# computeSpectrum on Sound class?

**URL:** <https://forum.kirupa.com/t/computespectrum-on-sound-class/293654>\
**Category:** flash\
**Created:** [July 31, 2009, 9:14pm UTC](https://forum.kirupa.com/t/computespectrum-on-sound-class/293654 "2009-07-31T21:14:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cesig](https://avatars.discourse-cdn.com/v4/letter/c/278dde/32.png) [@cesig](https://forum.kirupa.com/u/cesig)\
**Post date:** [July 31, 2009, 9:14pm UTC](https://forum.kirupa.com/t/computespectrum-on-sound-class/293654/1 "2009-07-31T21:14:24Z")

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I’m trying to do some beat detection on a sound, but I want other sounds playing at the same time, and I don’t want those to be included in the beat detection. Is there anything like SoundMixer.computeSpectrum for individual Sound or SoundChannel instances ?