Features
Did you ever work on an animation that involved something called MUSIC? Its this by-product that comes out of your speakers while the video is playing.

If you treat music in your videos as first-class citizens, beat assistant is a tool for you. It automatically detects the beats per minute of your music and allows you to do lots of things with it.

Images :

Audio :

set layer and composition markers according to the beat
generate keyframes and animate to the beat
stagger layers according to the beat

Easy import to Premiere Pro
The composition markers can easily be imported to Premiere Pro, as Eran Stern shows in his tutorial about Beat Assistant with Premiere Pro.

No expressions
You think animation to the music involves some weird expressions magic to tie your animation to audio keyframes? No, with beat assistant, you do it the mamoworld way: Animate all properties directly using intuitive interfaces.

Robust Beat Detection is achieved with the popular SoundTouch Audio Processing Library. While .wav files are supported natively, to work with .mp3 and .aif files, you need to install the separate tool LAME.

1.4 (Current version) – Apr 29, 2014
fixed “self is undefined” error