At the 2013 NAMM Show, being held Jan 24-27 in Anaheim, California, the MIDI Manufacturers Association plans to meet and review a proposed High Definition MIDI Protocol:
Members of the HD Protocol Working Group will provide a private demonstration of prototype hardware and software using a working draft of the HD Protocol Specification.
Various devices will be connected via wired and wireless Ethernet, to demonstrate the plug-and-play connection and session management capabilities built into the HD Protocol, as well as features such as higher resolution controls, more throughput, and MIDI device compatibility.
The purpose of the demonstration is to encourage more companies to participate in completing the HD Protocol Specification.
Among the features proposed for High Definition MIDI:
- Support for more MIDI Channels and Controllers
- Greater resolution in data values
- New messages that were not practical with the MIDI 1.0 protocol
- The draft proposal allows HD senders to specify a direct pitch, rather than a Note Number. The Direct Pitch field sets the base pitch of the note, overriding the base pitch that would otherwise be selected by the note number, allowing easy implementation of alternate tuning systems.
- In addition to Note On and Note Off, the draft includes a Note Update message that allows modification of parameters or controllers during the lifetime of a note.
The High Definition MIDI specification has been under discussion at the annual MMA meeting since 2006. See the MIDI site for details.