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Bug 17332 - (linearRampToValueAtTime): AudioParam.linearRampToValueAtTime start and finish
Summary: (linearRampToValueAtTime): AudioParam.linearRampToValueAtTime start and finish
Status: CLOSED WONTFIX
Alias: None
Product: AudioWG
Classification: Unclassified
Component: Web Audio API (show other bugs)
Version: unspecified
Hardware: PC All
: P2 normal
Target Milestone: TBD
Assignee: This bug has no owner yet - up for the taking
QA Contact: This bug has no owner yet - up for the taking
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Reported: 2012-06-05 11:23 UTC by Philip Jägenstedt
Modified: 2014-10-28 17:16 UTC (History)
3 users (show)

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Description Philip Jägenstedt 2012-06-05 11:23:52 UTC
Audio-ISSUE-36 (linearRampToValueAtTime): AudioParam.linearRampToValueAtTime start and finish [Web Audio API]

http://www.w3.org/2011/audio/track/issues/36

Raised by: Philip Jägenstedt
On product: Web Audio API

When does the ramp start and when does it finish? There is only a single time parameter, and its meaning is not defined.
Comment 1 Chris Rogers 2012-06-08 20:06:07 UTC
More detailed text added in:
https://dvcs.w3.org/hg/audio/rev/d1fb69113f02
Comment 2 Marcus Geelnard (Opera) 2012-06-12 07:58:15 UTC
That certainly makes it more clear. Two things:

- It is not clear what should happen if several events of different types occur at the same time. For instance, it would lead to division by zero in some of the equations. It seems to me that the only valid case of having events occur at the exact same time is to have a non-setValueAtTime event followed by a setValueAtTime (other kinds of events should effectively degrade to setValueAtTime, right?).

- For ramps, it is not defined what should happen if there are no previous events (e.g. if linearRampToValueAtTime is the first event in the list).
Comment 3 Olivier Thereaux 2014-10-28 17:13:35 UTC
Web Audio API issues have been migrated to Github. 
See https://github.com/WebAudio/web-audio-api/issues
Comment 4 Olivier Thereaux 2014-10-28 17:16:30 UTC
Closing. See https://github.com/WebAudio/web-audio-api/issues for up to date list of issues for the Web Audio API.