multiple source cv to single destination?
2011-07-28 by k9k9dog
sorry for piping up here, but i read about the multiple cv in thing. i m a synthedit user, so i don t know if it applies, but if i want to have the option to
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Re: [korgpolyex] VCF Drift Problem
2011-07-27 by billmeirelles@uol.com.br
Hi Gordon, I just tested it with the EG INT set to 0, same results. My Poly has a external CV IN for the VCF FREQ but it has a switch wich turns both positive
Re: [korgpolyex] VCF Drift Problem
2011-07-27 by billmeirelles@uol.com.br
I uploaded a sample here: http://launch.groups.yahoo.com/group/korgpolyex/files/5%29%20Miscellanoues/ Em 27/07/2011 19:06, Gordon JC Pearce
New file uploaded to korgpolyex
2011-07-27 by korgpolyex@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the korgpolyex group. File : /5)
Re: [korgpolyex] VCF Drift Problem
2011-07-27 by Gordon JC Pearce
On Wed, 27 Jul 2011 16:56:25 -0300 ... Stop guessing and start testing. Begin at the VCF CV input and work back. Check to see that if you hold a key with the
Re: [korgpolyex] Re: VCF Drift Problem
2011-07-27 by Josh Nursing
Cool :)
Re: [korgpolyex] Re: VCF Drift Problem
2011-07-27 by billmeirelles@uol.com.br
False alarm, I swapped the switch and the problem still there... Em 27/07/2011 17:34, 7yash escreveu: Is it actually drifting or
Re: [korgpolyex] Re: VCF Drift Problem
2011-07-27 by billmeirelles@uol.com.br
You point me to right direction, it looks like it s a bad switch after all, I ll swap it for a new one and see what happens, many thanks. Em 27/07/2011 17:34,
Silent Way and CVs - Re: FM-800 mod demo and two interesting questions.
2011-07-27 by 7yash
Thanks, I ll do that. I ve got mono jacks and some cables and I will test the RCA outputs of the M-Audio FastTrack Pro. This way, I ll get 4 independent
Re: [korgpolyex] Silent Way and CVs - Re: FM-800 mod demo and two interesting questions.
2011-07-27 by billmeirelles@uol.com.br
Yes, 7,6V I believe. Make sure you open up the filter to 99 and set the CUTOFF pot to 0 than you ll have the best results comming from the VCF CV IN. Em
Re: [korgpolyex] Re: VCF Drift Problem
2011-07-27 by billmeirelles@uol.com.br
Usually switching abruptly but to diferent values, sometime sounds more like drifting. I ll double check the switch, thanks Em 27/07/2011 17:34, 7yash
Re: VCF Drift Problem
2011-07-27 by 7yash
Is it actually drifting or rather switching abruptly? I had a similar problem yesterday and it was one of the contacts of the 12dB/24dB switch which was coming
Re: [korgpolyex] Silent Way and CVs - Re: FM-800 mod demo and two interesting questions.
2011-07-27 by Josh Nursing
These are the 4 CV inputs I was thinking about actually. So, if I want to combine 4 of them, I should make sure than the total CV inputs are less than 7V or
Re: [korgpolyex] VCF Drift Problem
2011-07-27 by billmeirelles@uol.com.br
Now I can here it s happenig when in 12dB too, looks more like the voltage is changing just like a rando LFO will do but it comes a go, you never know when.
Re: [korgpolyex] VCF Drift Problem
2011-07-27 by billmeirelles@uol.com.br
I need to do some more testing but I belive the problem only apear when the filter is in 24dB position and sound like if it is switching from 24dB to 18dB, now
Re: [korgpolyex] VCF Drift Problem
2011-07-27 by Gordon JC Pearce
On Wed, 27 Jul 2011 19:04:26 -0000 ... Only if you plan to scrap it afterwards. Never, ever recap equipment. If you find in the course of your investigations
Re: [korgpolyex] Silent Way and CVs - Re: FM-800 mod demo and two interesting questions.
2011-07-27 by billmeirelles@uol.com.br
What you can do is to have 1 CV input for the VCF FREQ, 1 for RES, 1 FOR DCO1 LEVEL and one for DCO2 LEVEL. I m working on a pasive AC/DC box with voltage
VCF Drift Problem
2011-07-27 by Bill Meirelles
Hi folks, It started yesterday, randon vcf positions as if it has an S&H LFO at the CV input of the VCF, I double checked the wiring and tried to disconnect
Re: [korgpolyex] Silent Way and CVs - Re: FM-800 mod demo and two interesting questions.
2011-07-27 by billmeirelles@uol.com.br
Yes, you sure do, the best way is to have only 1 input and choose what you want to send by the software, as an exemple you could send 1 LFO and 1 envelope
Silent Way and CVs - Re: FM-800 mod demo and two interesting questions.
2011-07-27 by 7yash
Bill, a question about using Silent Way with the Poly-800. Let s imagine I can use 4 different Silent Way CV signals to send to the Poly-800, and the latter
Oscillator to Resonance Mod.
2011-07-27 by 7yash
A video of DCO2 modulating Resonance CV In (that s the red crocodile clip you can see). Water droplets + Geiger counter effects in this patch, using suitable
Re: Internal LFO ICs and Pins.
2011-07-27 by 7yash
Ah, yes that small table below, I had forgotten about it. Thanks Mike. So, some more processing is done with those and output by IC 7, then.
Re: [korgpolyex] Internal LFO ICs and Pins.
2011-07-27 by Michael Hawkins
The LFO is software produced. It is output onto a eight D2A sample and hold outputs (IC8). See the bottom right hand corner of the circuit schematic. It shows
Re: External Audio in Mod.
2011-07-27 by 7yash
Success! I opted for mixing into the DCO1 & DCO2 Pins on the NJM2069 rather than switching from the Noise Input for now as it was easier. When you do this, you
Internal LFO ICs and Pins.
2011-07-26 by 7yash
I am gathering info about the internal non-Chorus LFOs. So far, I ve seen IC 7 - P 7, P 14 I ve also seen IC 8 - P 5 mentioned. Where are they?
Re: DCO2 detune
2011-07-26 by 7yash
Mike, see if Page 2 here helps - there seems to be a filter and a comparator:
Another Chorus Mod with some nice potential.
2011-07-25 by 7yash
Short IC 3 - P 7 & 14 on the Chorus board and let go (while some notes are playing through the sequencer for instance). This gives a nice, natural-sounding
Re: AM Mod?
2011-07-24 by 7yash
Thanks Bill, I will try the resistor. Yes, I think I am also using a Log Pot because although I wanted Lin ones, they were out of them. The NJM2609 also has CV
Re: [korgpolyex] Re: AM Mod?
2011-07-24 by billmeirelles@uol.com.br
Oh, and probably you are using a LOG pot, try a LIN one, this could explain why you only get an audible response at the end of the pot. Em 24/07/2011 18:21,
Re: [korgpolyex] Re: AM Mod?
2011-07-24 by billmeirelles@uol.com.br
For this type of connection you should use a 50k pot, 4.7k has too little resistance to separate the positive signal from ground efficiently, a small resistor
Re: AM Mod?
2011-07-24 by 7yash
Additional info on the DCO2 - DCO1 AM Mod: I connected a 4.7K potentiometer as in the diagram in the Files section. Clangorous tones, gets the same multi-notes
Re: [korgpolyex] Re: DCO2 detune PWM?
2011-07-23 by billmeirelles@uol.com.br
Yep, I got it, it s just that I was talking about the actual output of the synth, as you certainly know it s not possible to have a square wave at the output
Re: [korgpolyex] Re: DCO2 detune PWM?
2011-07-23 by Michael Hawkins
I am not talking about the output of the synth. I am speaking about the master clock that the TG uses to produce the various note frequencies. Those note
Re: [korgpolyex] Re: DCO2 detune PWM?
2011-07-23 by Michael Hawkins
not possible because the master clock is many times the actual tonal output which is created within the MSM5232. ________________________________ From: k9k9dog
Re: FM-800 mod demo and two interesting questions.
2011-07-22 by 7yash
Sounds good, thanks.
Re: [korgpolyex] Re: FM-800 mod demo and two interesting questions.
2011-07-22 by billmeirelles@uol.com.br
It s not a good choice, you can run into problems like noise in the audio source and significant voltage drop, the best way is to have a connector for CV input
Re: FM-800 mod demo and two interesting questions.
2011-07-22 by 7yash
Thanks for being patient with all these explanations, Bill, I am slowly starting to get it. The thing is: with a single jack, will I be able to route the audio
Re: AM Mod?
2011-07-22 by 7yash
Here s a preliminary update on the AM mods! 1. Connected IC 5 - P 7 (upper pin R76 too on second try) to NJM2609 P 2 - Mixer Signal 1 Level CV In. [DCO2 AM
New file uploaded to korgpolyex
2011-07-22 by korgpolyex@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the korgpolyex group. File : /4)
Re: [korgpolyex] Re: FM-800 mod demo and two interesting questions.
2011-07-22 by billmeirelles@uol.com.br
Exactly, you wire a connector for External VCF CV, if you add a rectifier with a voltage double you will be able to input audio from an audio interface or any
Re: External Audio in Mod.
2011-07-22 by 7yash
All right so I m starting to grasp the importance of the Muffwiggler rectifier so that we can get an Audio signal to send CV as well. Looks like if I want have
Re: FM-800 mod demo and two interesting questions.
2011-07-22 by 7yash
Check the Circuitbenders FM Mod here: http://www.circuitbenders.co.uk/synthmod/POLYEX.html FM MOD S: These consist of a source selection knob and an FM amount
Re: FM-800 mod demo and two interesting questions.
2011-07-22 by 7yash
Ah, I think I get you now, Bill: I was thinking External Audio as WAV for instance into the FM Cutoff CV IN, which doesn t work, right? Instead, I should
Re: [korgpolyex] Re: FM-800 mod demo and two interesting questions.
2011-07-22 by billmeirelles@uol.com.br
You don t need to, the external audio modulation for the VCF is indepent of the FM800 mod. Em 22/07/2011 18:05, 7yash escreveu: Let
Re: AM Mod?
2011-07-22 by 7yash
Awesome, thanks Bill, I will try this and report on my experiments. Ideally, I get the External Audio mixed in with DCO2, then use DCO2 as AM source to
Re: FM-800 mod demo and two interesting questions.
2011-07-22 by 7yash
Let me clarify: I would like to be able to use the External Audio as FM input instead of DCO1 (as in the FM-800) at will.
Re: [korgpolyex] AM Mod?
2011-07-22 by billmeirelles@uol.com.br
There is no risk of feedback, CV means control voltage, it has nothing to do with audio. Your ideas seams to work, you should give it a try, no extra parts
Re: [korgpolyex] Re: FM-800 mod demo and two interesting questions.
2011-07-22 by billmeirelles@uol.com.br
These are completely independent, you don t need a switch, you can use both at the same time if you wish. Em 22/07/2011 17:26, 7yash
Re: FM-800 mod demo and two interesting questions.
2011-07-22 by 7yash
Thanks for the detailed reply, Bill. I love this group and the helpful people like Mike and you :) I am not sure I get everything you say since I ve only just
AM Mod?
2011-07-22 by 7yash
I was looking at the schematics and trying to understand the FM-800 mod. So I gather that the Osc 1 is routed to P 19 - VCF Cutoff Lin In for FM. This got me