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
  Rob Adventures in Sound
Please visit the chat
 Forum index » DIY Hardware and Software » Thomas Henry designs
CMOS ADSR
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 2 [39 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Goto page: 1, 2 Next
Author Message
Thomas_Henry



Joined: Jul 24, 2009
Posts: 127
Location: N. Mankato, MN

PostPosted: Tue Aug 07, 2012 4:51 pm    Post subject: CMOS ADSR
Subject description: Includes a built-in light show
Reply with quote  Mark this post and the followings unread

Hello everyone,

Here's the next project. This is a full-featured ADSR with indicator lights. It was really fun to come up with the logic for this---lots and lots of scribbling on scratch paper was required. The hard part, of course, was figuring out how to indicate the Sustain phase. That kept me going for a while.

Note that it can also be used in AR and AD mode with equal ease.

Thomas Henry


Sheet 1.jpg
 Description:
Schematic --- Sheet 1
 Filesize:  106.93 KB
 Viewed:  629 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Sheet 1.jpg



Sheet 2.jpg
 Description:
Schematic --- Sheet 2
 Filesize:  60.17 KB
 Viewed:  455 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Sheet 2.jpg



Parts List.jpg
 Description:
Parts List
 Filesize:  62.48 KB
 Viewed:  457 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Parts List.jpg


Back to top
View user's profile Send private message
andrewF



Joined: Dec 29, 2006
Posts: 1171
Location: australia
Audio files: 4

PostPosted: Tue Aug 07, 2012 6:09 pm    Post subject: Reply with quote  Mark this post and the followings unread

love the Leds for each stage Cool what a great feature

Thanks for sharing Thomas
Back to top
View user's profile Send private message Visit poster's website
v-un-v
Janitor
Janitor


Joined: May 16, 2005
Posts: 8930
Location: Birmingham, England, UK
Audio files: 11
G2 patch files: 1

PostPosted: Wed Aug 08, 2012 11:16 am    Post subject: Reply with quote  Mark this post and the followings unread

We like lightshows! Very Happy Very Happy
_________________
ACHTUNG!
ALLES TURISTEN UND NONTEKNISCHEN LOOKENPEEPERS!
DAS KOMPUTERMASCHINE IST NICHT FÜR DER GEFINGERPOKEN UND MITTENGRABEN! ODERWISE IST EASY TO SCHNAPPEN DER SPRINGENWERK, BLOWENFUSEN UND POPPENCORKEN MIT SPITZENSPARKSEN.
IST NICHT FÜR GEWERKEN BEI DUMMKOPFEN. DER RUBBERNECKEN SIGHTSEEREN KEEPEN DAS COTTONPICKEN HÄNDER IN DAS POCKETS MUSS.
ZO RELAXEN UND WATSCHEN DER BLINKENLICHTEN.
Back to top
View user's profile Send private message Send e-mail
thebot



Joined: Mar 07, 2012
Posts: 13
Location: Edinburgh, Scotland

PostPosted: Wed Aug 08, 2012 12:51 pm    Post subject: Reply with quote  Mark this post and the followings unread

Love the idea of four separate LEDs for each stage. This would make a great first ADSR, would really help new synthesists to visualise the typical ADSR sounds. Lovely design Thomas, thanks for sharing.
Back to top
View user's profile Send private message
v-un-v
Janitor
Janitor


Joined: May 16, 2005
Posts: 8930
Location: Birmingham, England, UK
Audio files: 11
G2 patch files: 1

PostPosted: Wed Aug 08, 2012 1:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thinking about it, if one made the front panel to this design out of white perspex, and used the LED's (each coloured differently- naturally) to illuminate the front panel.... wouldn't that look nice? Idea
_________________
ACHTUNG!
ALLES TURISTEN UND NONTEKNISCHEN LOOKENPEEPERS!
DAS KOMPUTERMASCHINE IST NICHT FÜR DER GEFINGERPOKEN UND MITTENGRABEN! ODERWISE IST EASY TO SCHNAPPEN DER SPRINGENWERK, BLOWENFUSEN UND POPPENCORKEN MIT SPITZENSPARKSEN.
IST NICHT FÜR GEWERKEN BEI DUMMKOPFEN. DER RUBBERNECKEN SIGHTSEEREN KEEPEN DAS COTTONPICKEN HÄNDER IN DAS POCKETS MUSS.
ZO RELAXEN UND WATSCHEN DER BLINKENLICHTEN.
Back to top
View user's profile Send private message Send e-mail
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4748
Location: Nambucca Heads, Australia
Audio files: 51
G2 patch files: 1

PostPosted: Wed Aug 08, 2012 2:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

Beautiful! Cool
_________________
What makes a space ours, is what we put there, and what we do there.
Back to top
View user's profile Send private message Visit poster's website
Boogdish



Joined: Sep 21, 2009
Posts: 122
Location: Bloomington, IN

PostPosted: Wed Aug 08, 2012 6:11 pm    Post subject: Reply with quote  Mark this post and the followings unread

Very cool, thanks for sharing Thomas! This would be a great project to use clear shaft pots with LEDs under them. I agree with "thebot" this would be a great module for showing people new to synthesis how it works.
Back to top
View user's profile Send private message Visit poster's website
ungleichklang



Joined: Dec 03, 2011
Posts: 70
Location: East-Belgium

PostPosted: Thu Aug 09, 2012 5:17 am    Post subject: Reply with quote  Mark this post and the followings unread

is someone doing a PCB run on this project or has some PCB-Layouts - I'am very interrested
_________________
greetings from belgium, Sascha

My new blogspot: http://ungleichklang.blogspot.com
My Youtube-Channel: http://www.youtube.com/user/ungleichklang
My old google-site: https://sites.google.com/site/ungleichklang/home/s-diy

Linux Musician
Back to top
View user's profile Send private message Visit poster's website
Appliancide*



Joined: Jul 04, 2007
Posts: 117
Location: Paul lives in Thief River Falls

PostPosted: Sun Aug 12, 2012 11:35 am    Post subject: Reply with quote  Mark this post and the followings unread

This is great! With all of the logic for the leds worked out already, it shouldn't be too much work to derive "stage high" gates and end out triggers.
_________________
http://appliancide/blogspot.com
Back to top
View user's profile Send private message
elmegil



Joined: Mar 20, 2012
Posts: 1346
Location: Chicago
Audio files: 14

PostPosted: Sun Aug 12, 2012 12:11 pm    Post subject: Reply with quote  Mark this post and the followings unread

A relative noob asks: what are "Stage high" Gates? End triggers seem obvious enough....
Back to top
View user's profile Send private message
Appliancide*



Joined: Jul 04, 2007
Posts: 117
Location: Paul lives in Thief River Falls

PostPosted: Sun Aug 12, 2012 1:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

I was picturing a gate out that would be held high while the corresponding led was lit, if that makes it easier to grok.
_________________
http://appliancide/blogspot.com
Back to top
View user's profile Send private message
elmegil



Joined: Mar 20, 2012
Posts: 1346
Location: Chicago
Audio files: 14

PostPosted: Sun Aug 12, 2012 2:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

Ok, that was what I was thinking it must be given context, but I hadn't heard of such things being used/useful before Smile

Danke!
Back to top
View user's profile Send private message
ungleichklang



Joined: Dec 03, 2011
Posts: 70
Location: East-Belgium

PostPosted: Wed Aug 15, 2012 6:37 am    Post subject: Reply with quote  Mark this post and the followings unread

may I ask a noob question to this project regarding the shematics??..

on sheet 1 at the trigger and gate jack there are lines with arrows
near trigger one between the J1 and C1
and near gate between J2 and R16, here the arrow is pointing from +15V

is this a potentiometer, a direct connection or ... ???

Saw the arrows on potentiometers or trimmer, but never like that ...

please could someone explain??

_________________
greetings from belgium, Sascha

My new blogspot: http://ungleichklang.blogspot.com
My Youtube-Channel: http://www.youtube.com/user/ungleichklang
My old google-site: https://sites.google.com/site/ungleichklang/home/s-diy

Linux Musician
Back to top
View user's profile Send private message Visit poster's website
Blue Hell
Site Admin


Joined: Apr 03, 2004
Posts: 20280
Location: The Netherlands, Enschede
Audio files: 143
G2 patch files: 318

PostPosted: Wed Aug 15, 2012 6:44 am    Post subject: Reply with quote  Mark this post and the followings unread

These are switches in the connectors which are opened when a plug is put in.
_________________
Jan
Back to top
View user's profile Send private message Visit poster's website
schmidtc



Joined: May 16, 2009
Posts: 34
Location: Boston

PostPosted: Tue Aug 21, 2012 10:23 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks TH! Further proof you are the master of functionality and simplicity in design. A few questions. . .

1.) Output is 0 to +5V log response?

2.) The switching jack on the trigger in allows gate only adsr?

3.) What's the range switch do?

4.) Any info on the times of the envelope stages?

If this is too many questions, "build it and see" is an acceptable response Wink
Back to top
View user's profile Send private message
fonik



Joined: Jun 07, 2006
Posts: 3722
Location: Germany
Audio files: 23

PostPosted: Tue Sep 11, 2012 6:31 am    Post subject: Reply with quote  Mark this post and the followings unread

schmidtc wrote:
2.) The switching jack on the trigger in allows gate only adsr?

that's how i understand it, and the gate input is normalled to 15V to aloow trigger only operation.

Quote:
3.) What's the range switch do?

changes the timing cap value to allow for slower envelopes.


re stage gates and end trigger:
i thought of adding another TL074 to buffer these outputs.
the end trigger would occure as soon as the ADSR goes into the release stage, otherwise one would have to add an additional comparator.
is an end trigger useful when in ADSR mode?

_________________
Posted Image, might have been reduced in size. Click Image to view fullscreen.
cheers,
matthias
____________
fonitronik at
FlickR (pix) / SoundCloud (sounds) / YouTube (vids) / Vimeo (vids) / facebook (news)
Back to top
View user's profile Send private message Send e-mail Visit poster's website
marvkaye



Joined: Mar 14, 2011
Posts: 225
Location: Fla

PostPosted: Wed Sep 12, 2012 10:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

As much as I'd prefer a nice double-sided through-hole plated PCB for this incredibly cool EG (thank you Thomas, you never fail to amaze...) I confess that I'm not up to the task and so decided to take the coward's way out and create a strip board layout instead. After a few false starts I finally managed to come up with a reasonable design, finished size is just under 1.5 X 4.5 inches (37 x 114mm for those of you who prefer metric) and thought I'd share it here for anyone who's itching to build one of these in a more permanent format than breadboard.


Posted Image, might have been reduced in size. Click Image to view fullscreen.

Posted Image, might have been reduced in size. Click Image to view fullscreen.


Tomorrow I'll see about getting another picture up with all of the panel connections (green squares) labelled... please note, I have not physically built this yet but did double-check it for accuracy using the test mode in LochMaster, which actually works pretty well. I'll give it another once over tomorrow with less tired eyes, just to be sure. Please let me know if you spot any glaring errors. I hope you find it useful.

<marv>

(edit... I almost forgot... the connection between IC1 pin 2 and IC4 pin 5 needs to be done with a jumper wire that's not shown on the stripboard. )

(edit 2... here's the panel wiring map...

Posted Image, might have been reduced in size. Click Image to view fullscreen.

<m>

Last edited by marvkaye on Thu Sep 13, 2012 7:42 am; edited 1 time in total
Back to top
View user's profile Send private message
elmegil



Joined: Mar 20, 2012
Posts: 1346
Location: Chicago
Audio files: 14

PostPosted: Thu Sep 13, 2012 5:12 am    Post subject: Reply with quote  Mark this post and the followings unread

For Lochmaster, on the rear view, the cuts are obvious enough, but what are all the circles? They don't seem to correspond to the pins coming through the board, but I confess I haven't counted out to triple check that.
Back to top
View user's profile Send private message
-minus-



Joined: Oct 26, 2008
Posts: 750

Audio files: 13

PostPosted: Thu Sep 13, 2012 5:57 am    Post subject: Reply with quote  Mark this post and the followings unread

I think the circles are solder. The board is flipped bottom to top rather than left to right. I didn't know the circuit layout could be tested before building. That's a good feature.

It's probably just me, but I would be trying to make the layout fit in just over half that space. I'd try not to run jumpers under the IC's (or over as I have seen before elsewhere). I never run components diagonally. I don't even like having them horizontally orientated, unless to do otherwise will increase the footprint substantially. Anyway, I hope it functions first time for you. That's always a nice feeling.
Back to top
View user's profile Send private message
elmegil



Joined: Mar 20, 2012
Posts: 1346
Location: Chicago
Audio files: 14

PostPosted: Thu Sep 13, 2012 6:25 am    Post subject: Reply with quote  Mark this post and the followings unread

Ah, yes, top to bottom lines up. Thank you Smile
Back to top
View user's profile Send private message
marvkaye



Joined: Mar 14, 2011
Posts: 225
Location: Fla

PostPosted: Thu Sep 13, 2012 9:11 am    Post subject: Reply with quote  Mark this post and the followings unread

Bump to point back to the edit above where I added the panel wiring map to the strip board layout post.

-minus- wrote:
I didn't know the circuit layout could be tested before building. That's a good feature.


Yeppers, it's very cool... the "tester" lights up all the components and strips connected to its "probe". Really aids in the greenlining process.
Back to top
View user's profile Send private message
marvkaye



Joined: Mar 14, 2011
Posts: 225
Location: Fla

PostPosted: Thu Sep 13, 2012 10:26 am    Post subject: Reply with quote  Mark this post and the followings unread

elmegil wrote:
For Lochmaster, on the rear view, the cuts are obvious enough, but what are all the circles? They don't seem to correspond to the pins coming through the board, but I confess I haven't counted out to triple check that.


Just FYI, all of the "cuts" that are centered on holes are actually done with an 1/8" drill bit. Stick it in a pin vise, put the tip in the proper hole and give it a couple twists... pretty quick and painless. The narrow cuts between holes I do with a thin saw blade in a Dremel... they can be done with a razor knife but I find the mini-saw approach to be much more controllable and yields superior results. JIC you're thinking about getting started w/ strip board yourself. Search around and take a look at some of Uncle Krunkus's examples... he's a real artist with it.

<m>
Back to top
View user's profile Send private message
elmegil



Joined: Mar 20, 2012
Posts: 1346
Location: Chicago
Audio files: 14

PostPosted: Thu Sep 13, 2012 10:41 am    Post subject: Reply with quote  Mark this post and the followings unread

Right, I built minus' TR-808 drum voice stripboard, and figured that out pretty quickly (about the drill bit). Although my stripboard must be slightly wider or something because I still had to go back and clean up with an exacto (aka razor knife).

I've never had ANY luck using a dremel for anything of any precision, so I think I'll stick with the knife for the narrow cuts too Very Happy Cutting wheels in particular always seem to fly apart at the worst possible moment, and I don't have any kind of reciprocating dremel or attachment. Maybe a teensy diamond head, who knows, but I'd probably end up cutting 3 strips instead of just one.
Back to top
View user's profile Send private message
-minus-



Joined: Oct 26, 2008
Posts: 750

Audio files: 13

PostPosted: Thu Sep 13, 2012 11:15 am    Post subject: Reply with quote  Mark this post and the followings unread

Actually, I think that was slacker I think who originally posted that stripboard of the 808 kick drum.

Yes, if it weren't for uncle krunkus and his wsg stripboard, I may never have ended up on the stripboard path.

A 3MM drill bit works for me, but I guess you could go up to 4MM if it wasn't wide enough to cut the width of the tracks.

Anyway, I wouldn't mind giving this circuit a go!
Back to top
View user's profile Send private message
wmonk



Joined: Sep 15, 2008
Posts: 485
Location: Enschede, the Netherlands
Audio files: 13

PostPosted: Sat Sep 15, 2012 5:00 am    Post subject: Reply with quote  Mark this post and the followings unread

Have to say this is a beautiful design. Wow, so simple Smile
Thomas did it again!

Now I'm going to build one on stripboard Smile

Perhaps a nice add-on which would be very unique is to connect a buffer to the same place as the LEDs, that way you have gate outs depending on the stage. Smile
Edit, oh, I forgot to read all comments again, it was already mentioned. Cool

_________________
Weblog!
Kits for synthesiser modules in Europe
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 2 [39 Posts]
View unread posts
View new posts in the last week
Goto page: 1, 2 Next
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Thomas Henry 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
AmbiphonicDSP

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