delays with <avatar>.act and speech

[vsully]

I'm using <avatar>.speak() and <avatar>.act() to get an avatar talking. My problem is that with the sound files I have, (2-3 minute, 2-4 MB), the mouth movements will often end up with a ~5 sec lag by the end of the audio file.

Near 100% sync would be nice if possible, the other solution might involve clearing the face morphs when one audio file ends in order to begin and re-sync the next audio file, without the ~5 sec break in speech while the mouth wags in silence...

Towards the second solution, I'm using <avatar>.clear() with viz.ANIMATION and viz.CURRENT_ANIMATION, but it doesn't seem to be catching the mouth morphing.

Thanks