# Motion by audio

**URL:** <https://forum.kirupa.com/t/motion-by-audio/313632>\
**Category:** flash\
**Created:** [September 5, 2010, 2:04pm UTC](https://forum.kirupa.com/t/motion-by-audio/313632 "2010-09-05T14:04:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rover87](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rover87](https://forum.kirupa.com/u/rover87)\
**Post date:** [September 5, 2010, 2:04pm UTC](https://forum.kirupa.com/t/motion-by-audio/313632/1 "2010-09-05T14:04:54Z")

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I was wondering if it would be possible to play a movieclip based on the computeSpectrum. When you visualize the spectrum 256 bars will react to the music played with values -1 to +1. I would like to have a spectrum with 8 bars and when a value exceeds 0.8 (for example) a movieclip should play.

Bar 1 = low tones to bar 8 = high tones

For example: A song with a lot of bass is visualized in 8 bars. When the bass comes bar 1 and 2 shoot out because of the deep tones. When bar 1 exceeds 0.8 movieclip\_bar1 should start playing.

How can I achieve this?

Help would be usefull!

Rogier