electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
go to the radio page Live at electro-music.com radio 1 Please visit the chat
poster
 Forum index » DIY Hardware and Software » Jürgen Haible designs
Living VCOs
Post new topic   Reply to topic Moderators: fonik, Scott Stites
Page 3 of 21 [520 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Goto page: Previous 1, 2, 3, 4, 5, ..., 19, 20, 21 Next

Would you prefer one PCB with 3 VCOs a la JH-5A, or 1 VCO per PCB with more features
One PCB with Oscillator Driver and 3 VCO cores (like JH-5A - cheap!)
60%
 60%  [ 62 ]
1 PCB = 1 VCO (with many waveforms and inputs)
39%
 39%  [ 41 ]
Total Votes : 103

Author Message
fluxmonkey



Joined: Jun 24, 2005
Posts: 708
Location: cleve

PostPosted: Sat Dec 13, 2008 10:49 am    Post subject: Reply with quote  Mark this post and the followings unread

frijitz wrote:
mono-poly wrote:
I'd love to see a Buchla 158 or 144 like vco.
Simple vco with 1 waveform output.
But great fm and/or am sound.

I proposed doing this several months ago, but there wasn't much interest:
http://electro-music.com/forum/topic-28713.html
I guess if it doesn't say M... or B..... it's gonna get killed by the fanatics.

Very Happy

Ian


ian, i expressed interest at the time, and it remains... i wouldn't have seen this as an either/or situation, and would certainly pick up both if they come to fruition.

if you're queueing up projects, tho, i'm really looking forward to the DoubleDeka, ahead of anything else you've proposed... that is gonna be tasty!

_________________
www.fluxmonkey.com
Back to top
View user's profile Send private message
frijitz



Joined: May 04, 2007
Posts: 1734
Location: NM USA
Audio files: 54

PostPosted: Sat Dec 13, 2008 3:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

bbob wrote:

ian, i expressed interest at the time, and it remains...

I think we should move any more discussion of this over to its own thread.

Thanks.

Ian
Back to top
View user's profile Send private message
xpmtl



Joined: Aug 10, 2007
Posts: 162
Location: Brussels, Belgium

PostPosted: Sat Dec 13, 2008 4:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

Funky40 wrote:
johans121 wrote:
As long as I have money to blow, you'll continue to receive it Wink

Laughing
i'm in the same boat


one more on the boat here

_________________
http://sdiy.xpmtl.net
Back to top
View user's profile Send private message
ach_gott



Joined: Sep 09, 2008
Posts: 79
Location: Chicago

PostPosted: Mon Dec 15, 2008 12:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

xpmtl wrote:
Funky40 wrote:
johans121 wrote:
As long as I have money to blow, you'll continue to receive it Wink

Laughing
i'm in the same boat


one more on the boat here


Is there room for me on the boat? Smile
Back to top
View user's profile Send private message
johans121



Joined: Jun 19, 2007
Posts: 178
Location: Huntsville, AL (USA)

PostPosted: Tue Dec 16, 2008 1:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

ach_gott wrote:
Is there room for me on the boat? Smile


the more the merrier Smile

_________________
Don't feed me Indian, you WILL regret it!

-Jim
Back to top
View user's profile Send private message Visit poster's website
alain6870



Joined: Apr 04, 2008
Posts: 17
Location: France

PostPosted: Tue Dec 16, 2008 2:04 pm    Post subject:  
Subject description: Explaining the detune capacity in a few simple words
Reply with quote  Mark this post and the followings unread

Hello Jürgen,

I think your design with 3 VCO on the same PCB is interesting for me. I would like to use it to create string pads or brass leads and for that purpose saw and square waves are ok. And if your design is based on a saw oscillator it would be easy to add as many waveshaper we want on extra pcbs. What really matters is the detune automation... If I don't misunderstood what you described, I could dare to summeries it this way: Embarassed

- linear detune (V/Hz) scale not influenced by the expo input (V/oct):

- 1 Hz detune between 2 oscillators (for instance 440 Hz and 881 Hz) stays 1Hz if I play an A5 (we have then respectively 880 Hz and 1761 Hz on both VCOs)

Best Regards

Alain

PS: Of course I would try one if your selling PCBs
Back to top
View user's profile Send private message
jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Tue Dec 16, 2008 2:12 pm    Post subject:
Subject description: Explaining the detune capacity in a few simple words
Reply with quote  Mark this post and the followings unread

alain6870 wrote:

- 1 Hz detune between 2 oscillators (for instance 440 Hz and 881 Hz) stays 1Hz if I play an A5 (we have then respectively 880 Hz and 1761 Hz on both VCOs)


That will be one of its features indeed.

JH.

Now playing: Brian Eno, Music for Films

_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
Back to top
View user's profile Send private message Send e-mail Visit poster's website
igormpc



Joined: Jul 26, 2006
Posts: 2
Location: recife / PE / Brasil

PostPosted: Sat Jan 03, 2009 5:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

i am interested in one pcb also.
Back to top
View user's profile Send private message
plord



Joined: Dec 15, 2007
Posts: 19
Location: El Cerrito, CA

PostPosted: Tue Jan 06, 2009 2:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

I am interested in at least one Smile
Back to top
View user's profile Send private message
Electronicant



Joined: Feb 23, 2006
Posts: 81
Location: North

PostPosted: Tue Jan 20, 2009 7:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

The result of the poll point at the cheaper 3 VCO model with less waveforms. A suggestion for wave selection could be the stepless variable saw/pulse waveshaper used on MOTM-310 and Micromoog/Multimoog. Maybe that´s more complicated than the toggle on the JH5, but it´s the solution Moog choosed for their budget Micromoog. It´s a nice function and I assume that it could make the living VCO even more living Wink
Last edited by Electronicant on Tue Jan 27, 2009 10:30 pm; edited 1 time in total
Back to top
View user's profile Send private message
Krelnarb



Joined: Dec 04, 2007
Posts: 23
Location: Richmond, CA

PostPosted: Wed Jan 21, 2009 1:33 pm    Post subject: Reply with quote  Mark this post and the followings unread

I'm also interested in at least one.

thanks!
Back to top
View user's profile Send private message
synthetic



Joined: Jun 02, 2007
Posts: 76
Location: Glendale, CA

PostPosted: Fri Feb 13, 2009 4:56 pm    Post subject: Reply with quote  Mark this post and the followings unread

Looking forward to two or three oscillators like this.
Back to top
View user's profile Send private message
jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Fri Feb 13, 2009 5:48 pm    Post subject: Reply with quote  Mark this post and the followings unread

synthetic wrote:
Looking forward to two or three oscillators like this.


It's going to happen.
I've been working some hours on this today.
It will be 3 VCOs on one PCB.
I start with the core parts, and then see what else will fit on the board.

JH.

_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
Back to top
View user's profile Send private message Send e-mail Visit poster's website
303monkey



Joined: Mar 11, 2008
Posts: 65
Location: NODNOL

PostPosted: Sun Feb 22, 2009 7:44 am    Post subject: Reply with quote  Mark this post and the followings unread

I would be up for 1, if not 2
Back to top
View user's profile Send private message
2thick4uni



Joined: Feb 20, 2009
Posts: 113
Location: UK

PostPosted: Sun Feb 22, 2009 12:28 pm    Post subject: Reply with quote  Mark this post and the followings unread

Count me in for a pcb
Back to top
View user's profile Send private message
aerogramma



Joined: Feb 27, 2008
Posts: 156
Location: Roma, Italy - London, UK
Audio files: 13

PostPosted: Mon Feb 23, 2009 10:53 am    Post subject: Reply with quote  Mark this post and the followings unread

TekniK wrote:
2 vco's on one pcb is ideal Juergen,but would be perfect if u just could add sine for both 2 on the pcb


I also vote for SINE out ... there're relatively few modules outtputting sinewaves Wink

thanks!

aero
Back to top
View user's profile Send private message Visit poster's website
synthetic



Joined: Jun 02, 2007
Posts: 76
Location: Glendale, CA

PostPosted: Mon Feb 23, 2009 1:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

Sweet!!! I've been waiting for this for a while.
Back to top
View user's profile Send private message
jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Mon Feb 23, 2009 2:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

aerogramma wrote:
TekniK wrote:
2 vco's on one pcb is ideal Juergen,but would be perfect if u just could add sine for both 2 on the pcb


I also vote for SINE out ... there're relatively few modules outtputting sinewaves Wink

thanks!

aero


No sine waves - sorry.
There is only so much I can put on a single PCB, and I decided to put 3 VCO cores there, plus a discrete PWM circuit per VCO, just like the JH-5 has.

JH.

_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
Back to top
View user's profile Send private message Send e-mail Visit poster's website
TekniK



Joined: Aug 10, 2008
Posts: 1059

PostPosted: Mon Feb 23, 2009 10:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

aerogramma wrote:
TekniK wrote:
2 vco's on one pcb is ideal Juergen,but would be perfect if u just could add sine for both 2 on the pcb


I also vote for SINE out ... there're relatively few modules outtputting sinewaves Wink

thanks!

aero


I don't care abouth sines,but i need them for my wave multipliers
Back to top
View user's profile Send private message
jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Sat Feb 28, 2009 3:49 am    Post subject: Reply with quote  Mark this post and the followings unread

Here's a little preview of what I'm working on.
Looks like I can indeed put 3 VCOs plus an Oscillator Driver on a single board! This may get very close to the whole oscillator section of my JH-5, just on a single 160mm * 100mm PCB.

JH.


living_preview.jpg
 Description:
 Filesize:  241.72 KB
 Viewed:  664 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

living_preview.jpg



jh5_total_large.jpg
 Description:
 Filesize:  377.94 KB
 Viewed:  662 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

jh5_total_large.jpg



_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
Back to top
View user's profile Send private message Send e-mail Visit poster's website
TekniK



Joined: Aug 10, 2008
Posts: 1059

PostPosted: Sat Feb 28, 2009 4:53 am    Post subject: Reply with quote  Mark this post and the followings unread

jhaible wrote:
Here's a little preview of what I'm working on.
JH.


thumright
Back to top
View user's profile Send private message
mono-poly



Joined: Jul 07, 2004
Posts: 937
Location: Rotterdam, Netherlands
Audio files: 2

PostPosted: Sat Feb 28, 2009 5:09 am    Post subject: Reply with quote  Mark this post and the followings unread

Hmmm somehow i am getting interested Very Happy
Back to top
View user's profile Send private message
jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Sat Feb 28, 2009 5:43 am    Post subject: Reply with quote  Mark this post and the followings unread

Just finished PWM section of one channel.
PWM will be all discrete - no opamps in here!

Also, PWM works like in the CS-80: You can heavily overmodulate it without loosing the signal!

JH.

_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
Back to top
View user's profile Send private message Send e-mail Visit poster's website
dingebre



Joined: Aug 10, 2008
Posts: 270
Location: Salt Lake City, UT USA

PostPosted: Sun Mar 01, 2009 1:29 am    Post subject: Reply with quote  Mark this post and the followings unread

Well, you don't waste time do you Smile Congratulations on the progress.

I will purchase two PCB sets at least regardless, but was wondering what tracking accuracy you were shooting for?

For outputs, there will be a PWM amd sawtooth as in the JH-5, right?

Thanks for your efforts and for sharing your skill and talent.

David

_________________
David M. Ingebretsen, M.S., M.E.
Collision Forensics & Enginering, Inc.

dingebre@3dphysics.net
http://www.xmission.com/~dingebre/Synthasystem.html
Back to top
View user's profile Send private message
jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Sun Mar 01, 2009 2:31 am    Post subject: Reply with quote  Mark this post and the followings unread

dingebre wrote:
Well, you don't waste time do you Smile Congratulations on the progress.

I will purchase two PCB sets at least regardless, but was wondering what tracking accuracy you were shooting for?

For outputs, there will be a PWM amd sawtooth as in the JH-5, right?

Thanks for your efforts and for sharing your skill and talent.

David


Tracking: decent. Good enough for a mono synth. No efforts to get ultimate precision.

PWM and saw, yes.

JH.

_________________
"I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f)
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic Moderators: fonik, Scott Stites
Page 3 of 21 [520 Posts]
View unread posts
View new posts in the last week
Goto page: Previous 1, 2, 3, 4, 5, ..., 19, 20, 21 Next
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Jürgen Haible designs
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use