# Reacting to sound output Via SoundMixer.computeSpectrum()

**URL:** <https://forum.kirupa.com/t/reacting-to-sound-output-via-soundmixer-computespectrum/238251>\
**Category:** flash\
**Created:** [September 8, 2007, 11:29pm UTC](https://forum.kirupa.com/t/reacting-to-sound-output-via-soundmixer-computespectrum/238251 "2007-09-08T23:29:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![raven\_gm](https://avatars.discourse-cdn.com/v4/letter/r/54ee81/32.png) [@raven\_gm](https://forum.kirupa.com/u/raven_gm)\
**Post date:** [September 8, 2007, 11:29pm UTC](https://forum.kirupa.com/t/reacting-to-sound-output-via-soundmixer-computespectrum/238251/1 "2007-09-08T23:29:19Z")

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I wanted to design a pesudo-visualizer of sorts, so I looked up the computeSpectrum method…

I can get a ByteArray out of it, but I don’t know how to read the data out of it properly (I know the format 512 bianary numbers, but I don’t know exactly what I should do with them…