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 
 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
A keyboard for the Sound Lab
Post new topic   Reply to topic Moderators: dnny, Uncle Krunkus, v-un-v
Page 1 of 1 [18 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 08, 2006 3:19 am    Post subject: A keyboard for the Sound Lab
Subject description: as cheap as possible
Reply with quote  Mark this post and the followings unread

Hi,

I will make a SoundLab very soon (when I'll have enough money in fact), and I wanted to know if there is a way to make a keyboard.
I know I can buy a MIDI-CV controller which costs more or less 100€ and then buy a MIDI keyboard, but I don't have enough money.

In fact, I wanted to know if I can make a keyboard with a master MIDI keyboard by modifying this keyboard.
I can find keyboards for 50€ and I can spend 70€ in the whole keyboard at the maximum.

Oh, I forgot to add I'm a newbie in DIY and that the SoundLab will be my first DIY project (hopefully, Ray made a good step by step Razz)

I'll make the sequencer too when I'll have enough money and I wanted to know how many money it costed to persons who did it Wink

Kind regards and thank you for you help,
Nicolas
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4761
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Sun Oct 08, 2006 4:31 am    Post subject: Reply with quote  Mark this post and the followings unread

I would keep the master midi keyboard as it is, (especially if it works okay) and look at either building a Midi/CV to hang off it or a single bus or matrix style DIY keyboard (see Ray's site) later on. The SoundLab may end up costing more (or less) than you think anyway.
_________________
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
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 08, 2006 5:15 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks for your reply Uncle Krunkus Wink

In fact the SoundLab will cost me 100€ (I'll buy that : http://getbent.ecrater.com/product.php?pid=168702)

I can't find a Midi-CV for less then 80€ !
I don't know how I can make and how can a single bus or matrix style DIY keyboard work.
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4761
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Sun Oct 08, 2006 5:21 am    Post subject: Reply with quote  Mark this post and the followings unread

I doubt you could build a DIY keyboard controller for much less than 80E either.
_________________
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
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 08, 2006 5:23 am    Post subject: Reply with quote  Mark this post and the followings unread

Hm...
And what is the price of Ray's single bus or matrix style DIY keyboard ? (with components and so on)
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4761
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Sun Oct 08, 2006 6:54 am    Post subject: Reply with quote  Mark this post and the followings unread

I reckon it would be less than 60E, but I don't know for sure.
_________________
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
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 08, 2006 7:11 am    Post subject: Reply with quote  Mark this post and the followings unread

Uncle Krunkus wrote:
I reckon it would be less than 60E, but I don't know for sure.

And if I want to use for example my Roland D50 as a master keyboard, what can I do ?
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 08, 2006 7:26 am    Post subject: Reply with quote  Mark this post and the followings unread

Maybe I have found an answer to my question :
http://www.musicfromouterspace.com/analogsynth/midi2cv.htm

But I don't understand ANYTHING, I just understand that :
Posted Image, might have been reduced in size. Click Image to view fullscreen.

But I duno where is Midi In and CV-Out, I'm really a newb...


Someone tried to make this one ? How many does it cost ? Mr. Green
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
fonik



Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23

PostPosted: Sun Oct 08, 2006 8:15 am    Post subject: Reply with quote  Mark this post and the followings unread

you'll have to take a look at the schematics. there'll you find the answer. the midi input connections can be found in the lower right corner of the pcb layout (junction to R1 and PIN 3 of IC6. cv out can be found in the upper middle of the layout). ray says:

Quote:
Disclaimer!
BREADBOARD FIRST... This circuit does not work with all MIDI implementations. test to see if it will work with your synth before you do a lot of work and get disappointed. For a much cooler (albeit more expensive) MIDI to CV circuit go here: PAIA


there's no PCB to buy. so you will have to build it on a strip board or etch your own pcb...

cheers,
matthias
Back to top
View user's profile Send private message Send e-mail Visit poster's website
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 08, 2006 8:22 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks for your answer Matthias.

For the PCB, I can pay someone to make it in France Wink
I'll look this schematic in details and count how many it will cost me Wink


Just one question about the SoundLab, what is the voltage of all the Ceramic Capacitors ?
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
fonik



Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23

PostPosted: Sun Oct 08, 2006 12:30 pm    Post subject: Reply with quote  Mark this post and the followings unread

i'm not sure if the whole thing is worth the effort. what about the EFM midiport? i built one when tom sold it as a kit and now he offers an assembled and tested board:
http://www.ele4music.com/kits.html

concerning the ceramic caps: you might use X7R type caps (10%), you'll get good quality for less money. (stay away from Z5U = crap, only good for decoupling). harry bissels capacitor FAQ (VERY helpful):
http://www.musicsynthesizer.com/txt/caps2.txt

you don't have to care about the voltage at all.

cheers,
matthias
Back to top
View user's profile Send private message Send e-mail Visit poster's website
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 08, 2006 1:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

Thanks a lot Matthias Wink

What is the midiport you choosed ?


An other question, one more Razz Wink
Do you know where I can find cheap knobs MOTM/MOOG like ?

Thanks Wink
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
fonik



Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23

PostPosted: Sun Oct 08, 2006 2:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

noyau wrote:
What is the midiport you choosed?


once i built the RXCV Economy MIDI to CV converter which i use for my modular - works great, no longer available.
the 2nd one is the successor of the RXCV, the MidiPort 3503, which i use for my soundlab - some problems still (not troubleshooted yet, but i build it from a kit and i did't buy the tested and assembled version. see the 3500.doc for details...

you may want to take a look at this thread:
http://electro-music.com/forum/topic-13709.html
Back to top
View user's profile Send private message Send e-mail Visit poster's website
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sat Oct 14, 2006 3:17 am    Post subject: Reply with quote  Mark this post and the followings unread

65$ for the 6503 ? It is not as high as the other ones...
But there is only the PCB, not parts, no ?
And what's the difference between the 6503 and the 6505 ?
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
fonik



Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23

PostPosted: Sat Oct 14, 2006 2:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

noyau wrote:
But there is only the PCB, not parts, no ?

the PCB is assembled, all parts are mounted on the PCB, including the programmed PIC.

Quote:
And what's the difference between the 6503 and the 6505 ?

the 3503 derivates pitch cv, pitch bend cv and gate from one midi channel, the 3505 delivers only gate signals (up to 16) and is meant for drumcontrol... there's a 3500.doc explaining all modules of the 35er series.

cheers,
matthias
Back to top
View user's profile Send private message Send e-mail Visit poster's website
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 15, 2006 8:00 am    Post subject: Reply with quote  Mark this post and the followings unread

Thank you Matthias for your answer.

But I don't see very well the difference between the 3503 and the 3505... What is the best one for the SoundLab ?

Quote:
the 3503 derivates pitch cv, pitch bend cv and gate from one midi channel, the 3505 delivers only gate signals (up to 16) and is meant for drumcontrol

As I saw on the pdf document, it seems to be the opposite or maybe I didn't understand anything...

Kind regards,
Nicolas
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4761
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Sun Oct 15, 2006 8:40 am    Post subject: Reply with quote  Mark this post and the followings unread

For the SoundLab, you want the 3503.
_________________
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
noyau



Joined: Oct 08, 2006
Posts: 13
Location: Aix en Provence, France

PostPosted: Sun Oct 15, 2006 9:23 am    Post subject: Reply with quote  Mark this post and the followings unread

Okay, thank you Razz
Hopefully it is the less expensive Very Happy
I'll buy it so, as soon as I have my SL working Very Happy

An other question (I know, I am boring Mr. Green)
While buying that : http://getbent.ecrater.com/product.php?pid=168702 do you need to buy something other like Ray's PCB ?
Did someone already buy that kit ?

Kind regards,
Nicolas
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
Display posts from previous:   
Post new topic   Reply to topic Moderators: dnny, Uncle Krunkus, v-un-v
Page 1 of 1 [18 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 » MusicFromOuterSpace.com designs by Ray Wilson
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