Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Optical Out Volume Q

  1. #1
    Variable Bitrate
    Join Date
    Aug 2005
    Posts
    422

    Optical Out Volume Q

    Just a qick question. If your passing your sound from your CarPC via Optical then you cannot controle volume on the carPC correct.

    Does this mean you can no longer mix on the carpc. For instance GPS voice speaks over lowered volume music. Is everything passed from the carPC at the same volume?

    Cheers

  2. #2
    Constant Bitrate Lazyflip's Avatar
    Join Date
    Mar 2005
    Location
    FL
    Posts
    148
    I have an optical on a laptop and I can control volume via Windows.

  3. #3
    Variable Bitrate
    Join Date
    Aug 2005
    Posts
    422
    How is that possible? I thought you could only adjust an analog signal?

  4. #4
    Constant Bitrate Lazyflip's Avatar
    Join Date
    Mar 2005
    Location
    FL
    Posts
    148
    I'm not really too sure. I have a Sound Blaster X-Fi for notebooks. I was curious to about the optical out feature so I got a 3.5mm to optical adapter and played a DVD. It outputs 5.1 DTS and the volume is adjustable within windows.

  5. #5
    Low Bitrate slinkytoy's Avatar
    Join Date
    Mar 2007
    Location
    Colorado
    Posts
    97
    It's and optical analog signal you can adjust it no problem. I have an creative labs laptop card that uses optical output and i can adjust the volume no problem

  6. #6
    Variable Bitrate
    Join Date
    Aug 2005
    Posts
    422
    Quote Originally Posted by slinkytoy View Post
    It's and optical analog signal you can adjust it no problem. I have an creative labs laptop card that uses optical output and i can adjust the volume no problem
    All soundcards are analog over optical?

  7. #7
    Low Bitrate
    Join Date
    Jan 2007
    Posts
    97
    every optical source I've used (sound cards, car head units) have had the ability to adjust volume over optical.

  8. #8
    Variable Bitrate
    Join Date
    Nov 2007
    Posts
    359
    Here goes.

    All soundcards are analog over optical?
    No. All soundcards send a digital signal over optical.

    If your PC is decoding audio to PCM then you can adjust the colume over optical.

    If you PC is streaming compressed audio (DD or DTS) then volume cannont be adjusted.

    However if you PC decodes DD/DTS to PCM adjusts the volume, then re-encodes to DD/DTS voluem adjustment over SPDIF (optical/digital co-ax) will still work.

  9. #9
    Variable Bitrate
    Join Date
    Aug 2005
    Posts
    422
    Im going to be outputting it into a Alping H701. Will i still be able to control volume from the PC? I don't know what happens to that PCM signal inside the H701

  10. #10
    Variable Bitrate
    Join Date
    Nov 2007
    Posts
    359
    It doesn't matter what happens to the PCM inside the 701 as the PC can be considered the master volume. But for the record it takes the digital signal - does what ever processing you've setup, rund it through a DAC, and then through a pre-amp.

    However be aware that controlling the volume in the digital domain requires "bit shaving" which if not executed correctly can reduce the quality of sound. Also if using PCM over optical you will be limited to 2 channels of audio between the PC and the 701.

    Where as I expect the volume control within the 701 work in the analog domain in it's pre-amp section.

Page 1 of 2 12 LastLast

Similar Threads

  1. Volume problem with RR.
    By Outsider787 in forum Road Runner
    Replies: 3
    Last Post: 08-01-2007, 01:45 AM
  2. Enhanced Volume Control
    By XxAndyxX in forum Software & Software Development
    Replies: 15
    Last Post: 06-12-2007, 08:25 PM
  3. Road Runner Volume Issues ! ! !
    By rewindnottm in forum Road Runner
    Replies: 8
    Last Post: 03-20-2007, 03:38 AM
  4. Replies: 6
    Last Post: 02-20-2007, 02:13 PM
  5. Request: Winamp volume
    By froop in forum Road Runner
    Replies: 2
    Last Post: 06-07-2006, 02:04 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •