I am looking into the possibilities of recording voice using a Pi. I've spent ages searching the web for suitable gadgets but it seems whatever search terms I put in I'm not getting what I want. I can find loads of audio out stuff that plugs in to USB, and quite a lot of audio recording stuff that plugs in to USB but costs loads and is designed to turn your PC into a 4 track recording studio.
What I actually want is a circuit, that takes the output from a mic, and turns it into digital (MP3 would be nice but not essential as I can get software to do that). Then can plug into either the USB or GPIO. I'm happy to make necessary connectors etc. So far the nearest I can get is a recorder that is self-contained and plugs into USB just like a memory stick to transfer files afterwards. I can pull that apart and make that work possibly by wiring the GPIO to the power and record switches and download the files when it stops. However, you're then stuck with a mic on the device rather than one on a lead.
So does anyone know of any products that would be a bit more suitable to connect to a Pi?

