Modify parameters with sound frequency

Is there any way of modifying parameters using sound frequency ?
I found the MIDI extractor modifyer but midi files aren`t the best option.
Is there any script or something for Fusion (not Studio, please) that does this thing ?
I want for example to pulse some text size by the music bass beats or something like this.

You could look at this:
http://www.steakunderwater.com/wesuckle ... ?f=6&t=496

Very nice, thank you. Really helpful.

I was wondering another thing. Is it possible to see the waveform of a loaded sound in Fusion ?

If you had Studio, you could use the Audio modifier from the Krokodove plugin suite.

Viewing a waveform is possible in the timeline once you add the Audio to the Audio-Tab of a Saver.

Cheers.

Eric.