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 Forum index » DIY Hardware and Software » Jürgen Haible designs
JH 330
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Thu May 03, 2012 10:09 am    Post subject: JH 330
Subject description: Wanted JH schematics
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Hello all

I realized long ago the bank of vocal filters of the VP 330 as it is, but once connected on my modular, the sound was certainly saturated for reasons of impedance and level.

Is it someone would have the plans of the clone of regretted Jurgen?

Thank you (RIP Jurgen)
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yusynth



Joined: Nov 24, 2005
Posts: 1233
Location: France

PostPosted: Thu May 03, 2012 2:16 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi Chok

The schematics and all information are still available on jurguen's site :
http://www.jhaible.de/resonator/resonator.html

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Yves
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Thu May 03, 2012 3:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

Merci Yves, mais c'est l'adaptation des filtres du VP 330 que je recherche Wink
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vtl5c3



Joined: Sep 08, 2006
Posts: 423
Location: PDX
Audio files: 13

PostPosted: Sat Jun 16, 2012 5:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hello Chok,

I looked into the 330 filter not too long ago, so I will respond with a number of images to help you on your way:



chok wrote:
Merci Yves, mais c'est l'adaptation des filtres du VP 330 que je recherche Wink



block diagram.png
 Description:
Human Voice Block diagram from Roland VP330 Service Manual
 Filesize:  673.21 KB
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This image has been reduced to fit the page. Click on it to enlarge.

block diagram.png


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vtl5c3



Joined: Sep 08, 2006
Posts: 423
Location: PDX
Audio files: 13

PostPosted: Sat Jun 16, 2012 6:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

The VP330 Service Manual can be found here: http://manuals.fdiskc.com/tree/Roland/

and now for a close up of the human voice filter core:


filters schematic close up.png
 Description:
VP330 Human Voice Filter Core. From Roland VP330 Service Manual
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filters schematic close up.png


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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Sat Jun 16, 2012 11:08 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hello vtl5c3

Thank you for your answer... Wink

I had already realized these filters on a veroboard deck but, during the tests, the levels were inappropriate and cells saturated.

Furthermore, I think that it would be necessary to realize circuits of input and output to be able to accept levels of high, compatible signal instrument and modular.

I also believe that these filters work in a way optimum with the signals generated by the strings section of the VP330, no?

The module of Jurgen, visible on video YouTube, connected directly on a synthesizer with a sound of strings I believe, the result is fantastic and with a chorus....
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Sun Jun 17, 2012 2:54 am    Post subject: Reply with quote  Mark this post and the followings unread

I had redrawn the bank of filters of the VP 330. My problem is thus the adaptation of the inputs of 4 groups of filters to make only the only one. These 4 inputs result from output Upper and Lower for male and female voice, I had thought of using the principle of filters of band to be able to decompose the entering signal....
http://recybot.free.fr/documents/HVF330.pdf
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vtl5c3



Joined: Sep 08, 2006
Posts: 423
Location: PDX
Audio files: 13

PostPosted: Sun Jun 17, 2012 8:46 am    Post subject: Reply with quote  Mark this post and the followings unread

OK, you're a lot further along than I realized. Cool

Some input and output buffers are definitely necessary if working with typical modular synth signal levels. If you look at page 13 of the VP330 service manual, the upper left corner (labeled AGH17) shows the waveforms and their amplitudes that are being fed into the Human Voice filter. The amplitudes range from 1.5 to 2.9 V p-p, so definitely lower than what most modular VCOs output. I'm guessing that you also have to add an output buffer that boosts the signal a bit.


chok wrote:
Hello vtl5c3

Thank you for your answer... Wink

I had already realized these filters on a veroboard deck but, during the tests, the levels were inappropriate and cells saturated.

Furthermore, I think that it would be necessary to realize circuits of input and output to be able to accept levels of high, compatible signal instrument and modular.

I also believe that these filters work in a way optimum with the signals generated by the strings section of the VP330, no?

The module of Jurgen, visible on video YouTube, connected directly on a synthesizer with a sound of strings I believe, the result is fantastic and with a chorus....
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Wed Jun 27, 2012 12:30 pm    Post subject: Reply with quote  Mark this post and the followings unread

I realized my autonomous version of the vocal filters of the VP 330 today.
I thus have, on the good advice given here, realized a circuit of input limiting the input signal with a resistance of 47k in serial with a potentiometer of 50k what allows to divide in minima the signal by two approximately.
I have to add a simple AOP in mixer reverser on output of filters.
Test was realized with my JX 3P, with sound of strings + chorus and that works well. I would redo a try with a chorus connected after the filters as on the VP...
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vtl5c3



Joined: Sep 08, 2006
Posts: 423
Location: PDX
Audio files: 13

PostPosted: Fri Jun 29, 2012 2:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

Nice to hear that you got it working. Will you post any samples?
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Sat Jun 30, 2012 2:16 am    Post subject: Reply with quote  Mark this post and the followings unread

It is planned, but needs to leave me a little of time... Wink
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Sat Jun 30, 2012 10:38 am    Post subject: Reply with quote  Mark this post and the followings unread

Here is thus a small demonstration of the filters of VP 330 in which passed a sound of strings of JX-3P.
The sound lead is my clone of CS-80 (monophonic version at the moment), the sound of bass arises from Yusynth
http://soundcloud.com/chok66/mixst001
Wink
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Sun Jan 06, 2013 5:08 am    Post subject: HV 330 Reply with quote  Mark this post and the followings unread

Hello all and happy new year...

I found interesting things at this address:
http://s127.beta.photobucket.com/user/the_garranimal/library/VP-330%20Human%20Voice%20Filter%20Clone
I have redo the plan, available here (part framed in red):
http://recybot.free.fr/HV330/Visio-hv330_jh.pdf
I have the impression that it is the design of Jurgen Haible. On the left part, it is the original design of Roland. I have doubts on the value of resistance of 1k2 on filters, it would be possible that it is in fact 162k says to what the person having posted the documents of the first link.

Is it possible to replace the BA662 by one 3080 easier to find? Somebody have the schematic of the design of Jurgen HV 330?
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TheAncientOne



Joined: Dec 26, 2006
Posts: 146
Location: United Kingdom

PostPosted: Thu May 30, 2013 7:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

It may be that Tony Allgood, at Oakley has just designed a DIY module that may be of use:
http://www.oakleysound.com/hvm.htm

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Mike
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chok



Joined: May 18, 2008
Posts: 25
Location: Nogent sur marne/France

PostPosted: Fri May 31, 2013 12:57 am    Post subject: Reply with quote  Mark this post and the followings unread

Good news Wink
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