Presentation on theme: "MMC. MMC is part of the Universal Real-Time System Exclusive protocol. Various SysEx messages have been implemented to take advantage of MMC. Commands."— Presentation transcript:
MMC Handshake closed loop VS open loop If a device doesn’t detect a closed- loop, it assumes that it will only send or receive MMC commands rather than doing both.
MMC Handshake closed loop VS open loop If the device receives a ‘hand- shake’, it assumes that it can do both, transmit and respond to MMC commands and responses.
MMC works with MTC / MIDI Clock / Etc The Goto MMC message The Goto message cues recording or playback to a SMPTE time (a specific hour, minute, second, SMPTE frame number, and subframe number) SPP can be used.
Identity Request Query an MMC device to find out its identity. Identity Request message (note that this is equal to a 'stop' message)
The Record Ready MMC message The Record Ready (Arm Tracks) message will record-enable tracks
MMC MESSAGES Classified by type: Comm: Communications Ctrl: Transport (play - stop - etc.) Evnt: Event Gen: Time Codes I/O: Reading, writing Sync: Synchronization
MMC Messages (cont.) Math: Mathematical operations MTC: MIDI Time Code Proc: Procedures Time: info dealing with time code
07 Record Exit (Punch out) 08 Record Ready 09 Pause 0A Eject 0F MMC Reset 40 Write 44 Locate/Go to
controls 01 Stop 02 Play 03 Deferred Play 04 Fast Forward 05 Rewind 06 Record Strobe (Punch In)
08 Record Ready 09 Record Pause 0A Eject 0B Chase (Sync) 0C Command Error Reset (I/O) 0D MMC Reset