Toa DP-SP3 Protocol - Manual (Page 3)

Digital speaker processor DP-SP3
TOA Corporation 3/14
■ Control Command and Setting Value
Gain (Position)
Set the input and output channel gains by position.
For the relationship of position to gain (dB), refer to the Position vs. Gain Table.
The DP-SP3 transmits changed value data after receiving this command.
91H, 03H, , ,
00H: Input channel
01H: Output channel
When Channel Attribute=00H: 00H - 01H (Input channel 1 – 2)
When Channel Attribute=01H: 00H - 05H (Output channel 1 – 6)
00H - 3FH (-INF - +12dB, see the Position vs. Gain Table)
Example of setting Input channel 1 gain to 0 dB:
91H, 03H, 00H, 00H, 33H
Gain (Step)
Set the input and output channel gain positions by the number of steps.
Positions can be varied from the current status by the designated number of steps.
One position varies per step.
The DP-SP3 informs position values changed by step Up or Down.
91H, 03H, , ,
00H: Input channel
01H: Output channel
When Channel Attribute=00H: 00H - 01H (Input channel 1 – 2)
When Channel Attribute=01H: 00H - 05H (Output channel 1 – 6)
UP: 41H - 5FH (1 step up - 31-step up) ; Example showing 1step Up: 41H
Down: 61H - 7FH (1 step down – 31–step down) ; Example showing 1step Down: 61H)
Example showing 3-step Up of Input channel 1 gain
91H, 03H, 00H, 00H, 43H