• rufus@discuss.tchncs.de
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    11 months ago

    I don’t think we can tell from just a picture of the plugs. These are definitely two 3.5mm stereo jacks, colored headphone and mic. Maybe have a look at the manual? Or type the model number into Google? Or use a multimeter and measure the resistance.

      • 0x4E4F@infosec.pub
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        11 months ago

        What do you mean by stereo wire? It’s got 3 contacts on the 3.5mm jack, that’s enough to transfer analog stereo (GND, L, R).

          • 0x4E4F@infosec.pub
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            11 months ago

            It’s for bias to the mic. Condenser mics need it to apply bias to one of the leads of the mic so it can amplify the sound before sending it to the input of the card. Some mics don’t require that (self-biased) so in that case, the R pin (middle ring) goes to GND.

              • 0x4E4F@infosec.pub
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                11 months ago

                The link doesn’t open, says connection refused 🤷.

                Regardless, if it doesn’t require the bias pin, the mic is self-biased or biased through another source (use the same wire for the signal to get bias, this is easy, you just use a cap to decouple the signal from the bias).