MIDIbox

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MBMix version 2.0       Sept 2008
Operators Manual.

MBMixer is a digitally controlled audio mixer.
It can combine up to sixteen channels.
You may control MBMix from the knob on the front
panel, or it may be controlled remotely by MIDI 
control change messages.

The display, if equipped, will show the channel
number, channel name, and the current left and right
level settings of the last change made to the system.

Channel names can be whatever you choose, and are 
[[pga:preconfigsoftware|compiled]] into the program before loading.

Two level displays are available to choose from. There
is a "Stereo Bargraph" display that will probably work
with only limited display types, and a text based dB
display showing the current setting of each channel.
The choice of display is made before [[pga:preconfigsoftware|compiling]] the code.

To use this mixer, connect audio sources to 
the Audio In connectors on the mixer. Connect the Audio 
Out to your amplifier and speakers. Connect your control
surface or computer MIDI OUT to the MIDI IN jack, and 
also connect the MIDI OUT jack back to MIDI IN on your 
control surface.

Turn the power ON. After a few moments the MIOS copyright
will be displayed, followed by the MBMixer start message.
All mix levels will be initialized to 0dB. (Watch Out!)

To adjust the audio levels locally, press the encoder button 
until the desired channel is displayed. You can then turn 
the encoder to adjust the Volume, or press the encoder in 
and turn to adjust Balance. All changes will be echoed out
the MIDI OUT connector so your control surface can stay
in sync with the MBMixer.

To adjust the levels remotely, send CC#7 for Volume, and CC#8
or CC#10 for Balance/Pan. the display will show the name and 
channel, as well as the current settings as they change.
For a description of all the MIDI commands supported, see the [[pga:midichart|Midi Chart]].

To change the channel names, meter type or other options,
see the [[pga:preconfigsoftware|software options]] for this project.

To change the default (power on) settings, see [[pga:postconfigsoftware|this file]].

Lyle Hazelwood
lylehaze@bellsouth.net
MIDIbox

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