Don't think you need a switch as it is already "built-in" in your
receiver via the source selection for the input sound. I've had both a coax & optical "y-ed" at one time for both a stand-alone cd recorder & dvd recorder & laser disc player & dvd player for the configuration of what I wanted to do. My optical "y" was purchased from Radio Shack; my coax "y" was "jury rigged". The receiver's input source selection will only allow the selected source to pass along the audio signals. Still would suggest that the other sources not be sending any signals to the receiver at the same time. Your receiver's manual should also explain how the input source selection work. On 2006-08-14, ma wrote: Thanks for the reply. Well, it is not a secret that I can not afford $1800. But, I really do not want to mix them. I want to hear one or the other, and I do not want to constantly unplug from one and plug in to the other back & forth. If I need to watch a movie from PC, then I want to hear audio from SoundBlaster card, and if I want to watch cable, then the audio need to be from the cable box, but at no time from both at the same time. Is an audio switch available that I can manually switch from one mode to another? If so what is it called? (switch, I assume?) Mike "Serge Auckland" wrote in message ... ma wrote: Hello friends, Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? If this is not a good idea, what else is available? A link to a web page with info would be appreciated. TIA Mike It's not advisable, as it won't work! Digital audio does not mix directly, as the signals are not additive. In order to mix two digital signals together you need a digital mixer (sorry, I don't mean to be facetious) which will synchronise the two signals, possibly sample-rate convert, and then mathematically mix them, as well as noise-shaping and reducing back to 16-24 bits. They generally have faders and other controls, not just a digital Y. They are not cheap, well over £1000, $1800. S. |
#8
Posted to rec.audio.tech
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"Y" connect two digital outputs
"ma" wrote ...
Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? No. It won't work. Unless you seriously make sure you have only one of those sources powered on at any time. (Hint: This is not practical in the Real World) Would this damage any component if it does work? Maybe, but unlikely. If this is not a good idea, what else is available? A link to a web page with info would be appreciated. Any old switch will likely do just fine. For example These from Radio Shack: 15-1217 or 15-1982, likely several others, etc. You may need adapters to use RCA cables, etc. |
#9
Posted to rec.audio.tech
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"Y" connect two digital outputs
On Mon, 14 Aug 2006 20:00:36 -0400, Kalman Rubinson
wrote: Yes, there are digital switches out there. You might search using switch, digital, audio and/or S/PDIF. Actually, any composite video switch will work as well. Kal |
#10
Posted to rec.audio.tech
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"Y" connect two digital outputs
I know what you are talking about.
In my case, all other input sources are taken (TV, VCR, etc.). The only open port is the "AUX" port that is SPDIF, and I want to connect two sources to this port PC digital audio and cable box digital spdif outputs via a "Y" connector. In this case I probably will need a switch. I found some searching the Internet, but nothing appealing so far. Thanks for all those kind people that replied to help. Mike wrote in message ... Don't think you need a switch as it is already "built-in" in your receiver via the source selection for the input sound. I've had both a coax & optical "y-ed" at one time for both a stand-alone cd recorder & dvd recorder & laser disc player & dvd player for the configuration of what I wanted to do. My optical "y" was purchased from Radio Shack; my coax "y" was "jury rigged". The receiver's input source selection will only allow the selected source to pass along the audio signals. Still would suggest that the other sources not be sending any signals to the receiver at the same time. Your receiver's manual should also explain how the input source selection work. On 2006-08-14, ma wrote: Thanks for the reply. Well, it is not a secret that I can not afford $1800. But, I really do not want to mix them. I want to hear one or the other, and I do not want to constantly unplug from one and plug in to the other back & forth. If I need to watch a movie from PC, then I want to hear audio from SoundBlaster card, and if I want to watch cable, then the audio need to be from the cable box, but at no time from both at the same time. Is an audio switch available that I can manually switch from one mode to another? If so what is it called? (switch, I assume?) Mike "Serge Auckland" wrote in message ... ma wrote: Hello friends, Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? If this is not a good idea, what else is available? A link to a web page with info would be appreciated. TIA Mike It's not advisable, as it won't work! Digital audio does not mix directly, as the signals are not additive. In order to mix two digital signals together you need a digital mixer (sorry, I don't mean to be facetious) which will synchronise the two signals, possibly sample-rate convert, and then mathematically mix them, as well as noise-shaping and reducing back to 16-24 bits. They generally have faders and other controls, not just a digital Y. They are not cheap, well over £1000, $1800. S. |
#11
Posted to rec.audio.tech
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"Y" connect two digital outputs
ma wrote:
Thanks for the reply. Well, it is not a secret that I can not afford $1800. But, I really do not want to mix them. I want to hear one or the other, and I do not want to constantly unplug from one and plug in to the other back & forth. If I need to watch a movie from PC, then I want to hear audio from SoundBlaster card, and if I want to watch cable, then the audio need to be from the cable box, but at no time from both at the same time. Is an audio switch available that I can manually switch from one mode to another? If so what is it called? (switch, I assume?) Mike "Serge Auckland" wrote in message ... ma wrote: Hello friends, Is it advisable to "Y" connect digital outputs (Coax digital) of a SoundBlaster Audigy and a cable box (Motorola) together & get the single outlet and connect it to digital input of my surround sound system? Would this damage any component if it does work? If this is not a good idea, what else is available? A link to a web page with info would be appreciated. TIA Mike It's not advisable, as it won't work! Digital audio does not mix directly, as the signals are not additive. In order to mix two digital signals together you need a digital mixer (sorry, I don't mean to be facetious) which will synchronise the two signals, possibly sample-rate convert, and then mathematically mix them, as well as noise-shaping and reducing back to 16-24 bits. They generally have faders and other controls, not just a digital Y. They are not cheap, well over £1000, $1800. S. A switch is no problem. I use exactly that myself to switch between two digital sources. S-PDIF is an extremely rugged signal, and with short domestic cable lengths and using 75 ohm cable, the impedance mismatch due to the switch does not pose a problem. Mixing is difficult, switching is easy. S. |
#12
Posted to rec.audio.tech
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"Y" connect two digital outputs
On Mon, 14 Aug 2006 23:53:56 GMT, "ma" wrote:
But, I really do not want to mix them. I want to hear one or the other, and I do not want to constantly unplug from one and plug in to the other back & forth. So why didn't you say so? Parallel the screens and switch the signal with a simple SPDT switch. If it doesn't work consider something more complicated. But it probably will work. |
#13
Posted to rec.audio.tech
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"Y" connect two digital outputs
This little gadget may be suitable if One of your outputs is optical, It can be used a number of ways. I use one to split the outgoing signal, but it will still work for you I think, so long as you have optical. http://www.m-audio.com/products/en_us/CO2-main.html Dezza. |
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