g junction indicator. The output of the summing junction connects to
a green output desination, labeled Audio Device.</p>

<p>The third Track Buffer also flows to a green box labeled Audio Decoder,
which also flows to a switch, this time however indicated closed, which then
also continues to the same summing junction as the second Track Buffer,
which connects to the Audio Device.</p>

<h3 id='sourcebuffer2'>Flowing down from SourceBuffer 2</h3>

<p>Flowing down from SourceBuffer 2 is a mauve triangle with a