Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: is there an optical equalizer?

  1. #1
    Low Bitrate ketchup318's Avatar
    Join Date
    Jan 2005
    Location
    Monterey Park, CA
    Posts
    92

    is there an optical equalizer?

    hi all, i have a problem with my setup. I'm currently using a completely optical setup. I have my carputer connected to a SB Audigy2 NX, and from there, and optical cable to my PG 5.1MT amp. The problem i have is that i'm getting high frequency sound and can't get rid of it. I've tried the SB equalizer and it doesn't work. It's like 8 bands, with the highest being like 8k. It's really giving me a headache.

    I do have a normal equalizer, but i figure it's a waste to put that into my setup. Is there an optical equalizer i can get? Is there any other solutions? Thanks
    AMD 1700 & Abit VA-10 w/ 512Mb PC3200 Corsair Ram
    60GB 7200rpm HD - Opus 150W PS - Lilliput 7" TS
    Panasonic Slot DVD - SD Audigy NX 2
    Phoenix Gold 5.1 MT Amp - 2 USB Hubs
    Hauppauge WinTv USB2 - Holux GPS - Belkin Bluetooth

  2. #2
    2nz
    2nz is offline
    Newbie 2nz's Avatar
    Join Date
    Nov 2003
    Location
    SoCal
    Posts
    11
    ketchup318
    If I were you I would locate the source of that high freq. An eq shouldn't be the only option you have. I ran an SB 5.1 live w/Alpine 510 EQ 48kHz optical input to changer port and then out to multiple amps - extremely quiet noise floor in my '65 Mustang. Now I have Firewire output to M-Audio 1814 which in turn is Optical input to changer port on the 510 and very little noise and only on right channel when car is running - not sure why the noise but very faint and does not increase with volume.

    So, make sure your SB is configured with the right freq for the fibre optic ie 44.1/48 kHz. DON'T use cheap fiber optic cable - can cause problems like data loss and maybe the problem your having. I did a fiber optic interface to a stock MB 500 system for an ipod and the fiber optic ends weren't even flat and smooth/polished and there were all sorts of noises in there. When I filed it flat and polished it the system worked fine. When I first set up the new system in my car I ran a good quality fiber optic to the trunk - as I bought a cheapie and didn't like what I saw once out of the package. Anyways, some weeks latter I tried using it to connect 1814 to 510 in the trunk cause that's all I had that night and it wouldn't even pass a signal = no sound!
    So make sure you have the best fiber optic cable you can afford and see if that works.

    If you have any more information let me know.

    2nz

  3. #3
    Low Bitrate ketchup318's Avatar
    Join Date
    Jan 2005
    Location
    Monterey Park, CA
    Posts
    92
    well i don't think that there's really any configuring that i can do that i haven't done. There's sound quality settings, but nothing like what you are talking about 44.1/48kHz settings. I kinda wish there was, but i've looked everywhere to see what settings i can tweak. No luck

    as for the type of optical cable, i'm using a shielded monster cable. I don't know how good it is, but it works fine. I yanked it from my home audio system.
    AMD 1700 & Abit VA-10 w/ 512Mb PC3200 Corsair Ram
    60GB 7200rpm HD - Opus 150W PS - Lilliput 7" TS
    Panasonic Slot DVD - SD Audigy NX 2
    Phoenix Gold 5.1 MT Amp - 2 USB Hubs
    Hauppauge WinTv USB2 - Holux GPS - Belkin Bluetooth

  4. #4
    Variable Bitrate therussman2002's Avatar
    Join Date
    Mar 2004
    Location
    Milwaukee, WI
    Posts
    391
    eq's/filters are bandaids for problems that you can get rid of at the source.. just gotta guess-and-check with grounds and such to find it i suppose

  5. #5
    2nz
    2nz is offline
    Newbie 2nz's Avatar
    Join Date
    Nov 2003
    Location
    SoCal
    Posts
    11
    OK - monster cable should be better than you need. Make sure no dirt/dust/debris blocking the light path at either end.

    Since the SB device is USB you may want to unplug ALL other devices running on USB to see if it cleans up - maybe the freq of rotating USB IOs is the freq you hear, don't know.

  6. #6
    Low Bitrate ketchup318's Avatar
    Join Date
    Jan 2005
    Location
    Monterey Park, CA
    Posts
    92
    i know that i should try fixing things at the source, but i'm just wondering if i can't get it working the way i want, is there an optical input/output equalizer out there on the market, or is it all done through RCA's
    AMD 1700 & Abit VA-10 w/ 512Mb PC3200 Corsair Ram
    60GB 7200rpm HD - Opus 150W PS - Lilliput 7" TS
    Panasonic Slot DVD - SD Audigy NX 2
    Phoenix Gold 5.1 MT Amp - 2 USB Hubs
    Hauppauge WinTv USB2 - Holux GPS - Belkin Bluetooth

  7. #7
    Maximum Bitrate
    Join Date
    Jun 2004
    Location
    Bay Area, California
    Posts
    654
    orion 97.2

    31 band digital grpahic EQ with optical in and optical out.

    good luck!

  8. #8
    FLAC sdashiki's Avatar
    Join Date
    Aug 2004
    Location
    Floreeda
    Posts
    1,085
    sure its not engine noise whine? is it still there when the car is off?
    (All done)
    iPad Mini 128GB, RF 600.5 amp, JL12W0V2, 8 Infinity Components

  9. #9
    Low Bitrate ketchup318's Avatar
    Join Date
    Jan 2005
    Location
    Monterey Park, CA
    Posts
    92
    yeah i'm sure it's not engine noise. with an optical setup, i didn't think that was even possible.
    AMD 1700 & Abit VA-10 w/ 512Mb PC3200 Corsair Ram
    60GB 7200rpm HD - Opus 150W PS - Lilliput 7" TS
    Panasonic Slot DVD - SD Audigy NX 2
    Phoenix Gold 5.1 MT Amp - 2 USB Hubs
    Hauppauge WinTv USB2 - Holux GPS - Belkin Bluetooth

  10. #10
    I'm sorry, and you are....? frodobaggins's Avatar
    Join Date
    Jan 2003
    Location
    Ruston, LA
    Posts
    8,846
    Quote Originally Posted by ketchup318
    yeah i'm sure it's not engine noise. with an optical setup, i didn't think that was even possible.
    its analog at the end, always possible.
    [H]4 Life
    My next generation Front End is right on schedule.
    It will be done sometime in the next generation.
    I'm a lesbian too.
    I am for hire!

Page 1 of 2 12 LastLast

Similar Threads

  1. diy usb audio with optical in / out
    By Raas in forum Off Topic
    Replies: 5
    Last Post: 05-01-2008, 03:03 AM
  2. equalizer
    By psych0sys in forum Software & Software Development
    Replies: 4
    Last Post: 03-25-2008, 07:25 PM
  3. Splicing and terminating optical cables
    By Vinister in forum General Hardware Discussion
    Replies: 4
    Last Post: 04-26-2005, 01:13 AM
  4. MP3+ USB Optical Input
    By cletus323 in forum Car Audio
    Replies: 6
    Last Post: 02-08-2005, 03:53 PM
  5. Aux. input adapter vs equalizer
    By Dima in forum General Hardware Discussion
    Replies: 1
    Last Post: 09-13-2000, 10:46 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
  •