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Bug 21592 - AudioBufferSourceNode.playbackRate should be specified as k-rate and not a-rate
Summary: AudioBufferSourceNode.playbackRate should be specified as k-rate and not a-rate
Status: CLOSED WONTFIX
Alias: None
Product: AudioWG
Classification: Unclassified
Component: Web Audio API (show other bugs)
Version: unspecified
Hardware: PC Linux
: P2 normal
Target Milestone: TBD
Assignee: Chris Rogers
QA Contact: public-audio
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-04-05 15:26 UTC by paul@paul.cx
Modified: 2014-10-28 17:16 UTC (History)
1 user (show)

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Attachments

Description paul@paul.cx 2013-04-05 15:26:40 UTC 
Quote from the spec:

> playbackRate
>
>    The speed at which to render the audio stream. The default 
> playbackRate.value is 1. This parameter is a-rate

WebKit implements this property as being k-rate, and I believe this is in fact just a typo in the spec.
Comment 1 Joe Berkovitz / NF 2014-05-23 16:23:22 UTC 
The spec is correct and WebKit and Chrome have a bug in the implementation. playbackRate should be a-rate; without this, it's impossible to achieve smooth frequency modulation of an AudioBufferSourceNode.
Comment 2 Olivier Thereaux 2014-10-28 17:13:56 UTC 
Web Audio API issues have been migrated to Github. 
See https://github.com/WebAudio/web-audio-api/issues
Comment 3 Olivier Thereaux 2014-10-28 17:16:49 UTC 
Closing. See https://github.com/WebAudio/web-audio-api/issues for up to date list of issues for the Web Audio API.