Intent to Remove: WebAudio Doppler effect API (actual effect already removed)

[Raymond Toy]

Primary eng (and PM) emails

rt...@chromium.org, foo...@chromium.org

Link to “Intent to Deprecate” thread

https://groups.google.com/a/chromium.org/d/msg/blink-dev/-1SI1GoHYO8/6XUjRs-fdv4J.

Summary

The actual Doppler effect was removed quite a while ago, but the API remained. foolip@ added the deprecation message (with a removal by M55).

Motivation

https://groups.google.com/a/chromium.org/d/msg/blink-dev/-1SI1GoHYO8/6XUjRs-fdv4J

Compatibility Risk

Risk is limited. Firefox never implemented the doppler effect (I think), the actual affect has been removed for a long time so the actual API didn't do anything.

Usage information from UseCounter

The actual use counters:

Doppler factor: https://www.chromestatus.com/metrics/feature/timeline/popularity/620

setVelocity:

https://www.chromestatus.com/metrics/feature/timeline/popularity/622

speedOfSound: https://www.chromestatus.com/metrics/feature/timeline/popularity/621

These haven't done anything in a couple of years.

OWP launch tracking bug

http://crbug.com/439644

Entry on the feature dashboard

https://www.chromestatus.com/features/5753252045914112

[Philip Jägenstedt]

LGTM1, thanks for taking care of this!

[Chris Harrelson]

LGTM2

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[Rick Byers]

LGTM3