Hello all, I use a mac and always have done, I’ve built an cross platform app and I’m having a problem regarding audio feedback on PC’s.

The app requires that you are able to hear a microphone input out of your speakers, however when you start the app up it is imperative that the built in microphone is not selected as this causes immediate feedback. I want to automatically assign inputs and outputs that avoid feedback, defaulting to the microphone jack input where possible. On the mac this is easy, I select "Built-in Input" and "Built-in Output", ensuring that "Built-in microphone" is not selected. I know that pretty much any mac that opens the program will have inputs and outputs that are named in this way so I set up this type of default. On PC’s obviously things are a little different!

My question then, is it possible to identify which microphone is built into the computer and which is the audio jack input automatically? If this is not possible, I have noticed that "none" is an optional input device on the PC’s I have used, do all PC’s have "none" as an input option? If so I could default to that and avoid the immediate feedback issue and then leave it up to users to go through the list and discover the built in mic for themselves.

Thanks in advance!