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[Bug 18992] New: Running status should be prohibited

From: <bugzilla@jessica.w3.org>
Date: Mon, 24 Sep 2012 18:34:46 +0000
To: public-audio@w3.org
Message-ID: <bug-18992-5429@http.www.w3.org/Bugs/Public/>

           Summary: Running status should be prohibited
           Product: AudioWG
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: MIDI API
        AssignedTo: dave.null@w3.org
        ReportedBy: cwilso@gmail.com
         QAContact: public-audio@w3.org

Input from Yamaha:

● Prohibit to receive/send ‘Running Status’ (‘Running Status’:
○ Running Status is not able to stream in the spec of USB-MIDI. So the Web MIDI
API must care the
Running Status.
■ About sending MIDI Message from web browser: The iOS for example, the spec
says that
to set Running Status to MIDIPacket is prohibited, so Web MIDI API also follow
the spec and prohibit to set Running Status. And also, we do NOT know the
device which accepts Running Status, so we think this spec is appropriate to
the Web MIDI API.
■ About receiving MIDI Message from external MIDI input devices: The iOS for
example, status byte is added when the Running Status from MIDI mesages found.
We think this spec is also appropriate to the Web MIDI API.

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Received on Monday, 24 September 2012 18:34:47 UTC

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