Audio DSP with AEC, 4-in/4-out analog, 4-in/4-out Dante and USB
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3.3.11 High & Low Pass Filter
The output channels have high- and low-pass filters. Each
filter has four parameters:
Frequency
: The cut-off frequency of filters. The cut-off
frequency of Bessel and Butterworth is defined at -3 dB, and
the cut-off frequency of Linkwitz-Riley is defined at -6dB.
Gain
: Gain setting for the pass-band of the filter.
Type
: There are three types of filters including Bessel,
Butterworth and Linkwitz-Riley. Butterworth has the flattest
passband.
Slope
: Refers to the steepness of the filter in the stop-band.
There are 8 slope values: 6, 12, 18, 24, 30, 36, 42 and
48dB/Oct.
Each filter section has a separate on/off button.
3.3.12 Delay
On/off
: Activate the delay function on the output
Millisecond
: Set delay time in milliseconds. The value ranges from 1 to 1200 milliseconds.
Delay is also displayed in meter and feet.
3.3.13 Output
Phase:
Invert signal polarity.
Mute:
Mute to disable output.
