electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
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 
Live streaming at radio.electro-music.com

  host / artist show at your time
<on air> Rob Adventures in Sound
Please visit the chat
 Forum index » DIY Hardware and Software » Les Hall's Projects including eChucK
The Karplus Strong eChucK DIY Project
Post new topic   Reply to topic Moderators: Inventor
Page 21 of 22 [542 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, ..., 19, 20, 21, 22 Next
Author Message
Peake



Joined: Jun 29, 2007
Posts: 1109
Location: Loss Angeles
Audio files: 3

PostPosted: Fri Apr 01, 2011 11:16 am    Post subject: Reply with quote  Mark this post and the followings unread

Dang Les, get some rest. Sorry about what you've been going through.

The orientation I posted above is derived from the note that one transistor of each pair is reversed, and that the collector goes to ground.

_________________
We are selling emotions, there are no emotions in a grid. -mwagener

"IC 741. Sometimes you don't want fidelity." -Small Bear Electronics Catalog
Back to top
View user's profile Send private message
Skrog Productions



Joined: Jan 07, 2009
Posts: 778
Location: Scottish Borders
Audio files: 87

PostPosted: Tue May 31, 2011 10:32 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi all , here's a track i done with the Dual Karplus Strong , a bit more droney than the usual EPICYCLUS stuff i do , this is all diy modular & drum machine , featuring the dual KS with an Echobase delay in each aux feedback loop.
Half way through the track a simple monosynth sequenced bass line & RM1X drums appear,
Each of the 2 KS cv ins are hooked up to a Mfos 16 step sequencer each which is clocked from the RM1X.
Both the Mfos sequencers run real slow (clock divide by 32 , Fonik divider)

i've been meaning to get a track done with these for a month or two for Les , Happy listening Very Happy

Dave
in
Scotland.


Karplus strong music 28th May 2011.mp3
 Description:
A track using my dual Karplus Strong & other diy synths , built with help from Electro-music.com :) :)

Download
 Filename:  Karplus strong music 28th May 2011.mp3
 Filesize:  35.65 MB
 Downloaded:  304 Time(s)


_________________
www.myspace.com/skrogproductions
Back to top
View user's profile Send private message
Skrog Productions



Joined: Jan 07, 2009
Posts: 778
Location: Scottish Borders
Audio files: 87

PostPosted: Tue May 31, 2011 10:37 am    Post subject: Reply with quote  Mark this post and the followings unread

Plugged in Karplus Strong


Karplus Strong track patch up.JPG
 Description:
 Filesize:  293.17 KB
 Viewed:  128 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Karplus Strong track patch up.JPG



_________________
www.myspace.com/skrogproductions
Back to top
View user's profile Send private message
mosc
Site Admin


Joined: Jan 31, 2003
Posts: 17618
Location: Allentown, PA
Audio files: 125
G2 patch files: 60

PostPosted: Wed Jun 01, 2011 11:25 am    Post subject: Reply with quote  Mark this post and the followings unread

Skrog Productions wrote:
Plugged in Karplus Strong


A beautiful rig. wow!

Great track. Thanks for posting.

_________________
--Howard
my music and other stuff
Back to top
View user's profile Send private message Send e-mail Visit poster's website AIM Address
Skrog Productions



Joined: Jan 07, 2009
Posts: 778
Location: Scottish Borders
Audio files: 87

PostPosted: Wed Jun 01, 2011 12:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks Howard , electro-music.com has encouraged me to build this Smile
_________________
www.myspace.com/skrogproductions
Back to top
View user's profile Send private message
abstraktor



Joined: Apr 27, 2009
Posts: 189
Location: glasgow, scotland

PostPosted: Wed Jun 01, 2011 12:55 pm    Post subject: Reply with quote  Mark this post and the followings unread

jeez dave what a modular set up. Now I know why there's all these windfarms getting put up down your bit -its your current draw! Laughing
Back to top
View user's profile Send private message
Skrog Productions



Joined: Jan 07, 2009
Posts: 778
Location: Scottish Borders
Audio files: 87

PostPosted: Wed Jun 01, 2011 1:06 pm    Post subject: Reply with quote  Mark this post and the followings unread

Heh Smile


Daves modular supply.JPG
 Description:
 Filesize:  64.74 KB
 Viewed:  106 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Daves modular supply.JPG



_________________
www.myspace.com/skrogproductions
Back to top
View user's profile Send private message
abstraktor



Joined: Apr 27, 2009
Posts: 189
Location: glasgow, scotland

PostPosted: Wed Jun 01, 2011 1:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

Laughing is that your back garden? ha ha
Back to top
View user's profile Send private message
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 5978
Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Thu Jun 02, 2011 6:23 am    Post subject: Reply with quote  Mark this post and the followings unread

Nice tune, Dave. I cooked spaghetti with it!

Les

_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
jean bender



Joined: Feb 21, 2010
Posts: 133
Location: france

PostPosted: Mon Jun 06, 2011 12:13 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi Inventor !!

Do you think i could order you some pcbs from your Karplus Strong, or i'm coming too late for it ? I'm really interested in it !

thanks for all !

_________________
http://h.a.k.free.fr/

www.electroncanon.org
Back to top
View user's profile Send private message
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 5978
Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Mon Jun 06, 2011 3:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

deadbeat wrote:
Hi Inventor !!

Do you think i could order you some pcbs from your Karplus Strong, or i'm coming too late for it ? I'm really interested in it !

thanks for all !


Well, i have three boards left to sell, and you can have all three if you like, but i have to get your address and paypal payment by tomorrow morning, tuesday June 7 2011 because my ride to the post office goes on a long vacation tomorrow at noon. I will email you with the same information. If not, you'll have to wait three months for the boards.

Les

_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
jnuaury



Joined: Feb 28, 2008
Posts: 162
Location: chicago
Audio files: 9

PostPosted: Thu Jun 09, 2011 12:51 am    Post subject: Reply with quote  Mark this post and the followings unread

looks like i have some bad timing...
_________________
az/gde
Flickr
YouTube
Back to top
View user's profile Send private message AIM Address
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 5978
Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Fri Jun 10, 2011 4:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

jnuaury wrote:
looks like i have some bad timing...


Sorry about that. If there is enough demand for another tun I'll make one.

Les

_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
jeff-o



Joined: Jul 19, 2009
Posts: 97
Location: Ontario, Canada

PostPosted: Tue Jun 14, 2011 7:45 am    Post subject: Reply with quote  Mark this post and the followings unread

I've got two built & functioning KS11 boards that I'm deciding if I should sell. I have no modular rack system or anything to build them into; they were simply a stepping-stone to a larger project. If anyone is interested I may be willing to part with them...
Back to top
View user's profile Send private message
Jaba



Joined: Feb 27, 2009
Posts: 47
Location: Genova, Italy

PostPosted: Mon Jun 27, 2011 7:11 am    Post subject: Reply with quote  Mark this post and the followings unread

Hello,

any KS11 PSC presently available ?
I would like to buy one, please

Paolo
Back to top
View user's profile Send private message
Jaba



Joined: Feb 27, 2009
Posts: 47
Location: Genova, Italy

PostPosted: Mon Jun 27, 2011 7:13 am    Post subject: Reply with quote  Mark this post and the followings unread

well, ok ... , sorry I meant a PCB, an unpopulated board

Paolo
Back to top
View user's profile Send private message
jean bender



Joined: Feb 21, 2010
Posts: 133
Location: france

PostPosted: Mon Jun 27, 2011 7:27 am    Post subject: Reply with quote  Mark this post and the followings unread

MMM i've got a kind of "stupid" question...

Is the stim in the KPS trigger in ?? I'm a bit lost...

And, i've seen some pictures with 2 cvs in for both vco & lfo, are the seconds cv in taken from another place of the pcb, or not ?

thanks for helping me !

cheers

_________________
http://h.a.k.free.fr/

www.electroncanon.org
Back to top
View user's profile Send private message
jean bender



Joined: Feb 21, 2010
Posts: 133
Location: france

PostPosted: Tue Jul 05, 2011 1:17 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi !:!

Nobody can answer me ?? Please ! Should i trig it via a "normal" sequencer, or should i prefer use a "gate" one ??

thanks !

_________________
http://h.a.k.free.fr/

www.electroncanon.org
Back to top
View user's profile Send private message
rosch



Joined: Oct 03, 2009
Posts: 162
Location: germany

PostPosted: Tue Jul 05, 2011 1:25 am    Post subject: Reply with quote  Mark this post and the followings unread

as far as i know you could feed in whatever you like. but i think a short pulse is enough.
the answer should be somewhere in this thread.
Back to top
View user's profile Send private message
jean bender



Joined: Feb 21, 2010
Posts: 133
Location: france

PostPosted: Tue Jul 05, 2011 1:37 am    Post subject: Reply with quote  Mark this post and the followings unread

ok thanks !!

i've read the whole thread few times, but sometimes, it's difficult for me to understand how everything works... héhé

_________________
http://h.a.k.free.fr/

www.electroncanon.org
Back to top
View user's profile Send private message
Jaba



Joined: Feb 27, 2009
Posts: 47
Location: Genova, Italy

PostPosted: Tue Jul 05, 2011 2:56 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi deadbeat,

I have not tried this particular circuit yet, but as far as I understand the "stim" input is not exactly a trigger. It is a stimulus signal to the resonator that is made up by delay line + filter + summing amp + eventual external devices in the feedback loop.

You can actually use several kind of signals as a "stim", depending on what your purpose is: pulses of any kind, short noise bursts, continuous noise, ...

Said that, such input can actually be used as some sort of trigger too: send it a trigger pulse and the circuit will produce a sound, depending on all the settings. Due to C10, the delay line input is AC coupled, so you can even use a gate signal as an input, but it will produce a sound when gate goes up and then another one (probably identical) when gate goes down. This may not be what you want.

About the other question on CVs, I didn't quite get it.
The VCO CV of course drives the VCO, and in typical KS applications it will determine the pitch of the output signal too.
The VCF CV obviously drives the cutoff frequency of the filter.
In typical KS applications, both CVs are often tied together, but it is useful to have them separate if you want to drive them independently; e.g. you can leave the VCF open and use something else in the external loop to filter the feedback signal, or you can modulate the filter in order to obtain brighter notes and duller ones at the same pitch, or short notes and long ones, or whatever you like.

I hope this can help you.

BTW, I don't think it was a stupid question at all.
If it is still unclear, try reading some theory about the Karpus-Strong algorhythm, or ask here again, or both.

cheers
Paolo
Back to top
View user's profile Send private message
jean bender



Joined: Feb 21, 2010
Posts: 133
Location: france

PostPosted: Tue Jul 05, 2011 4:55 am    Post subject: Reply with quote  Mark this post and the followings unread

YEAH !! Thanks a lot !! you help me to understand it better Paolo !

About cvs, i was trying to figure how the second set of cv in was built, if they were mounted in parallel of the first vco & cv in or if they were taken from others points on the pcb.

thx again !

_________________
http://h.a.k.free.fr/

www.electroncanon.org
Back to top
View user's profile Send private message
Jaba



Joined: Feb 27, 2009
Posts: 47
Location: Genova, Italy

PostPosted: Tue Jul 12, 2011 1:16 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi,
I understand that there are no KS PCBs available at present.
Is any file of its copper side available for "press'n peel" DIY ? if it is single sided I may try to make one for myself at home; otherwise, I'll just have to wait and hope for another run, or make it on perfboard based on the schematic.
thank you
Back to top
View user's profile Send private message
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 5978
Location: San Antonio, Tx, USA
Audio files: 258

PostPosted: Wed Jul 13, 2011 2:01 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi folks, i apologize for being away so long, i got sucked into the world of Second Life with a hot product and a business venture.

There are no more PCBs available, however the design is public domain so you can make your own. Go to the eChucK forum and look at the repository for the files.

If anyone would like to make a run of the boards, please do so and post about it in this thread.

I'm sorry that I have been away, I will try to check in more often Sad

Les

_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
wmonk



Joined: Sep 15, 2008
Posts: 489
Location: Enschede, the Netherlands
Audio files: 13

PostPosted: Thu Jul 14, 2011 2:40 am    Post subject: Reply with quote  Mark this post and the followings unread

Inventor wrote:

If anyone would like to make a run of the boards, please do so and post about it in this thread.

I'm sorry that I have been away, I will try to check in more often Sad

Les

I could do a run of these, after I finished building my own, so i know what possible changes need to be applied.

Very Happy
Cheers,
Woody

_________________
Weblog!
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: Inventor
Page 21 of 22 [542 Posts]
View unread posts
View new posts in the last week
Goto page: Previous 1, 2, 3, ..., 19, 20, 21, 22 Next
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Les Hall's Projects including eChucK
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
e-m mkii

Please support our site. If you click through and buy from
our affiliate partners, we earn a small commission.


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