mute sound through phone speaker Android api
<p>I want the to mute all sounds coming through the phone speaker but keep the sounds going through the headphones.  Is this possible?</p>

<p>I was looking at:
setMicrophoneMute(true);
and
setSpeakerphoneOn(false);</p>

<p>but neither seem to have any affect.  Is this even possible?  I have this permission in my manifest:</p>

<p></p>

<p>I couldn't see any methods that would accomplish what I want in the audio manager but maybe I just don't understand the api.</p>
