Joined: Nov 10, 2011 Posts: 878 Location: Lancashire, England
Audio files: 14
Posted: Wed Jan 18, 2012 4:27 am Post subject:
garcho wrote:
Bravo!
Have you tried recording it and slowing it down? I heard a radio show a long time ago about recording bird songs; if you slow them down, new intricate melodies appear that would normally go by too fast for us humans to perceive. That was something that popped into my head right away, FWIW.
I second this notion, slow it down for great justice
This is allways the case with my latest invention: the lumelodyertron MK4, if you think you have one melody, slow down the clock and a new one is formed out of the high frequency bits. _________________ As a mad scientist I am ruled by the dictum of science: "I could be wrong about this but lets find out"
Yes, I have slowed it down. I often try both extremes. I didn't want to hog this thread, so I didn't post it, but since folks are asking, here is basically the same patch as "birdlike", but with slower clocks. Of course since the machine was turned off then on again, the pseudo-random generators produced different patterns...
Oh yeah, often if you slow down real audio recordings of birds, they sound like whales. Or you can make whales sound like birds by speeding up.
Awesome! Sounds like Bach on 8 bit acid.
I made a whale voice Lunetta which sounded very much like a bird when the knobs are right.
http://electro-music.com/forum/phpbb-files/mouth_machine_143.mp3 _________________ "The life of a repo man is always intense."
Thanks! It's an honor that anyone here would listen to my hacking.
I really like how your Big Birdy sounds slowed down. The warble-ly-ness is great! It's almost like an old tape or warped record. I think the more affected and random the timbral nuances are, the more human/organic/instrument-like Lunettas become. You know how it is; nature, chaos, chance, and what-have-you can be more interesting or musical, for lack of better terms, than sterile and simple. Part of LO-FI's appeal. Maybe that's why there's sentimentality for 4-track cassette recorders. I miss mine, but still never bother to pull it out and use it. I should turn it into a Lunetta control board or something. With 4-track tape delay! Thinking with my fingers, sorry.
You mentioned 'pseudo random'. Any hints or tips on how to achieve that or where I should look for information, search terms, etc.? How do ICs (like CD40xx) mimic randomness? _________________ "The life of a repo man is always intense."
I think the more affected and random the timbral nuances are, the more human/organic/instrument-like Lunettas become.
Probably... pure square waves certainly don't sound voice-like or organic... gotta mess them up somehow.
garcho wrote:
You mentioned 'pseudo random'. Any hints or tips on how to achieve that or where I should look for information, search terms, etc.? How do ICs (like CD40xx) mimic randomness?
Well, I have 2 circuits I found in books to generate 4 bits randomly. Both use 2 CMOS chips. One needs just one clock signal, the other needs 2 or 3. It is beyond my understanding how they actually work, but I use them all the time.
The 1-clock one uses a 4006 shift register and a 4077 XNOR. I posted the schematic for it in this thread, because it's a little problematic: http://www.electro-music.com/forum/topic-46472.html , therein are some other related circuits.
The other circuit is based on a 40174 D-Flip-Flop & 4070 XOR, but I'm not sure where I got it from. I think it's standard CMOS cookbook stuff. I guess I could post it if there's a demand.
OK ok, it's me yet again another time. I've been meaning to put things up on my soundcloud account for months, and finally did it, going through recordings made almost a year ago, catching up to the present time. Now I can start posting stuff as I explore new patches and circuits.
Presently I have 20 snippets (i.e. approximately 1-minute long) of various CMOS/Lunetta patches up there.
- Each has an image for the "artwork" from spectrograms (with different parameters) of the sounds themselves as viewed by Sonic Visualiser (a great free program).
- Each has a name chosen amongst hundreds generated by a Python program that uses Markov chains.
Many thanks to the members of this forum for inspiration, ideas, circuits and help. The classic "I couldn't have done it without you" line applies. Electronics can be very frustrating and one can often ask "why the heck am I doing this?", so forums like these help one to continue on... even though that last question hasn't been answered!
After a bit of a break , I've finally got around to recording something new.
This uses a 4094 8-stage register into an 8-bit r2r
into to 4046 type VCOs, each into thier own mixer channel.
An XOR chain feeding noise to an LDR, gated by a 4089 "multiplier".
ABCD on the 4089 are controlled by toggle switches, for different rhythms.
Also, a 40106 at low audio frequency, is being gated by a 4516 counter
via another LDR.
To record I "played" the mixer. Into Ableton with a distorted/wah-wah guitar plug-in. (Guitar Hero) I changed the LFO on the plug-in from sine to random step.
Joined: May 18, 2010 Posts: 308 Location: Oak Park, IL
Audio files: 5
Posted: Mon May 21, 2012 7:02 am Post subject:
A "live" track recorded directly to my Ipad via Soundcloud App. Lo fi and grungy - no sh!T . And yes, the li' one has to be with me everywhere; he's already plugging banana cables into the lunetta.
I'm using an auto wah pedal to filter the output. I find that filter pedals work great in altering the sounds from these machines without the troubleshooting involved in diy vcf's. If ya got time to build em' great, I sure don't.
Joined: Nov 10, 2011 Posts: 878 Location: Lancashire, England
Audio files: 14
Posted: Mon May 21, 2012 8:14 am Post subject:
For a moment I thought it was going to be a remix of this music (it's called "THEM!" as well) but yours was good too Draal Carry on the good work. _________________ As a mad scientist I am ruled by the dictum of science: "I could be wrong about this but lets find out"
Joined: May 18, 2010 Posts: 308 Location: Oak Park, IL
Audio files: 5
Posted: Mon May 21, 2012 9:17 am Post subject:
I forgot to mention the patch. I'm running 2 oscillators into the 4094 shift register. I take a few of the 4094 outs and add them to the inputs of the 4051. The AB and C of the 4051 are separate oscillators for A and B and one of the outs of the 4094 controls C.
I also added an oscillator or two into the 4051's inputs so I can have a little bit of control over some pitch. Then out to the mixer. Effect pedals such as auto wah's or reverb/delay add heaps of tonal options. Try them on a patch that lacks a little life and you might find a hidden bit to record/shape a tune with. _________________ Zontar Prevails!
Joined: May 18, 2010 Posts: 308 Location: Oak Park, IL
Audio files: 5
Posted: Thu Jul 26, 2012 3:56 pm Post subject:
A track from my mini lunetta. A 4052 has its A and B controllers "controlled" by 2 oscillators. A third oscillator controls the 4040 which provides 4 "octaves" for the 4052's data inputs.
And yes it goes through the pitch tracker before output to my amp.
Joined: Aug 08, 2009 Posts: 1082 Location: Out scouting . . .
Posted: Mon Dec 03, 2012 7:34 pm Post subject:
RF wrote:
I took my own advice and recorded a patch to share.
The timings on this are influenced by the VCO frequencies - which in turn influence the VCO's.
Modules used are an R/2R, 4017/4051 Melody Gen, 8 bit shift registers (2), 4094, 40106 VCO's (2) and a 555 VCO.
Passive portamento provided by a capacitor in a breadboarded experiment (inactive) I had patched into one of the VCO's.
bruce
Just heard this on the streaming radio--wild and crazy. Nice!!!
Fun with the 4046 pitch tracker. I'm using Drall's schematic: http://electro-music.com/forum/topic-51275.html
Except I've inserted a divider on pins 3 and 4.
For this recording I used the 4522 melody gen: http://electro-music.com/forum/topic-50516.html
I substituted 4526's for the 4522's and controlled them with a 4015.
Also I applied CV to the unused lug of the 1meg pot from Drall's schem.
The CV was generated from 8 shift registers and 7 specific resistors.
This is edited from three different takes. The only effect is some reverb from about halfway through.
I forgot to mention, I'm using the melody generator as the divider.
Joined: May 18, 2010 Posts: 308 Location: Oak Park, IL
Audio files: 5
Posted: Mon Dec 10, 2012 4:39 pm Post subject:
jcintheus wrote:
Fun with the 4046 pitch tracker. I'm using Drall's schematic: http://electro-music.com/forum/topic-51275.html
Except I've inserted a divider on pins 3 and 4.
For this recording I used the 4522 melody gen: http://electro-music.com/forum/topic-50516.html
I substituted 4526's for the 4522's and controlled them with a 4015.
Also I applied CV to the unused lug of the 1meg pot from Drall's schem.
The CV was generated from 8 shift registers and 7 specific resistors.
This is edited from three different takes. The only effect is some reverb from about halfway through.
I forgot to mention, I'm using the melody generator as the divider.
Great track ! The pitch tracker makes things a bit more organic (an oxymoron/some kind a moron perhaps). I love my Animoog on my Ipad and I think the 4046 as pitch tracker allows for some of that fluidity, granted in a lo fi way.
I need to incorporate some of your mods the next time I'm "under the hood" of my machine. _________________ Zontar Prevails!
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