Wow... You must want to work for a living. Express Animate can only adjust "key" frames to match to the audio, not audio to frames. You can change the speed and amplitude(db) of the audio. You can fade in and out the audio. You can make the audio play in reverse. There are many audio effects that can be applied as well. And you can slide the track anywhere along the compositions timeline. But you can not take the audio and stretch or squeeze it between video frames. Now if I miss read your question, please respond back and I will try again.