Sync Image to voice

When I create a new look, it seems like the focus is to create an expression and then try to sync the voice to the image.  This seem off and it shows in the video.  Is there a way to take an image, static image and sync the image to the expression of the voice.

Right now, if I raise my voice, the "Look" doesn't match the expression of the voice, it follows the expression I created before for the "Look".

What if you could make it so if I raise my voice the image adjust to that voice expression.  It might raise my eyebrows, open my eyes and even open my mouth wider.  This would be really useful.

Thank you