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Thread: 4CH IN - 4CH OUT USB Soundcard on teensy 4.1

  1. #1
    Junior Member
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    4CH IN - 4CH OUT USB Soundcard on teensy 4.1

    Hi everyone,
    I'll start my project to programming the teensy 4.1 to be apearing as a 4ch sound card.
    Before starting I wanted to know if anyone achieved to transform any teensy on 4ch soundcard or have any advice to achieve that.
    I checked the teensy's code and I think I'll start to look on the usb_audio.cpp or maybe usb_desc.c and usb_desc.h files.
    If someone have any clues it'll be welcomed.

    In the future the teensy will be connected to a codec and will exchange TDM signals.

    Let me know if you have anything.

    Best regards

  2. #2
    Senior Member PaulStoffregen's Avatar
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    Maybe subscribe to this other thread about attempts to go to 8 channels.

    https://forum.pjrc.com/threads/60557...8i80-USB-Audio

  3. #3
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    Hi Paul,
    Thank you for this link it defenitely have some good info inside.
    But he didn't share the code he develloped right ?

    By the way, 8in8o is a little bit much for me because I want to keep space for other datas like sensors.
    So i'll go with 4I4O, I'll post messages of my progression.

  4. #4
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    It appears that the op of that other thread is gone.

  5. #5
    Senior Member PaulStoffregen's Avatar
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    Quote Originally Posted by elromulous View Post
    It appears that the op of that other thread is gone.
    That other thread is still the best place to discuss more-than-stereo USB audio, because everyone who's interested is already following that thread.

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