Expose Function to call "Lip Sync" process

Hello, 

I am extending Animate to expedite our content pipeline.  I'm using Extending Flash Professional: 

https://help.adobe.com/archive/en_US/flash/cs5/flash_cs5_extending.pdf

But there is no exposed function to code the lipsync function.  Could someone please tell me how to automate this function from code? 

Thank you, 

Atley