Re: USB to 3.5mm jack audio adapter

On Wed, Sep 09, 2020 at 03:49:21PM +0200, Paul de Weerd wrote:
> Hi all,
>
> As I don't have a microphone to use with my azalia(4) sound card, and
> my webcam only has audio input (no output), I can't use my current
> hardware in firefox to do videoconferencing. So I purchased (what I
> thought was) a USB to audio adapter[1]. This one simply offers a
> 3.5mm jack connector that I would then plug my existing headphones
> into for full duplex audio.
>
> Unfortunately, it doesn't seem to be an actual uaudio(4) device:
>
> uhidev0 at uhub0 port 1 configuration 1 interface 0 "Samsung Electronics Samsung Type-C to 3.5pi gender adapter" rev 2.01/1.33 addr 2
> uhidev0: iclass 3/0, 2 report ids
> uhid0 at uhidev0 reportid 1: input=0, output=63, feature=0
> uhid1 at uhidev0 reportid 2: input=63, output=0, feature=0
>
> Are there uaudio(4) devices that do provide full duplex (TRRS i.e. mic
> plus speakers) behind a 3.5mm jack? Anyone have experience with one
> of these they can recommend? I mean, I have a USB audio device that
> has a 3.5mm jack, but that's output only (TRS, so no microphone).
>

Hi,

Try searching for "TRRS to USB adapter" then check in the detailed
description that:
- it's an "external sound card" for computers (Windows/macOS supported)
- it requires no device driver (means it's USB class-compliant)
- supports 3.5mm "TRRS" headset jacks (what most phones use)