I know that on the iPhone you can plug in your guitar and other audio devices but can you do this on Android? Can any recording application do this?
The headphone jack of many android devices will accept audio input. A few caveats:
- Audio input using this method is mono only.
- This will vary by device as some may not accept audio input, and others simply don't have headphone jacks. If a particular device came with a headset with a built-in mic, odds are it will accept audio input.
- This method does not support the use of an external mic while recording video.
- You'll need to use a special adapter that will split the input/output of the jack. Something like this or the adapter mentioned here would probably work.
It seems like audio input through USB would be possible, but this feature request suggests it isn't yet implemented.