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bizarre sound quality issue on first boot

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  • bizarre sound quality issue on first boot

    I have been having an infuriating problem when I boot up my carputer. I plug in my fuse tap to boot the computer, but I almost always get this horrible sound quality issue. The sound pops, hisses, cracks, slows down, and just generaly sounds hideous. I leave the fuse tap inserted and tell the carputer to reset from the start menu, and 7 times out of ten, once it boots back up the sound is perfect. Sometimes it takes two reboots, but it always sounds fine after doing this. This tells me my amp settings are not to blame. What could possibly be causing this?

  • #2
    I bought a usb sound card and the problem is not resolved. Could this be amp settings, even though it sounds fine after rebooting?


    • #3
      What more information do I need to add to get some help with this? Should I make a video?

      Now with my new USB sound card sometimes it boots up and doesn't play any sound at all, I'll reboot and everything will go back to normal. Other times it just cracks at the top end of the sound, I'll reboot and everything will be back to normal.

      Somebody help me with this, please.


      • #4
        I don't have a lot of experience with these issues, but troubleshooting is a good place to start.

        Some steps to narrow in on the problem:

        1. Try using a laptop or mp3 player to run sound direct into the amp. This will comfirm if the problem is with the carpc or elsewhere in the system.

        2. Try running the car pc with a standard PSU plugged into an extension cord and see if the problem persists. This will check if power/grounding is causing the issue.

        If the problem is present in step 2 but not 1 I would try reinstalling windows/sound drivers. If that doesn't do the trick, consider swapping the motherboard (or under odd circumstance perhaps the ram) and verify the problem is still present. If it persists through a MB swap I'd suggest pulling all no essential components from the buiild (extra ram, extra fans, any pci cards, etc). That should narrow down the trouble component.

        If the problem is not present in 1 or 2 I'd first try a different ground point for the psu (perhaps a line direct to the battery neg for testing purposes). If that doesn't fix the issue, swap the psu, it is your problem component.

        Hope it gives you some place to start... sorry I don't know more about these specific issues to point u towards the most likely source of the problem!