ASAHI KASEI
[AKD4633-A]
<KM079407>
2016/10
- 34 -
(6-1) Parameter Setting
“HPF Enable(HPFAD bit)”, “HPF Enable(HPF bit)”, “EQ1”, “EQ2”
Please set ON/OFF of Filter with a check button.
When checked it, Filter becomes ON. When “Notch Filter Auto Correction” is checked, perform automatic
correction of the center frequency of the notch filter is executed.
Figure 25. Filter ON/OFF Check Box
Please set a parameter of each Filter (
Note 9
)
Parameter
Detail
Setting Range
Sampling Rate
Sampling Frequency (fs)
8, 11.025, 12, 16, 22.05, 24
32, 44.1 or 48kHz
HPF
HPF Cut Off Frequency
High Pass Filter cut off frequency
0.0001
≦
fc/fs < 0.497
2 Band Equalizer
EQ1-2 Center Frequency
EQ1-2 Center frequency
0.003 < fo/fs < 0.497
EQ1-2 Band Width
EQ1-2 Band width
(
Note 10
)
fo/fs < 0.497
EQ1-2 Gain
EQ1-2 Gain
(
Note 11
)
-1
≦
Gain < 3
Table 6. Parameter Setting of [Filter Setting]
Note 9. When the value smaller than a setting range is set, the minimum value of setting range is set.
When the value bigger than a setting range is set, the maximum value of setting range is set.
When set error value to the filter of “OFF”, an error message is not displayed.
Note 10. A gain difference is a bandwidth of 3dB from center frequency.
Note 11. When a gain is “-1”, EQ becomes a notch filter.
