Junger Audio b40 - Digital Audio Toolbox - Manual (Page 9)

2. FUNCTION DESCRIPTION
2.3
AUDIO SIGNAL
PROCESSING
All signal processing is done in the digital domain by Texas
Instruments floating point signal processors. The use of 32 bit
word length for calculation ensures that there is no deterioration
in signal quality, even if an audio signal with a maximum word
length of 24 bit is input into the processing of the unit.
GAIN means linear amplification of input or output signals. The
input or output gain can be changed in steps of 0.1 dB , within a
range from -15...+15 dB.
Adjustment of GAIN is channel independent.
Setting the matrix means to set or to reset the crosspoints of the
4x4 mix-matrix. Because this matrix is a mix-matrix each output
line can be the sum of up to all four input lines. Amplifying and
mixing the input signals can make OVERLOAD! If an Overload
appears, the output level display shows the corresponding
„OVER“-message.
A fade is started automatically every time, if a matrix point is
modified. This fade is a linear change of input gain from current
value to infinity (or the other way) at a specific time (FADE
TIME).
fader function each recall of preset is starting fade in or fade
out depending on matrix setting
set of matrix point > fade in
reset of matrix point > fade out,
If at an output line the input crosspoints of different channels
become set and reset at the same time a linear crossfade is
made between these input signals.
FADE TIME
adjustable fade in/out time (0 .. 5 sec)
For each input channel there is an audio delay available. The
delay is adlustable between 0 and 160 ms in steps of 1 ms.
The delay can be used to give a correction if the audio signals
are in the right timing.
In case that the input signal (audio pair 1/2 or/and 3/4) is not
audio (but AC-3, Dolby E, MPEG..) the input can be feeded
directly to the related output bit transparent (no bit changes). The
unit is switching to transparent automatically if “non audio” flag
in the Channel Status Bit of the AES signal is set. Otherwise
transparent mode can be set manually by the user.
2.3.1
GAIN
2.3.2
SETTING THE
MATRIX
2.3.3
FADER FUNCTION
2.3.4
DELAY
2.3.5
TRANSPARENT
MODE
operation manual b40, chapter 2 -Function description- page 2-3