(WaveShaperNodeCurveLength): WaveShaperNode curve length limit

[olivierthereaux]

Originally reported on W3C Bugzilla ISSUE-17365 Tue, 05 Jun 2012 11:52:13 GMT
Reported by Philip Jägenstedt
Assigned to

Audio-ISSUE-79 (WaveShaperNodeCurveLength): WaveShaperNode curve length limits [Web Audio API]

http://www.w3.org/2011/audio/track/issues/79

Raised by: Philip Jägenstedt
On product: Web Audio API

https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#WaveShaperNode

The behavior is not defined when the curve is 0 or 1 values long. It would also be useful to clarify how the values are mapped to the -1 -> +1 range. The assumption seems be that the values are spread with equal spacing, such that a curve with an odd number of values has the middle value corresponding to 0 and a curve with an even number of values has the two middle values corresponding to values around 0.

Finally, is there an upper limit to the curve length? Presumably there is not.

[cwilso]

I think setCurve with a curve of <2 values should throw InvalidAccessError. No upper limit to curve length. Philip's assumption from above should be documented.

[rtoy]

Fixed by pull request #388.