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Re: Questions about AudioParam

From: Ray Bellis <ray@bellis.me.uk>
Date: Tue, 11 Dec 2012 08:05:19 +0000
Message-ID: <50C6E93F.908@bellis.me.uk>
To: public-audio@w3.org
On 11/12/2012 01:27, Chris Rogers wrote:

> I can see how an AudioParam could keep a record for .computedValue for
> the last N "rendering quantums", so it could look back in time to the
> .computedValue corresponding to the snapshot of .currentTime you're
> suggesting.  But we can't go back an arbitrary amount of time, since we
> don't have infinite storage.  This value is computed based on timeline
> values and also audio-rate signals (from other AudioNodes) connected to
> it.  So we don't necessarily have all the information we need to compute
> this value on-the-fly arbitrarily backwards in time.

Just wondering - how does this (pre?) calculation of an AudioParam's
values affect the various suggestions for how those values might be
exposed to a ScriptProcessorNode ?

(https://www.w3.org/Bugs/Public/show_bug.cgi?id=17388)

Ray
Received on Tuesday, 11 December 2012 08:30:46 UTC

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