hrough OpenAL.
</p>
<p>You need to specify the name of the device to capture in the provided
filename. If the empty string is provided, the device will
automatically select the default device. You can get the list of the
supported devices by using the option <var>list_devices</var>.
</p>
<a name="Options-2"></a>
<h3 class="subsection"><a href="ffmpeg-devices.html#toc-Options-2">3.16.1 Options</a></h3>

<dl compact="compact">
<dt>&lsquo;<samp>channels</samp>&rsquo;</dt>
<dd><p>Set the number of channels in t