RME HDSP 9652 [64/75] Simple midi control

User's Guide HDSP System HDSP 9652 © RME

27.5 Simple MIDI Control

The stereo output faders (lowest row) which are set up as Monitor Main outputs in the Monitor

panel can also be controlled by the standard Control Change Volume via MIDI channel 1.

With this, the main volume of the HDSP 9652 is controllable from nearly any MIDI equipped

hardware device.

Even if you don't want to control all faders and pans, some buttons are highly desired to be

available in 'hardware'. These are mainly the Talkback and the Dim button, and the new moni-

toring options (listen to Phones submixes). Fortunately a Mackie Control compatible controller is

not required to control these buttons, as they are steered by simple Note On/Off commands on

MIDI channel 1.

The notes are (hex / decimal / keys):

Monitor Main: 3E / 62 / D 3

Dim: 5D / 93 / A 5

Mono: 2A / 42 / #F 1

Talkback: 5E / 94 / #A 5

Monitor Phones 1: 3F / 63 / #D 3

Monitor Phones 2: 40 / 64 / E 3

Monitor Phones 3: 41 / 65 / F 3

Preset 1: 36 / 54 / #F 2

Preset 2: 37 / 55 / G 2

Preset 3: 38 / 56 / #G 2

Preset 4: 39 / 57 / A 2

Preset 5: 3A / 58 / #A 2

Preset 6: 3B / 59 / B 2

Preset 7: 3C / 60 / C 3

Preset 8: 3D / 61 / #C 3

An example of a small MIDI controller covering such MIDI functionality (and even some more) is

the Behringer BCN44. This little box has 4 pots and 8 buttons for all the above functions – for

less than 60 Euros.

Furthermore TotalMix allows you to control all faders of all three rows via simple Control

Change commands.

The format for the Control Change commands is:

Bx yy zz

x = MIDI channel

yy = control number

zz = value

The first row in TotalMix is addressed by MIDI channels 0 up to 3, the middle row by channels 4

up to 7 and the bottom row by channels 8 up to 11.

16 Controller numbers are used: 102 up to 117 (= hex 66 to 75).

With these 16 Controllers (= faders) and 4 MIDI channels each per row, up to 64 faders can be

controlled per row (as required by the HDSP MADI).