• 03: Type
❑
Filter Type
❑
Settings: LPF24, LPF18, LPF12, HPF, BPF, BEF
Determines the type of filter response used.
The “LPF” (Low Pass Filter) settings produces a filter response that allows only frequencies below the cutoff
frequency (See “Cutoff Freq” below) to pass. The “LPF24” filter type has a steep -24dB/octave cutoff slope, the
“LPF18” has a less steep -18dB/octave slope, and the “LPF” type has a gentler -12dB/octave slope.
HPF
The “HPF” (High Pass Filter) setting produces a filter response that allows only frequencies above the cutoff
frequency (See “Freq” below) to pass.
BPF
The “BPF” (Band Pass Filter) setting produces a filter response that allows only a band of frequencies centered at
the cutoff frequency (See “Freq” below) to pass.
BEF
The “BEF” (Band Elimination Filter) setting produces a filter response that eliminates a band of frequencies centered
at the cutoff frequency (See “Freq” below) to pass.
Cutoff range
Frequency
Level
Range passed
Range passed
Center frequency
Range passed
Frequency
Level
Cutoff range
Cutoff range
Center frequency
Range passed
Cutoff frequency
Frequency
Level
Cutoff range
Frequency
Cutoff Frequency
Level
-12db/oct
-18db/oct
-24db/oct
Range passed
Cutoff range
54
2/FS1R/EDIT/E.qx 10/19/98 7:23 PM Page 54