The vco tracks for one and a half octave. Only one good octave is needed for the digital keyboard circuit. I gave up there. Eric van Baaren. _________________ -----Oorspronkelijk bericht----- Van: Peter Forrest [mailto:] Verzonden: dinsdag 10 april 2007 11:43 Aan: Onderwerp: [AH] arp pro soloist interfacing I think the ARP Pro Soloist is one of the nicest-sounding and most expressive monosynths ever, despite its being a preset instrument. Has anyone had success interfacing one to CV/gate and/or MIDI?

Shop from the world's largest selection and best deals for ARP Pro Audio Synthesizers. ARP Pro-Soloist. Pro Audio Software. I would like to get a few Arp pro soloist. I was recently looking at the service manual and. Get INSTANT ACCESS to the world's best private pro audio.

On 4/10/07, Peter Forrest wrote: >I think the ARP Pro Soloist is one of the nicest-sounding and most expressive monosynths ever, despite its being a preset instrument. >Has anyone had success interfacing one to CV/gate and/or MIDI? >Peter F There was an article in Keyboard or EM/Polyphony with some Pro Soloist hacks. This would have been more than twenty years ago, so it would definitely take some dedicated searching. Still, I remember it because at the time I was in a band with a guy who had a Pro Soloist (and he refused to let me tinker his prize synth.

I also wondered if it would be possible to create a 'user preset' extension card where the presets could be replaced with pots, or even trimmers (allowing you to create a few user presets and replace the factory patches). Of course, scaring up the schematics will be a good step in the right direction. You might also look at Don Tillman's site in the ARP Patents section to find some Pro Soloist details. One drawback of a simple MIDI - Relay interface is that you loose the cool pressure sensing keyboard. That's the best thing about the PS. A releated synth was the Moog Minitmoog, a preset synth with a pressure sensing keyboard. One big difference (well, the only difference, actually) was the fact that the Minit had a second VCO.

Probably made a big difference in the sound, although I've never heard or seen one in action. Ct Digitale Fotografie Pdf. Tim (rarely seen or heard in action) Servo -- 'Imagination is more important than knowledge.' - Albert Einstein. The Pro Soloist is a weird beast. From what I understand, it uses a high-freq voltage-controlled relaxation oscillator that operates over a one octave range inside of a phase-locked loop and gets divided down to cover the various octaves. The sawtooth wave is made up of sub-ocatve waves added with various weightings to make a stair-stepped approximation.

The pulse-width modded sound (fuzz guitar, as used in Genesis' 'Cinema Show' and others) has zippers in the ADSR-controlled variable pulse-width because of this stair-stepping. This along with the fixed op-amp filter banks give the Pro Soloist its unique sound. I started a Yahoo Group on the Arp Pro Soloist a while back so that people could share ideas and tech tips on this beast. If anyone is interested, the address is: I also have a link to the Pro Soloist repair manual at: www.poconothermionics.com/arp.html Dave ----- Original Message ----- From: 'Florian Anwander' To: 'Paul Perry' Cc: 'Analogue Heaven' Sent: Tuesday, April 10, 2007 10:03 AM Subject: Re: [AH] arp pro soloist interfacing. >Hi Paul >>>I don't know what the keyboard is doing, but even if (in the worst case) >>there is a non-linear resistor string that the keys tap off from, you >>could use reed relays to short around the key contacts. >I'm tempted to try this only to hear the relays clickering in the groove >of the noteon/notoff events of some cute sequencing;-) >>>Florian >>>PS: Doepfer offers a Relay board for theirs MTC64.

>>>>>-- >Internal Virus Database is out-of-date. >Checked by AVG Free Edition. >Version: 7.5.446 / Virus Database: 268.18.24/741 - Release Date: 3/31/2007 >8:54 PM >.

>On 4/10/07, Peter Forrest wrote: >>I think the ARP Pro Soloist is one of the nicest-sounding and most >>expressive monosynths ever, despite its being a preset instrument. >>Has anyone had success interfacing one to CV/gate and/or MIDI?