Auto Mixer - AMC OCTO User Manual

Software interface
Automatic mixer module allow to use up to eight microphones in audio
systems and control it's gain automatically. Auto mixer reduce non used inputs
gain and increase gain in currently used microphone input in order to reduce
microphones feedback, background noise and other extra noises influenced
by simultaneously used microphones. OCTO auto mixer offers a choice to set
priority levels for all inputs in order to have possibility set different gain adjust-
ment for different priority. Level one, highest priority microphone will get more
gain compared with lowest, eight level microphone. It helps precisely adjust
automatic mixer in any situation.
Input name - all OCTO audio inputs and outputs can be renamed by user. The
maximum name length is 8 symbols including letters and numbers. Name can
be changed in any menu there name window is displaying.
Input level value - it's a numerical value which shows what audio level is set with
fader. There is possibility to set audio level directly by adding values to these
windows.
Input level fader - Designed to adjust audio level. Audio level can adjusted by
dragging the fader with mouse pointer or by clicking mouse in any area near
the fader in order to force slider jump near the pointer.
In order to adjust level gradually also can be used keyboard navigation buttons
"up" and "down".
Priority off button – Priority off button allow reset priority cue in order to set the
same priority level to each microphone. After reset highest priority level will be
set to all inputs, slope value will be reset too.
14 USER MANUAL OCTO Digital signal processor
Priority level selector and input enable switch – this is multipurpose button de-
signed to enable/disable audio input in auto mixer and set it's priority level cue.
Enabled input is displayed in green color while disabled in grey. In order to
enable audio signal please click on the window there priority level is indicated,
purple color buttons allows control priority level.
3
1 2 4
1. Enabled input | 2. Disabled input | 3. Priority level increase button
Response time – is a time when auto mixer start to response. The value can be
entered in very small steps by using up and down buttons located near the value
window. Value can be entered directly by keyboard or "up" and "down" navigation
buttons. Before the entering value with keyboard please click on the "Response
time" window.
Slope – parameter describing how much input gain and other auto mixer param-
eters will affected during auto adjustment. The value can be entered in the same
way as in "Response time" window.
Bypass – designed to enable or disable auto mixer module.
Output selector - designed to select OCTO outputs to which signal from auto mixer
will be linked.
Master level – give a choice to adjust a volume of all summed audio signals from

auto mixer.

| 4. Priority level decrease button