-out &lt;backend&gt;</code></td>
  <td>Use the specified audio-output backend.</td>
  <td>&nbsp;</td>
</tr>
<!--<tr>
  <td><code>-mic &lt;device or file&gt;</code></td>
  <td>Use device or WAV file for audio input.</td>
  <td>&nbsp;</td>
</tr>
-->
<tr>
  <td><code>-noaudio</code></td>
  <td>Disable audio support in the current emulator instance.</td>
  <td>&nbsp;</td>
</tr>
<tr>
  <td><code>-radio &lt;device&gt;</code></td>
  <td>Redirect radio modem interface to a host character device.</td>
  <td>&nbsp;</