RE: [Doepfer_a100] Re: voltage lists & WASP query
2002-10-09 by unknown freak
A lot of highpass filters seem to exhibit this behavior -- my Doepfer multimode, my ASys multimode, the multimode on my Alesis Andromeda, even my Electrix Filter Factory a little bit. My only highpass that completely cuts things off at the top of its range is my -24 dB Doepfer highpass.
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> -----Original Message----- > From: thepeak [mailto:thepeak@btinternet.com] > Sent: Wednesday, October 09, 2002 8:15 AM > To: Doepfer_a100@yahoogroups.com > Subject: RE: [Doepfer_a100] Re: voltage lists & WASP query > > > my professional reccomendation for you is that you twidle > with all your knobs and hope for the best!!!!!! Miss Lee > (Sound engineer extrodinare!) > -----Original Message----- > From: jmaddocks1975 [mailto:jmaddocks1975@yahoo.co.uk] > Sent: Thursday, October 10, 2002 3:46 AM > To: Doepfer_a100@yahoogroups.com > Subject: [Doepfer_a100] Re: voltage lists & WASP query > > > Hi Evan, > I don't know how to fix the module but here's a simple patch to > solve it. > > Wasp filter(a124) to Dual VCA(a132) audio in. > Control Voltage Source(a176) CV1 to Multiples. > multiples 1 out to Voltage Invertor(a175) > Voltage Invertor to Wasp filter CV1 > multiples 2 out to Dual VCA CV input. > > As you sweep the CV source knob (CV1) the hi pass will sweep up and > the volume of the VCA will get quieter until silent. > > > John. > > > > > > > --- In Doepfer_a100@y..., "Evan Lorden" <funkfumes@h...> wrote: > > Hi Doepfer interestees, > > Thanks for those lists. Quite handy. > > > > I have a WASP query. > > I'm hoping someone can tell me how to calibrate the cutoff > frequency so that > > I can cut the sound out completely using the high pass filter. > > I hope that's a clear request. > > When I use the low pass setting, I can cut the sound out so that > nothing > > gets through, but when I use the high pass setting (or the band > pass, for > > that matter) the freq control knob ceases to have effect for the > top quarter > > turn, and there is quite a lot of the frequency range left > unfiltered. ie. > > All the top range is unfilterable. > > > > I unscrewed the unit from the frame and twiddled the two trim pots > on the > > circuit, which seem to be designed for the purpose of calibrating > the cutoff > > in some way, but neither bring the high end cutoff range up. > > > > Do other people's WASP filters work the same way? > > I find it quite unsatisfactory, in a way. > > > > It seems to me it may simply be a fault of the circuit, though, > rather than > > poor calibration. If so, can anybody tell me if there is a > component or two > > that I can replace to extend the range? > > > > Thanks! > > Evan On Earth, > > Melbourne, Australia. > > > > > > ------ > > Message: 2 > > Date: Mon, 23 Sep 2002 20:46:09 -0000 > > From: "Joe Buechler" <buechlerjoe@t...> > > Subject: Re: voltage range of all the a100 CV cources??? > > > > According to my cheapo voltmeter (which has an analog dial hehe): > > > > A165: 0 to 9V > > A160: 0 to 10V > > A147 -4.5 to +4.5V > > A155 Gate: 0 to 10V > > A155 CV top: 0 to 4V > > A155 CV bottom: 0 to 7V > > A190 Gate: 0 to 9V > > A191 LFO: -5 to +5V > > A191 CV: 0 to 5V > > A141: 0 to 6V > > A162: 0 to 10V > > A140: 0 to 7V > > A119 Gate: 0 to 8V > > A119 Env: 0 to 8.5V > > A176: 0 to 5.5V > > A145: -5 to +5V > > > > I seem to recall Timothy did a more comprehensive list > earlier when > > the A150 bleed-thru issue was being discussed. > > > > Joe (not a wizard) > > A110 sine, pulse +/- 5.5V(there's no coupling capacitor, so stays > > this no matter what pulse width set to), tri +/- 7V, saw +/-5V > > A111 pulse +/- 4.5V (output is AC coupled, so this shifts to make > DC > > level zero, depending on pulse width), saw, tri +/- 3V, sine +/- > 4.5V > > A117 digital noise 0 E12V, oscillator outputs (very) > approx +/- 5V > > A119 gate out 0 E9V > > A129/3 CV out (nothing in) 0 E5.5V (daisy-chaining two sections > can > > add the same to this, to get up to 11V out) > > A140 envelope 0 E7V > > A141 envelope 0 E6V > > A145 saw, sine, square +/- 4.5V, triangle +/- 5V > > A146 bipolar pulse +/- 4.5V, unipolar pulse 0 E8V, variable tri > +/- > > 4V > > A147 tri +/- 6V, sine +/- 5.5V, square +/- 5V, saw (unipolar) 0 E > 7V > > A156 trigger out 0 E5V > > A160/161 clock outputs 0 E12V > > A163 divided output +/- 2.5V; (DC output if capacitor shorted 0 E > 5V) > > A174: X/Y offset set to 0, full range of joystick gives > approx -4V > > to +4V; joystick central, turning X or Y offset gives approx the > > same, -4V to 4V (hence you can get 0 E8V out etc.) > > A179 gate 0 E9V, CV out swings through 12V, so -12V E0 > to 0 E12V > > possible depending on offset setting > > A190 gate 0 E9V > > > > Some of these readings are quite rough and ready, and there may > > obviously be some variation from module to module; also some > VCO/LFO > > outputs change with frequency. > > > > Maybe other members can supply ranges for those modules I don't > have, > > e.g. A176 etc. > > > > _________________________________________________________________ > > Chat with friends online, try MSN Messenger: > http://messenger.msn.com > > > Yahoo! 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