# Sound.extract and ComputeSpectrum

**URL:** <https://forum.kirupa.com/t/sound-extract-and-computespectrum/280447>\
**Category:** flash\
**Created:** [January 27, 2009, 7:07pm UTC](https://forum.kirupa.com/t/sound-extract-and-computespectrum/280447 "2009-01-27T19:07:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![K2xL](https://avatars.discourse-cdn.com/v4/letter/k/59ef9b/32.png) [@K2xL](https://forum.kirupa.com/u/K2xL)\
**Post date:** [January 27, 2009, 7:07pm UTC](https://forum.kirupa.com/t/sound-extract-and-computespectrum/280447/1 "2009-01-27T19:07:28Z")

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Do to the annoying security sandbox bug with computeSpectrum (inaccessible if a user has youtube or any other flash using sound open) I decided to convert my project to Flash Player 10 to use the new sound.extract() function.

Now my question is a simple one, how can I grab the spectrum information from sound.extract byte array? It seems that I can get the left and right channel information, but is there some spectrum information somewhere too?