Mozilla Audio Data API: Fast Fourier Transform example
This example processes framebuffer data from the Mozilla Audio Data API event. The algorithm is used to obtain audio frequency levels which are then charted in a element.
This page is part of the ´óÏó´«Ã½ R&D blog post The Mozilla Audio Data API: what do the numbers mean?.
Please note that is required to run the code on this page.
JavaScript for audio data transformation used in this example is adapted from Mozilla Audio Data API .
More information about access to audio data in JavaScript is available from the page and the forum.
The video clip is edited from the Wellcome Trust animation and is used and made available under the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported licence.
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