pography">
								<div class="lead">
									<p>Selects an audio input device to use. The constraint may be a device id,
										<code>MediaTrackConstraint</code>, <code>MediaStream</code> (containing audio track), or <code>null</code> to
										generate a dummy audio stream. It may also be an <a href="audiotransformdevice.html">AudioTransformDevice</a> to customize the
									constraints used or to apply Web Audio transforms.</p>
								</div>
								<p>The promise will resolve indicating succes