ID Number: Q71023
1.00
WINDOWS
Summary:
A MIDI file authored using only the high-end data do not produce sound
on a low-end MIDI device. For example, if a MIDI file is created using
only channels 2 through 5, a low-end device would not receive the MIDI
data. Because there is no low-end version of the data, nothing is sent
through the mapper to the low-end (for example, AdLib) device.
More Information:
The 16 MIDI channels are organized as follows:
Channel Use
------- ---
1 high-end (highest priority)
2 high-end
3 high-end
4 high-end
5 high-end
6 high-end
7 high-end
8 high-end
9 high-end (lowest priority)
10 high-end percussive
11 RESERVED
12 RESERVED
13 low-end (highest priority)
14 low-end
15 low-end (lowest priority)
16 low-end percussive
MIDI data is authored in parallel, with high-end and low-end data. The
mapper masks off data that is inappropriate for the device on which
the sound is played. (The mapper also transforms the sound according
to the maps.)
In the case above, to hear the MIDI data, it would be necessary to
create a map that passes the data on channels 2 through 5 to the
Adlib, or to modify the file to use channels 13 through 16.
Additional reference words: 1.00