Telex ISP-100 Limiter Property, Filters Property, LowPass Filter Property, Notch Filter Property

4-2

Limiter
Property	Range	Default	Fine	Coarse
Bypass	in/out	out	n/a	n/a
Threshold	-60 dB to 0 dB	0 dB	.5 dB	3 dB
Attack Time	20 msec to 50 ms	.02 ms	.02 ms	1 ms
Release Time	20 msec to 5 sec	5000 ms	1 ms	100 ms
Detection Window	20 msec to 5 sec	50 ms	1 ms	100 ms
Crest Factor	0.00 to 1.00	.70	.01	.05
Knee	hard/soft	hard	n/a	n/a
Sidechain Channel	self, max of both, or	depends	n/a	n/a
	sidechain
Filters
Property	Range	Default	Fine	Coarse
Bypass	in/out	out	n/a	n/a
Absolute Polarity	+/-	+	n/a	n/a
Gain Trim	+12 dB to -12 dB	0 dB	.1 dB	1 dB
LowPass Filter
Property	Range	Default	Fine	Coarse
Slope	6,12	12	n/a	n/a
Cutoff Frequency	20 Hz to 20 kHz	20	1/12 Oct.	1/3 Oct.
Class	Bessel, Butterworth,	Butterworth	n/a	n/a
	or Linkwitz-Riley
HighPass Filter
Property	Range	Default	Fine	Coarse
Slope	6,12	12	n/a	n/a
Cutoff Frequency	20 Hz to 20 kHz	20	1/12 Oct.	1/3 Oct.
Class	Bessel, Butterworth,	Butterworth	n/a	n/a
	or Linkwitz-Riley
AllPass Filter
Property	Range	Default	Fine	Coarse
Cutoff Frequency	20 Hz to 20 kHz	20	1/12 Oct.	1/3 Oct.
Filter Order	1,2	2	n/a	n/a
LowShelf Filter
Property	Range	Default	Fine	Coarse
Slope	6,12	12	n/a	n/a
Cutoff Frequency	20 Hz to 20k Hz	20	1/12 Oct.	1/3 Oct.
Boost/Cut	+12 dB to -12 dB	0 dB	.1 dB	1 dB
HighShelf Filter
Property	Range	Default	Fine	Coarse
Slope	6,12	12	n/a	n/a
Cutoff Frequency	20 Hz to 20 kHz	20	1/12 Oct.	1/3 Oct.
Boost/Cut	+12 dB to -12 dB	0 dB	.1 dB	1 dB
Notch Filter
Property	Range	Default	Fine	Coarse
Center Frequency	20 Hz to 20 kHz	20	1/12 Oct.	1/3 Oct.
Cut	0 dB to -50dB	0 dB	1 dB	6 dB
Bandwidth	.08 to 1.0 octaves	1.0	.01 Oct.	.1 Oct.

10 July 1998