Real-time audio capture and playback from an external mic
<p>How can I capture audio from an external mic plugged in the 3.5mm jack and play it back in real-time to the phone speaker?</p>

<p>I'm able to capture the audio from that source, save it to a file and play it then to the speaker. However, when I try to mix the things, the audio is being captured from the in-built microphone.</p>

<p>Any ideas?</p>
