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> PHANToS LIVE improv
  PHANToS presents: Ghouls & Ghosts (various EM Halloween performances from previous years)
  PHANToS presents: The Monstrous Modulator (Modulator ESP's 2010/2011 halloween performances mix)
Please visit the chat
 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
LFO question
Post new topic   Reply to topic Moderators: dnny, Uncle Krunkus, v-un-v
Page 1 of 1 [9 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
neo644



Joined: Aug 18, 2005
Posts: 43
Location: Argentina

PostPosted: Mon May 01, 2006 9:01 pm    Post subject: LFO question Reply with quote  Mark this post and the followings unread

hey, looking at this panel layout:
http://www.musicfromouterspace.com/analogsynth/SOUNDLABMINISYNTH/faceplates/DanGraySoundlabface2u.pdf
in the LFO the switches have this labels:

- Square | Angular
- Ramp | Tri | Saw

compared to the original layout:
http://www.musicfromouterspace.com/analogsynth/SOUNDLABMINISYNTH/showbigpicture.php?PICNUM=2
which has:

- Ramps | Rect
- Ramp | Tri | Saw


Ramps == Square & Rect == Angular?
and then: could somebody show me which one is which? i'm kinda mixed up here. i would really apreciate if somebody could show me some graphs.

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



Joined: Mar 24, 2005
Posts: 105
Location: Italy

PostPosted: Tue May 02, 2006 6:39 am    Post subject: Re: LFO question Reply with quote  Mark this post and the followings unread

neo644 wrote:
could somebody show me which one is which? i'm kinda mixed up here. i would really apreciate if somebody could show me some graphs.


It should be something like shown in the picture...
I hope this helps...
ladislao


waveforms.JPG
 Description:
 Filesize:  17.66 KB
 Viewed:  2692 Time(s)

waveforms.JPG


Back to top
View user's profile Send private message
neo644



Joined: Aug 18, 2005
Posts: 43
Location: Argentina

PostPosted: Tue May 02, 2006 7:44 am    Post subject: Reply with quote  Mark this post and the followings unread

hey thanks alot!
just to be shure that i have it okey, would it be like this:

Square == Square
Angular == Rectangular
Ramp == Ramp
Tri == Triangular
Saw == Sine

and i assume the difference between the square and the rectangular si that the rectangular is pwm?
Back to top
View user's profile Send private message
ladislaobiro



Joined: Mar 24, 2005
Posts: 105
Location: Italy

PostPosted: Tue May 02, 2006 7:59 am    Post subject: Reply with quote  Mark this post and the followings unread

neo644 wrote:
1) Square == Square
2) Angular == Rectangular
3) Ramp == Ramp
4) Tri == Triangular
5) Saw == Sine


I would say:
1) yes.
2) yes, but I'm not sure...
3) yes.
4) yes.
5) no. I would say that a "saw waveform" is ramp or a triangular wave, but I don't know which one is the correct one... and maybe there is another option: a ramp waveform can be shaped in two different ways (see the picture), so it is possible that one is called "ramp" and the other is called "saw"... but I think I'm gving more confusion than help...
anyone else to clear it out?

neo644 wrote:
and i assume the difference between the square and the rectangular si that the rectangular is pwm?

yes, I think so...

that was my very best... Surprised

ladislao


ramps.JPG
 Description:
 Filesize:  7.01 KB
 Viewed:  2682 Time(s)

ramps.JPG


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



Joined: Mar 29, 2004
Posts: 954
Location: Berkeley, CA, US
Audio files: 3

PostPosted: Tue May 02, 2006 8:30 am    Post subject: Reply with quote  Mark this post and the followings unread

I think ramp and sawtooth are interchangeable. You have to specify, therefore, if the waveform is a downward or reverse or upward or topwise or whatever definition. I just got a Casio CZ-1000 last week, and I should know the answer to this. The vibrato has 4 waveform choices: the triangle, two ramps, and a square. I just can't remember what they refer to them as. Embarassed

And then, there's "pulse" and "square." Are they interchangeable?


Update: Here is a diagram from a MAX/MSP site:

http://www.creativesynth.com/MAXMSP/001-SynthBuildingMSP/images/img_06_waves.gif
Back to top
View user's profile Send private message Visit poster's website
neo644



Joined: Aug 18, 2005
Posts: 43
Location: Argentina

PostPosted: Tue May 02, 2006 9:23 am    Post subject: Reply with quote  Mark this post and the followings unread

so, here we have it, my LFO switches layout.
i was thinking, how would i use the square/rectangular ? because the other switch doesn't have an "off" position. does this switch, the square/rect overides the other one?


LFO.gif
 Description:
LFO switches layout
 Filesize:  4.68 KB
 Viewed:  2671 Time(s)

LFO.gif


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



Joined: Aug 14, 2005
Posts: 1307
Location: Björkvik, Sweden
Audio files: 2

PostPosted: Tue May 02, 2006 10:52 am    Post subject: Reply with quote  Mark this post and the followings unread

Isn't it: angular == ramp/saw/tri?

So Its either the square or one of the ramp/saw/tri-waveforms.

At least thats how mine works... But the angular-switch must be set to tri to have the square going...

_________________
YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom
Back to top
View user's profile Send private message
Pehr



Joined: Aug 14, 2005
Posts: 1307
Location: Björkvik, Sweden
Audio files: 2

PostPosted: Tue May 02, 2006 10:57 am    Post subject: Reply with quote  Mark this post and the followings unread

"angular" must come from "angle", which supports my theory "angular == ramp/saw/tri"
_________________
YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom
Back to top
View user's profile Send private message
neo644



Joined: Aug 18, 2005
Posts: 43
Location: Argentina

PostPosted: Tue May 02, 2006 5:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

yes, that totally makes sense.
plus, if your sound lab works like that, then there no argument jeje
i'll have to change the layout then
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: dnny, Uncle Krunkus, v-un-v
Page 1 of 1 [9 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
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