Explains in detail the basics of how Midi data is routed inside Logic. Where do you find incoming data, how do you record it, and where does it go next? This is the stuff that should have been in the manual but isn't. With downloadable environment.
System exclusive messages in general
What is sysex, is there a standard, how does it look and what is it used for?
System exclusive in Logic Audio 1: sysex faders
A tutorial on how to set up a sysex fader, and some non-standard applications. With downloadable environment. Updated to reflect changes in Logic v5 20/05/02.
System exclusive in Logic Audio 2: sysex transformers
A tutorial on how to set up a transformer as "Sysex Mapper". Much preferred to using a sysex fader, for various reasons that are explained. With downloadable environment.
System exclusive in Logic Audio 3: multi-byte messages
A tutorial on how to control MSB/LSB byte-pairs which are needed when values over 127 or negative numbers have to be sent. With downloadable environment.
Binary, hexadecimal, and byte ordering
Covers notation in base-2 and base-16 systems, the meaning of MSB/LSB, the use of 7-bit bytes in MIDI, and representation of negative numbers.
Decimal to hex conversion table
Easily convert decimal numbers to 2-byte, 7-bit hexadecimal.
All articles and accompanying environments on sysex in one archive
For your offline reading pleasure. To unpack the archive you need Stuffit Expander, which is free, and available for Mac and PC here.
(c) H.J. Veenstra 2001-2004.