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[Bug 17335] (setValueCurveAtTime): AudioParam.setValueCurveAtTime

From: <bugzilla@jessica.w3.org>
Date: Tue, 11 Dec 2012 21:21:20 +0000
To: public-audio@w3.org
Message-ID: <bug-17335-5429-iXDywisEzM@http.www.w3.org/Bugs/Public/>

--- Comment #15 from Chris Rogers <crogers@google.com> ---
(In reply to comment #14)
> Is there anything against the idea of having separate interpolator objects?
> I start to realize that a lot of the time you want to make a choice *if* and
> *how* you want to interpolate. So why not have interpolation as a separate
> module that you can plug in front of an AudioParam.
> Or is this a crazy idea? :)

I don't think that there's any simple way to generically abstract an
interpolator object to work at the level of the modules in the Web Audio API. 
Marcus has suggested an approach which is very much lower-level with his math
library, but that's assuming a processing model which is very much different
than the "fire and forget" model we have here.

Even if there were a way to simply create an interpolator object and somehow
attach it to nodes (which I don't think there is), I think that for the 99.99%
case developers don't want to have to worry about such low-level details for
such things as "play sound now".  I've tried to design the AudioNodes such that
they all have reasonable default behavior, trading off quality versus
performance.  An attribute for interpolation quality seems like a simple way to
extend the default behavior, without requiring developers to deal with
interpolator objects all the time.

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Received on Tuesday, 11 December 2012 21:21:22 UTC

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