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I have no idea what I'm doing so please don't scold me.

I would like to learn by doing. I am trying to wire up a dynamic XLR microphone to be used as a microphone input when the RPi is connected to another computer. How can I achieve this? It will ultimately be a controller with a mic input, couple of buttons and potentiometers.

I have bought the gooseneck mic, an XLR socket, the ADS1115 16Bits 4 Channel ADC. I have a Raspberry Pi 3B+, a Raspberry Pi Zero W and was also thinking if it could all work on a RPi Pico. Any help greatly appreciated and clearly this will need much more research so any recommendations for courses or books that would help such a project is welcome. Thanks!

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  • \$\begingroup\$ What has your research into the nature of the signals transported via XLR yielded so far? What is your current approach? It feels a bit much to ask for recommendations at this point. Generally, you are trying to build a sound card. That's harder than it sounds to do as well as even cheap commercially available soundcards do, so you're clearly having a reason that you forgot to tell us why you're doing this the hard way! \$\endgroup\$ – mmmm Apr 8 at 12:11
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    \$\begingroup\$ Get yourself a audio usb dongle from the local music shop. The ads115 is not the best choice for audio. If you want really cheap, then get a $1 usb sound card from the ebays. You’ll need an audio transformer to convert balanced to unbalanced. The microphone might need phantom power - you can buy boxes for that as well. \$\endgroup\$ – Kartman Apr 8 at 12:13
  • \$\begingroup\$ The idea was to use XLR so I could build a port so that the mic could be replaced conveniently. I was going to add the usb soundcard so that the user could plug in their headpones/mic/combi. I want the mic to be a gooseneck coming out of the controller, and preferably replacable \$\endgroup\$ – Lukas Urban Apr 8 at 12:54
  • \$\begingroup\$ It is unclear what you want to do. What is a ‘controller’ in this context? Let’s assume you have the microphone and it connects tothe radpi via a usb soundcard. What next? What does the raspi do? \$\endgroup\$ – Kartman Apr 8 at 13:42
  • \$\begingroup\$ I am trying to build an interpreter's console for a meeting platform. The interpreter's panel on the platform has keyboard shortcuts so could be good enough just to simulate keystrokes for the prototype but I have access to the backend as well. The only example I have is what KUDO done link. A computer would need to recognise it as a mic input at least and then control volumes, functions, have a headphone jack \$\endgroup\$ – Lukas Urban Apr 8 at 13:58

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