CQ-18T

Relative Control

A relative level message uses the same parameter number, but with an increment or decrement byte.

This raises or lowers a level in 1dB steps.  The NRPN Fader Law setting has no effect on relative control. +1dB (increment) MSB LSB Increment

B0 63 MB

B0 62 LB

B0 60 00

-1dB (decrement)

Decrement

MSB

LSB

B0 63 MB

B0 62 LB

B0 61 00

Both where: MB/LB = MSB/LSB Parameter number

Examples:

Address, Inc/Dec Ip1 to LR, Increment Ip1 to LR, Decrement

Message

B0 63 40 B0 62 00 B0 60 00 B0 63 40 B0 62 00 B0 61 00 B0 63 46 B0 62 2E B0 60 00

FX3 to Out 3/4, Increment

 10

MIDI Protocol V1.2 Issue 5