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--- midi_specification [2006/10/15 09:35] – (old revision restored) 127.0.0.1
+++ midi_specification [2012/10/02 06:42] (current) – Reverting spam from lauraholden cheater
@@ Line 1: / Line 1: @@
 ====== MIDI Specifications ======
+If you'd like a simplified explanation, see [[http://www.midibox.org/dokuwiki/simple_midi_specification|here]]... Otherwise this page contains some more technical info.
 [[MIDI]] is a standardized way for the communication between musical devices. It specifies the physical interface as well as the transmission protocol. There are different types of MIDI messages, for a full list please follow the links below.
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 F identifies a System Message which either addresses all listeners (there is no MIDI channel), or which addresses dedicated MIDI devices which are parsing for a SysEx (System Exclusive) stream.
-E.g., MIOS "feels addressed" on SysEx messages which are starting with 0xF0 0x00 0x00 0x7E 0x40, followed by data byte which selects the device (Device ID), followed by a command to the operating system (e.g. Code Upload).
+E.g., MIOS "feels addressed" on [[SysEx]] messages which are starting with 0xF0 0x00 0x00 0x7E 0x40, followed by data byte which selects the device (Device ID), followed by a command to the operating system (e.g. Code Upload).
-SysEx messages should be finished with 0xF7, thereafter any other MIDI event can be sent again.
+[[SysEx]] messages should be finished with 0xF7, thereafter any other MIDI event can be sent again.
 The last Status Bytes within the range of 0xF8..0xFF - also called "Realtime messages" - have (again) a special purpose, because it's allowed to send them at any time, even in between any other MIDI message without violating the protocol.
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 \\
 \\
 ====== Programming Examples ======
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 \\
 \\
+====== 14-bit MIDI Messages ======
+There are two ways to use 14-bit MIDI Messages; the trick is, to combine two 7-bit Messages to one 14-bit:
+<code c>
+unsigned int MSB  = 127 << 7; // 16256
+unsigned char LSB = 127; // 127
+unsigned int largeNumber = MSB + LSB; // 16383:
+</code>
+  * using RPNs
+  * using NRPNs: <code c>
+CC98	01100010	0x62	Non-Registered Parameter Number (NRPN) - LSB	0-127	LSB
+CC99	01100011	0x63	Non-Registered Parameter Number (NRPN) - MSB	0-127	MSB
+</code>
+  * sending two Controller Messages, eg:<code>
+CC 12, Effect Ctrl 1 (MSB = Most Significant Byte)
+CC 44, Effect Ctrl 1 (LSB = Least Significant Byte)</code>
+Sending 14bit from one pot is only possible if you're hacking the code. Because Pots are being read as 10-bit value, you have to interpolate to 14 bit and implement a NRPN or dual-CC method.
+Further informations: \\
+[[http://home.roadrunner.com/~jgglatt/tech/midispec.htm|Jglatt's Technical MIDI Specs Page]] or \\
+[[http://www.midi.org/about-midi/table3.shtml|Table 3: Summary of Control Change Messages (Data Bytes)]] for further examples and explanations
+\\
+\\
 ====== Tools & Helpers ======
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 More informations can be found online:\\
-  * [[http://www.borg.com/~jglatt|MIDI Technical Fanatic's Brainwashing Center]] <sup>must-read!</sup>\\
+  * [[http://home.roadrunner.com/~jgglatt/|MIDI Technical Fanatic's Brainwashing Center]] <sup>must-read!</sup> [[http://web.archive.org/web/20070813201804/www.borg.com/~jglatt/|Archive]]\\
-  * [[http://www.borg.com/~jglatt/tech/midispec.htm|Jglatt's Technical MIDI Specs Page]]\\
+  * [[http://home.roadrunner.com/~jgglatt/tech/midispec.htm|Jglatt's Technical MIDI Specs Page]] [[http://web.archive.org/web/20070820161159/http://www.borg.com/~jglatt/tech/midispec.htm|Archive]]\\