Help with soundcard

Discussion in 'PC Audio' started by C.Y, Nov 19, 2020.

  1. C.Y

    C.Y Member

    Joined:
    Jun 11, 2020
    Messages:
    68
    Hi All

    I don't know if this should be in the trouble shooting section or in the sound section ... but I put it here to hopefully get some help with an issue I can't seem to solve.

    Background
    - Purchased a generic 5.1 PCIe from ebay (CMI8738)
    - Intention is to run 4 bass shakers from 2 amps for sim racing
    - One set from the "front output" and one set from the "rear output"
    - My understanding is using a separate sound card to run the bass shakers is the best option as it does not interfere with the audio sound for the game.

    Issue
    - (Main) There seems to be no sound / signal coming out from the "rear output"
    - (Sub issue) One of the front speakers has a constant signal in that it would have an output every second. Keeping in mind its a bass transducer .. so its thump thump thump. Its not loud / heavy but rather soft.

    Trouble Shooting
    - When I test the rear speakers out on the "front output" they work
    - When I test the front speakers out on the "front output" it works (but one has the thumping noise / signal as described in the "issue" point above)
    - Neither work on the "rear output"
    - I have tested with headphones using the windows generic test.
    * Using the below settings, on the "front output" I get 4 chimes
    * I get nothing using the "rear output"

    upload_2020-11-19_22-15-50.png
    - I have tried various trouble shooting video's on youtube to no avail.
    - Below is the software (Simhub) that runs the transducers with the sim. I had an interesting scenario where when I clicked "Channel 1 & 3" the same transducer would engage, but nothing else would happen on "Channel 2 & 4".
    [​IMG]

    Ideal Expectation
    - "Front output" will run front speakers LHS / RHS using one amp.
    - As above but using the "Rear output".

    Request for Help
    - What other options have I missed ?
    - Is the sound card faulty ?
    - Should I try uninstalling and reinstalling drivers again ?

    Your help / feedback would be greatly appreciated.

    Thank you in advance :)
     
  2. ska'

    ska' Member

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  3. OP
    OP
    C.Y

    C.Y Member

    Joined:
    Jun 11, 2020
    Messages:
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    upload_2020-11-20_23-18-50.png upload_2020-11-20_23-19-6.png

    You're referring to this right ??

    Its set on "speakers" which I assume is an analogue signal.

    Anyways i've tried uninstalling and reinstalling 2 different drivers and still it does not work. I'm am discussing with the ebay seller ... but have doubts that they can help me .. hopefully they can just replace with no hassles.

    Thanks
     
  4. woja

    woja Member

    Joined:
    Feb 18, 2004
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    Location:
    Sydney
    have you tried the soundcard with another set of speakers to see if the soundcard is the issue?
     
  5. OP
    OP
    C.Y

    C.Y Member

    Joined:
    Jun 11, 2020
    Messages:
    68
    yeh I tried using headphones and it doesn’t work. Thus I’m learning towards the sound card issue more than speakers / something I have done.

    I will try the sound card in a friends computer to see if it is still happening

    driving me up the wall though
     

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