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  4. TIL there are PCIe Sound cards (such as the one pictured, a ASUS XONAR_AE) that are actually two devices glued together, a PCIe USB card, and a USB Sound card.

TIL there are PCIe Sound cards (such as the one pictured, a ASUS XONAR_AE) that are actually two devices glued together, a PCIe USB card, and a USB Sound card.

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  • benjojo@benjojo.co.ukB This user is from outside of this forum
    benjojo@benjojo.co.ukB This user is from outside of this forum
    benjojo@benjojo.co.uk
    wrote last edited by
    #1

    TIL there are PCIe Sound cards (such as the one pictured, a ASUS XONAR_AE) that are actually two devices glued together, a PCIe USB card, and a USB Sound card.

    I cannot tell if this is incredibly stupid (this is obviously sub-optimal), or incredibly smart (this will not have any driver issues)

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    manawyrm@chaos.socialM 1 Reply Last reply
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    • benjojo@benjojo.co.ukB benjojo@benjojo.co.uk

      TIL there are PCIe Sound cards (such as the one pictured, a ASUS XONAR_AE) that are actually two devices glued together, a PCIe USB card, and a USB Sound card.

      I cannot tell if this is incredibly stupid (this is obviously sub-optimal), or incredibly smart (this will not have any driver issues)

      Link Preview Image
      manawyrm@chaos.socialM This user is from outside of this forum
      manawyrm@chaos.socialM This user is from outside of this forum
      manawyrm@chaos.social
      wrote last edited by
      #2

      @benjojo You'll also need to be very careful with the hardware design with such a thing -> USBs physical layer isn't quite symmetrical, frames are separated by pulling both D- and D+ to the same potential. Because USB frames are sent at 1 (or 8 for USB HS) kHz, you'll get a weird high-pitched noise if you have any leakage/interference from the USB lines at all.

      I'm sure most people reading this have heard it before but probably didn't know why: https://0xstubs.org/understanding-usb-microphone-whine/

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