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State Machine
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Joined: Apr 17, 2006
Posts: 2809
Location: New York
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tazer
Joined: Oct 18, 2010
Posts: 49
Location: UK
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 Posted: Thu Mar 10, 2011 4:44 am Post subject:
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that is a serious bit of breadboarding there Bill!!  |
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monokinetic
Joined: Aug 01, 2006
Posts: 100
Location: prague
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| Posted: Fri Mar 11, 2011 1:50 pm Post subject:
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Bill, wow man you really have been busy I see 
I'm looking forward to this even more now. I guess we will need some firmware additions to cater for syncing two chips, is Yerpa working on that?
On another note, I got a reply from Catweazle and he very kindly said that he could provide all of the old fraktal synth demo files, we just need somewhere to host them....
Anyone have some server space? Maybe they could be linked to from Yerpa's fraktal synth page?
David |
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State Machine
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Joined: Apr 17, 2006
Posts: 2809
Location: New York
Audio files: 24
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| Posted: Fri Mar 11, 2011 4:10 pm Post subject:
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Hi David
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Bill, wow man you really have been busy I see |
Trying to be, yes ...  I feel the need to be a productive citizen 
| Quote: | | I'm looking forward to this even more now. I guess we will need some firmware additions to cater for syncing two chips, is Yerpa working on that? |
The hope is to release a schematic so that a standard "dual 18F processor version" hardware platform could be established so that folks could use if they wished to develop more patches. I specify the "18F" because I realize there has been talk of a DSPic version also.
I will also provide the Express PCB, PCB files if one wished to have them made but I will also have them available at low cost to anyone who wishes once completed.
I will probably break down and purchase the CCS Compiler (PCH52112-320, Command Line Version working under the MPLAB IDE) for $200.00 so that I could develop patches this board. To go the route of converting the syntax to the "C18" compiler is something I do not want to attempt nor have the time for.
| Quote: | | On another note, I got a reply from Catweazle and he very kindly said that he could provide all of the old fraktal synth demo files, we just need somewhere to host them.... |
Very nice, if anything, a simple BOX.NET area can be set up to DL them.
Bill |
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JLS
Joined: Nov 05, 2005
Posts: 490
Location: Czech
Audio files: 30
G2 patch files: 316
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State Machine
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Joined: Apr 17, 2006
Posts: 2809
Location: New York
Audio files: 24
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| Posted: Sat Mar 12, 2011 12:22 pm Post subject:
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| Quote: | This is my experiment and hardware modification Smile
- base is pic fraktal synth
- added delay PT2399
- and some analog modulation like semi-modular (all knobs and delay)
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Oh NICE prototype example !!!! Would love to hear the PT2399 being fed by the synthesizer ! I have a few chips on the way. 
Can't wait for the samples.
Bill |
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catweazle
Joined: Feb 25, 2008
Posts: 28
Location: germany
Audio files: 3
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catweazle
Joined: Feb 25, 2008
Posts: 28
Location: germany
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catweazle
Joined: Feb 25, 2008
Posts: 28
Location: germany
Audio files: 3
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| Posted: Thu Mar 17, 2011 7:03 pm Post subject:
Fraktalsynth Sample |
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some wired "melody" from the max-patch ...
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MaxMsp_Fraktalsynth_31_5_115.mp3 |
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MaxMsp_Fraktalsynth_7_5_119.mp3 |
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MaxMsp_Fraktalsynth_0_5_209.mp3 |
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Last edited by catweazle on Fri Mar 18, 2011 8:44 am; edited 1 time in total |
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JLS
Joined: Nov 05, 2005
Posts: 490
Location: Czech
Audio files: 30
G2 patch files: 316
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yerpa58
Joined: Mar 08, 2008
Posts: 57
Location: Wisconsin
Audio files: 4
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| Posted: Fri Mar 18, 2011 1:41 pm Post subject:
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| Thanks for posting again, catweazle! The source code for Nintendo looks interesting, especially the 12 db/oct filter. Any sound examples available to hear this filter? |
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catweazle
Joined: Feb 25, 2008
Posts: 28
Location: germany
Audio files: 3
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| Posted: Fri Mar 18, 2011 4:35 pm Post subject:
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@yerpa
the filter is "stolen" from a sourcecode for a C64 SID emulator for the NDS.
I have to look for my NDS and post some samples soon.
For those who haven't got a NintendoDS.
The .NDS file runs well in a emulator
http://www.nogba.com/no$gba-download.htm
Samples don't cover the whole range of possibilities ... |
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JLS
Joined: Nov 05, 2005
Posts: 490
Location: Czech
Audio files: 30
G2 patch files: 316
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| Posted: Sat Mar 26, 2011 7:18 am Post subject:
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Little examples from my modification PIC Fraktal synth
Base is basic chaos (Logistic equation) and PT2399 delay chip controlled from PIC
Pure sound - only normalize and fade !
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Log-chaos.mp3 |
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| modulation speed/pitch example |
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Log-chaos-mod1.mp3 |
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Log-chaos-mod2.mp3 |
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| delay and pitch modulation example |
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Log-chaos-mod3.mp3 |
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| some other modulation example |
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Log-chaos-mod4.mp3 |
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_________________
Sorry my bad English
https://soundcloud.com/1jls
https://soundcloud.com/user-819966312-266044932
https://github.com/jlswbs |
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State Machine
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Joined: Apr 17, 2006
Posts: 2809
Location: New York
Audio files: 24
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| Posted: Sat Mar 26, 2011 12:37 pm Post subject:
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| Quote: | Little examples from my modification PIC Fraktal synth Smile
Base is basic chaos (Logistic equation) and PT2399 delay chip controlled from PIC
Pure sound - only normalize and fade !
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I like these examples. The PT2399 really adds that "other worldly" dimension. Now I am really hyped to use these chip for my synthesizer.
Thanks for posting!
Bill |
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yerpa58
Joined: Mar 08, 2008
Posts: 57
Location: Wisconsin
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| Posted: Mon Mar 28, 2011 12:36 pm Post subject:
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| @JLS: Nice samples, thanks for posting! |
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MickSoFar
Joined: Aug 21, 2011
Posts: 1
Location: UK
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| Posted: Sun Aug 21, 2011 2:59 pm Post subject:
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| JLS wrote: | Little examples from my modification PIC Fraktal synth
Base is basic chaos (Logistic equation) and PT2399 delay chip controlled from PIC
Pure sound - only normalize and fade ! |
Any details on how you do this? |
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JLS
Joined: Nov 05, 2005
Posts: 490
Location: Czech
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State Machine
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Joined: Apr 17, 2006
Posts: 2809
Location: New York
Audio files: 24
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| Posted: Sun Sep 02, 2012 7:26 am Post subject:
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Here are a couple pictures of a dual Fractal Synthesizer on a vector board. The is will used as part of a DIY setup at this years electro-music 2012 electronic music festival. It will be a collaboration entitled "The Soldering Musician and the Personal Digital Assistants". The board contains the original speaker amplifier for stand alone operation when connected to speakers and also has an LM358 based , capacitive coupled, LINE amplifier/buffer to connect to an audio mixer.
The original dual version was on solderless breadboard and did not have the LINE amplifier. It appears earlier in this thread.
I particularly enjoy using the WSG and FM sequencer patches on this synthesizer. It's a fun synthesizer to play around with !
Next the PT delay chips shall be added.
Its been a LONG while since I revisited this but still have to purchase the CCS compiler to add patches.
Bill
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volare
Joined: Jul 31, 2006
Posts: 6
Location: Portland, OR USA
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State Machine
Janitor
Joined: Apr 17, 2006
Posts: 2809
Location: New York
Audio files: 24
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| Posted: Sat Sep 22, 2012 7:55 am Post subject:
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| Quote: | | Here's a Picture of a fraktal synth I just breadboarded.The sounds are real cool. |
Indeed ! Just very small amounts of input on the controls reveals some very unique changes in the sounds produced. You can experiment for hours !
I find that it's fun to play two of them and move each around in the stereo field. |
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