[web-audio-api] Acceptable range for value of AnalyserNode's fftSize (#171)

> Originally reported on W3C Bugzilla [ISSUE-19704](https://www.w3.org/Bugs/Public/show_bug.cgi?id=19704) Thu, 25 Oct 2012 16:08:44 GMT
> Reported by Olivier Thereaux
> Assigned to 

We discussed about FFT value back in May, and resolved that it was OK as a power of 2, rather than being an arbitrary value:
http://lists.w3.org/Archives/Public/public-audio/2012JanMar/0506.html

We have however not addressed a related question about the value range for the FFTSize. 

Raised by James on 22nd March:
http://lists.w3.org/Archives/Public/public-audio/2012JanMar/0460.html
and documented in an action item:
https://www.w3.org/2011/audio/track/actions/41

[[ For fftSize in RealtimeAnalyserNode in the spec, it only says the value must be power of 2. But in fact in the implementation, the value must be limited in the range of [128, 2048], and it will throw the exception if illegal value of fftSize is set. Which should be documented in the spec. ]]

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Reply to this email directly or view it on GitHub:
https://github.com/WebAudio/web-audio-api/issues/171