Android touch latency vs. audio playback

Greets - I'm developing a simple rhythm box on an Android tablet and am hitting a snag dealing with a huge latency - easily 200ms if not closer to 400ms, between a "Touch" on a guitexture, and the playback of an attached mp3 file.

The demo program was originally written to test as a standalone Win32 app with MouseDown's so the majority of (what is a dead simple app) appears fine.

The guitexture has an AudioListener attached, and the below script attached as well:

function Update()

{

for (var touch : Touch in Input.touches)

{

 if(touch.phase == TouchPhase.Began && guiTexture.HitTest(touch.position))

 {

 audio.Play();

 }

  

}

}

...priority of these listeners have been bumped up to 255, with effects bypassed. Any thoughts on how to make this detect faster? I can do this in a parallel development in B4A (basic4Android) and get minimal latency, but would prefer to build this in Unity for consistency purposes.

Thanks, Ted.