Yamaha DB50XG - Manual (Page 12)

11
MIDI Data Format
11110000 F0 Exclusive status
01111110 7E Universal Non-Real Time
0xxxnnnn xn Device Number, xxx = irrelevant
00001001 09 Sub-ID #1=General MIDI
Message
00000001 01 Sub-ID #2=General MIDI On
11110111 F7 End of Exclusive
When General MIDI Mode On is received, the play mode
will be changed to XG mode.
When this happens, the DB50XG will receive the MIDI
messages which compatible with GM System Level 1, and
consequently will not receive NRPN and Bank Select mes-
sages.
Since approximately 50ms is required to execute this mes-
sage, be sure to leave an appropriate interval before the sub-
sequent message.
2.1.4 XG Native Parameter Change
With the Parameter Change messages as listed below, you can
change the characteristic of a Voice, such as by Effect Type or
effect parameter, transpose, tuning, and others.
11110000 F0 Exclusive status
01000011 43 YAMAHA ID
0001nnnn 1n* Device Number
01001100 4C XG Model ID
0aaaaaaa aa Address High
0aaaaaaa aa Address Mid
0aaaaaaa aa Address Low
0ddddddd dd Data
| |
11110111 F7 End of Exclusive
* Any number is OK since the device number for the
DB50XG is fixed to “All”.
For parameters with data size of 2 or 4, transmit the appropri-
ate number of data bytes.
When sending the parameter change messages consecutively,
be sure to leave an appropriate interval (if the time base is 480,
ca 5 unit) between the messages.
TG300B Reset
F0 41 1n 42 12 40 00 7F 00 41 F7
n=device number
2.1.4.1 XG System On
11110000 F0 Exclusive status
01000011 43 YAMAHA ID
0001nnnn 1n Device Number
01001100 4C XG Model ID
00000000 00 Address High
00000000 00 Address Mid
01111110 7E Address Low
00000000 00 Data
11110111 F7 End of Exclusive
When this data is received, the DB50XG will switch to XG
mode and all the parameters will be initialized accordingly,
and XG-compatible messages such as NRPN and Bank Se-
lect messages can be received.
Since approximately 50ms is required to execute this mes-
sage, be sure to leave an appropriate interval before the sub-
sequent message.
When this data is received, the DB50XG will change the
effect type to Echo.
2. To change the effect Dry/Wet balance of Echo to 50%
each, first check the Effect Parameter List (page 39), pa-
rameter number 10, to identify the Dry(50%)/Wet(50%); in
this case the Dry=Wet value is 64 (hexadecimal 40).
Next, check the address in <Table 1 - 3> (page 28) for the
VARIATION PARAMETER 10; in this case the address is
High, Mid, Low = 02, 01, 54, respectively.
Apply these to the 2.1.4 XG Native Parameter Change list
as follows:
11110000 F0 Exclusive status
01000011 43 YAMAHA ID
0001nnnn 1n Device Number
01001100 4C XG Model ID
00000010 02 Address High
00000001 01 Address Mid
01010100 54 Address Low
01000000 40 Data (MSB)
←
actual value
00000000 00 Data (LSB)
←
00 fixed
11110111 F7 End of Exclusive
When this data is received, the DB50XG will change the
effect Dry/Wet balance to 50% each.
Be sure to allow enough time for the procedure to take place
by inserting an empty measure at the top of the song for
every channel.
■ EXAMPLE OF PARAMETER CHANGE
1. To change Variation Effect type to Echo, first check the
Effect Type List (page 38) to identify the MSB and LSB
numbers; for Echo Variation Effect type numbers are MSB
= 07, LSB = 00.
Next, check the address in <Table 1 - 3> (page 28) for the
VARIATION TYPE parameter; in this case the address is
High, Mid, Low = 02, 01, 40, respectively.
Apply these to the 2.1.4 XG Native Parameter Change list
as follows:
11110000 F0 Exclusive status
01000011 43 YAMAHA ID
0001nnnn 1n Device Number
01001100 4C XG Model ID
00000010 02 Address High
00000001 01 Address Mid
01000000 40 Address Low
00000111 07 Data (VARIATION TYPE MSB)
00000000 00 Data (VARIATION TYPE LSB)
11110111 F7 End of Exclusive