CN11: Headset -- why a normal 3.5mm mobile phone headset does NOT work?

Discussion in 'UDOO BOLT' started by hhtmp88, Aug 31, 2019.

  1. hhtmp88

    hhtmp88 UDOOer

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    Dear all,

    I have just tried to connect CN11, the headset connector, with my 3.5mm Huawei mobile phone headset

    but...
    it's weired that it cannot fully plugged into CN11 and the earphone CANNOT hear any sound,
    however, the microphone does work!

    What's wrong?
    Thanks for any kinds of help!
     
  2. ccs_hello

    ccs_hello UDOOer

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    I plugged in amplified headphone unit to that 3.5mm receptacle and it is working fine. I.e., the signal level needs an Amp.
     
  3. Yetii

    Yetii New Member

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    What OS are you using? I had a similar issue on Manajro KDE which I resolved by disabling auto-mute mode in alsamixer.
     
  4. hhtmp88

    hhtmp88 UDOOer

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    can you plug the 3.5mm plug (it's a plug into the receptacle, right?) fully into CN11 receptacle?

    Thanks!
     
  5. ccs_hello

    ccs_hello UDOOer

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    Sorry my earlier report was on CN12 connector, which is near the HDMI output.
    Now I check the CN12, which is near the USB 3.0 connector....

    Yes, it works fine on my headphone. The 3.5mm plug cannot get all the way in.
    Actually, the last contact (the "Ring") will have to have the metallic contact with the jack's shiny meta (and tiny)l contact piece, in the outside.
     
  6. ccs_hello

    ccs_hello UDOOer

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    Typo.
    My second line should read:
    Now I check the CN11, which is near the USB 3.0 connector....
     
  7. ccs_hello

    ccs_hello UDOOer

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    My OS is Win10.
     
  8. hhtmp88

    hhtmp88 UDOOer

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    Dear all,

    I confirm that CN12, TRS headphone + S/PDIF, works properly with my Huawei 3.5mm mobile phone headset, I can hear the music in my headset

    However, for CN11, the TRRS audio combo socket, NOT working, no sound can be heard (but the Mic, does work)
    -- it is found that Win10 does not detect it

    So any Extra driver required to make it work?
     
  9. hhtmp88

    hhtmp88 UDOOer

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    Can CN11 works properly in your side?

    i.e. you can
    * hear music thru your mobile headset
    * and record voice thru the microphone of your headset
     
  10. ccs_hello

    ccs_hello UDOOer

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    The audio device is "High Definition Audio Device" under Win10 and is using the Microsoft driver.
    Under TRRS arrangement:
    Headphone volume is fine (I think it is not the low impedance type, perhaps 40 ohm.) 8 ohm one is a bit low on sound level.
    Microphone volume is very low but is functional.
     

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