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 
 Forum index » DIY Hardware and Software » Arduino
Simple VCA design
Post new topic   Reply to topic
Page 1 of 1 [7 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
synthjakk



Joined: Feb 12, 2018
Posts: 19
Location: UK

PostPosted: Tue Mar 27, 2018 7:44 am    Post subject: Simple VCA design Reply with quote  Mark this post and the followings unread

I have built a simple VCO, which outputs a sawtooth and a gate signal (0 Low, 5v High). No ADSR, or anything fancy. I want to add a simple VCA for these two signals, as well as a volume control. Can anybody recommend a design direction or topology? most online examples seem to be rather complicated. Thanks


schem.PNG
 Description:
 Filesize:  14.93 KB
 Viewed:  5 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

schem.PNG



Last edited by synthjakk on Tue Mar 27, 2018 8:59 am; edited 1 time in total
Back to top
View user's profile Send private message
icnagy



Joined: Jan 29, 2017
Posts: 3
Location: Glasgow, UK

PostPosted: Tue Mar 27, 2018 8:34 am    Post subject: Reply with quote  Mark this post and the followings unread

Have you looked at the farmVCA from Motohiko Takeda?

http://www.aleph.co.jp/~takeda/radio/farmVCA.html
Back to top
View user's profile Send private message
synthjakk



Joined: Feb 12, 2018
Posts: 19
Location: UK

PostPosted: Tue Mar 27, 2018 8:55 am    Post subject: Reply with quote  Mark this post and the followings unread

I guess it is not is English? I only get a bunch of ? when I open it
Back to top
View user's profile Send private message
icnagy



Joined: Jan 29, 2017
Posts: 3
Location: Glasgow, UK

PostPosted: Tue Mar 27, 2018 8:59 am    Post subject: Reply with quote  Mark this post and the followings unread

Use Chrome's translate feature, it does a pretty good job.
Back to top
View user's profile Send private message
synthjakk



Joined: Feb 12, 2018
Posts: 19
Location: UK

PostPosted: Tue Mar 27, 2018 9:49 am    Post subject: Reply with quote  Mark this post and the followings unread

Apologies, maybe it is my chrome, But it doesn't seem to work for me. Could you post the schematic that is on the site? I cant seem to see anything Smile
Back to top
View user's profile Send private message
Blue Hell
Site Admin


Joined: Apr 03, 2004
Posts: 22430
Location: The Netherlands, Enschede
Audio files: 216
G2 patch files: 319

PostPosted: Tue Mar 27, 2018 10:33 am    Post subject: Reply with quote  Mark this post and the followings unread

http://www.aleph.co.jp/~takeda/radio/img/farmVCA-scheme.gif ... probably ... anyway .. 2nd unreadable link on that page .. the 3rd one has a PCB layout.
_________________
Jan
Back to top
View user's profile Send private message Visit poster's website
LFLab



Joined: Dec 17, 2009
Posts: 458
Location: Rosmalen, Netherlands

PostPosted: Wed Mar 28, 2018 7:47 am    Post subject: Reply with quote  Mark this post and the followings unread

Slightly more complicated than the Takeda circuit:
http://kassu2000.blogspot.co.uk/2015/10/vca.html
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic
Page 1 of 1 [7 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Arduino
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