Sonifex S2 - Page 112

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S2 User Handbook
14
Preset P8 sets the gain through the limiter that feeds the analogue to digital converters.
Preset P9 sets the threshold. Presets P6 & P7 are for altering the audio waveform symmetry
(i.e. distortion) through the limiting stage. They are all factory set on nal test and should
not be adjusted further.
ADC Calibration
For optimum performance, the module should be calibrated when it has been powered up
for approximately 10-15 minutes. The circuitry and chipsets contained in the module will
warm up during this time and the performance will deteriorate unless calibrated (the noise
oor and dynamic range will be 1-2dB down on their best). The calibration cycle calibrates
the gain and the zero reference of the A/D converter.
To calibrate, hold down the PGM button and press the AUD button 5 times. The lock LED on
the front panel will ash quickly for 2 – 3 seconds and will return to it’s previous state. The
calibration procedure is now complete.
Button Mode Settings
To make the S2 modules as exible as possible, every button on each channel can be set
to a number of dierent modes. These will aid in the use of the mixer and allow for extra
functionality. To make use of these modes, you must enter a setup mode which is exactly
the same for every module. It is only necessary to perform this procedure once.
To enter the setup mode, hold down the PGM and AUD buttons together for 5 seconds.
After which all the buttons will start a recurring ashing sequence, at this point it is ok to
release the PGM and AUD buttons. This sequence indicates the mode which each button is
currently set to. One ash equals mode one, two ashes equals mode two etc. To change the
mode for a particular button simply press it once and watch the number of ashes increase.
Once the maximum mode number has been reached it will simply wrap around to mode
one and continue as before. To exit this setup procedure press and hold both the PGM and
AUD buttons as before for 2 seconds and the module will start operating as normal.
Each button and their corresponding modes are listed below.
PGM
Mode 1 : Normal. The PGM bus can be selected as the mono output source as normal.
Mode 2 : Always on. The program bus is permanently selected as the mono output source.
Mode 3 : Always o. The program bus can never be selected as the mono output source.
AUD
Mode 1 : Normal. The AUD bus can be selected as the mono output source as normal.
Mode 2 : Always on. The audition bus is permanently selected as the mono output source.
Mode 3 : Always o. The audition bus can never be selected as the mono ouput source.
Note: If both buttons are set to mode 2 (Always on) then the mono output will be a mix
of both PGM and AUD busses.
S2ODPF/S2ODP DIGITAL OUTPUT PGM CHANNEL
WITH & WITHOUT MASTER FADER VERSION 1
S2ODPF/S2ODP DIGITAL OUTPUT
PGM CHANNEL WITH & WITHOUT
MASTER FADER VERSION 1