title: Which /dev/... (devices) are the microphone and speaker in Mac OS X?
body: <p>I have a MacBook Alluminium and I want to capture the microphone in a RAW format and output a RAW audio through the speakers, in a <strong>standard</strong> way, i.e., using the terminal with <strong>standard</strong> Unix commands and using the <strong>standard</strong> /dev/??? devices.</p>
  
  <p>So, the question/s:</p>
  
  <ul>
  <li><p>Which devices are the microphone and speakers? Those both should start with /dev/...</p></li>
  <li><p>Are they different if they are built-in or external? Which ones?
  (Also they have to start with /dev/...)</p></li>
  </ul>
  
  <p>If you know also the unix commands to print the microphone input and to write the output for speakers that would be extra points! :) (I want to capture it from mic, modify it -I got it-, and send it modified to speakers)</p>
  
  <p>If you know also the Assembly instructions for OSX that would be the perfection! <strong>But the main questions are which are in the bulleted list.</strong></p>
  
  <p>Thanks!</p>