Coax Digital Audio - Two Outputs Into One Receiver Input

Discussion in 'Home Theater Projects' started by John_ryr, Apr 9, 2003.

  1. John_ryr

    John_ryr Auditioning

    Joined:
    Apr 8, 2003
    Messages:
    7
    Likes Received:
    0
    Hi, relative newbie that has been browsing this forum for a few weeks now, but have yet to find an answer to a problem I have. I recently bought a new sony (STR DE885) receiver which has ONE coax digital audio output. The DVD player is currently connected to that (No optical output from DVD) but I would like to also use the coax digital audio output from my digital cable into the reciever. Any suggestions for this. I know that parts express has a coax/optical converter, which would then require me to buy both cables. Could I just pruchase a really good Y connector (2 female to 1 male) and feed both to the same input?

    Thanks!
     
  2. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
  3. John_ryr

    John_ryr Auditioning

    Joined:
    Apr 8, 2003
    Messages:
    7
    Likes Received:
    0
    Thanks Armand.
    What type of A/B switch did you use, if any? I'd rather stay away from an A/B switch unless I can get one I can control remotely (IR) via my Philips Pronto.

    Does anyone know if a Y-connector would work??
     
  4. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    I don't use either of them. I'd also rather not use a switch but until now I don't know what the consequence is when using a Y splitter. I just posted the question this week hoping for anyone who can explain what happens when using a Y splitter. I am very curious you know.

    I think we just have to wait for someone who can explain a little concerning the two options.
     
  5. John_ryr

    John_ryr Auditioning

    Joined:
    Apr 8, 2003
    Messages:
    7
    Likes Received:
    0
    Maybe next time I will look when your original post was made - I did not realize it was only two days ago!

    It seems that many people have veiwed the thread, so maybe someone can respond to it.

    Also isn't dolby digital and AC-3 one and the same? I think we are talking about the same type of cabling here.
     
  6. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    No problem.

    They are not quite the same. Dolby Digital can be 1.0, 2.0 .... 5.1. AC-3 what it was called in the laserdisc days, I am still a huge fan btw. AC-3 stands for 5.1 audio. In other words a LD encoded with AC-3 contains almost always 5.1 audio. Offcourse there are some exceptions.

    When dvd was introduced there was a lot of confusion over dvd's containing Dolby Digital. People were automatically under the impression that DD=5.1. Not. When they played there discs at home they noticed that a lot of them were only DD 2.0..

    Regards,
    Armand
     
  7. Michael Reuben

    Michael Reuben Studio Mogul

    Joined:
    Feb 12, 1998
    Messages:
    21,763
    Likes Received:
    2
     
  8. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    Michael,

    That's what I meant. I know it means audio codec 3. What I meant was that AC-3 equals 5.1 audio. Sorry that I wasn't to clear on the subject.
     
  9. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    Do you know if it's allright to use a Y splitter?
     
  10. Michael Reuben

    Michael Reuben Studio Mogul

    Joined:
    Feb 12, 1998
    Messages:
    21,763
    Likes Received:
    2
     
  11. John_ryr

    John_ryr Auditioning

    Joined:
    Apr 8, 2003
    Messages:
    7
    Likes Received:
    0
    OK. Enough of the definitions. The burning question is whether a splitter can be used for coax digital audio.

    Any comments??
     
  12. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    You're probably right. The last thing I want to say about it is that a lot of people are confused concerning DD and AC-3.

    Can you help us with our dilemma?
     
  13. Michael Reuben

    Michael Reuben Studio Mogul

    Joined:
    Feb 12, 1998
    Messages:
    21,763
    Likes Received:
    2
     
  14. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    Ok. I guess the only way to tell for certain is to buy a splitter and test it.

    I hoped since, there are a lot of enthusiasts on the forum, that one of them had tried this already or compared it to a switch.
     
  15. John_ryr

    John_ryr Auditioning

    Joined:
    Apr 8, 2003
    Messages:
    7
    Likes Received:
    0
    looks like I'm off to the store, possibly tonight...
     
  16. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    Please let me know what your experiences are, since you'll have the splitter before I do.
     
  17. Neil Joseph

    Neil Joseph Lead Actor

    Joined:
    Jan 16, 1998
    Messages:
    8,332
    Likes Received:
    1
    Real Name:
    Neil Joseph
    There's no doubt that it will work. The real question is are there any consequences in doing so. Just make sure you don't output both signals at the same time. Even though the voltages are fairly low, by having two signals at the same time, you will get doubling of voltages and I am sure that this is not recommended. Why take chances?
     
  18. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    Thanks. Your remark is noted.
     
  19. John_ryr

    John_ryr Auditioning

    Joined:
    Apr 8, 2003
    Messages:
    7
    Likes Received:
    0
    Well, I bought a coaxial digital cable and a splitter. I hooked up the cables, but with failed results. See, the coax in on my receiver is marked DVD/LD in. I think I would have to reconnect my cable's s-video to the DVD connection each time for it to work correctly.

    Looks like I'm going with the coax-to-optical piece on parts express, which means one of each cable...
     
  20. Armand G

    Armand G Stunt Coordinator

    Joined:
    Oct 18, 2000
    Messages:
    151
    Likes Received:
    0
    Sorry to hear that John. I think I am going to use one LD player for AC-3 and the other one for DTS. I that case I don't have to use a switch or a splitter.

    Good luck!

    Regards,
    Armand
     

Share This Page