ISSUE-105: (Bugzilla 17416) timestamps in MIDI should use High Resolution Time

MIDI timestamp resolution

(Bugzilla 17416) timestamps in MIDI should use High Resolution Time

State:

CLOSED

Product:

MIDI API

Raised by:

Adam Goode

Opened on:

2012-06-01

Description:

The current MIDI API specifies timestamp as a long representing "milliseconds from the UNIX Epoch".

For MIDI applications, millisecond resolution is insufficient and can cause noticeable jitter.

Using absolute wallclock time is also problematic, as it is subject to system clock skew.

The MIDI timestamp should use High Resolution Time (DOMHighResTimeStamp), which solves these problems:
http://dvcs.w3.org/hg/webperf/raw-file/tip/specs/HighResolutionTime/Overview.html

Related Actions Items:

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Related emails:

1. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-07)
2. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from philipj@opera.com on 2012-06-07)
3. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-05)
4. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-05)
5. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from philipj@opera.com on 2012-06-05)
6. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from agoode@google.com on 2012-06-04)
7. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-04)
8. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from agoode@google.com on 2012-06-04)
9. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-04)
10. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from jussi.kalliokoski@gmail.com on 2012-06-04)
11. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-04)
12. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from agoode@google.com on 2012-06-01)
13. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from agoode@google.com on 2012-06-01)
14. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from agoode@google.com on 2012-06-01)
15. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from crogers@google.com on 2012-06-01)
16. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-01)
17. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from jussi.kalliokoski@gmail.com on 2012-06-01)
18. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from jussi.kalliokoski@gmail.com on 2012-06-01)
19. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from crogers@google.com on 2012-06-01)
20. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-01)
21. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from cwilso@google.com on 2012-06-01)
22. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from jussi.kalliokoski@gmail.com on 2012-06-01)
23. Re: Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from jussi.kalliokoski@gmail.com on 2012-06-01)
24. Audio-ISSUE-105 (MIDI timestamp resolution): timestamps in MIDI should use High Resolution Time [MIDI API] (from sysbot+tracker@w3.org on 2012-06-01)

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