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CHRISKELLY
Joined: Apr 08, 2018 Posts: 103 Location: England
Audio files: 3
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Posted: Mon Mar 18, 2019 2:29 pm Post subject:
The grind is over.... Subject description: Finally finished my first project |
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I recently finished my first electro music project. It's taken about 10 months altogether. Mainly due to the fact it started off as a baby 8 sequencer and grew organically into something more complicated. And also I had to learn everything from scratch!
Not strictly lunetta but since you guys helped me so much I wanted to share it with you and say thanks .
Quick run down of it:
- Runs on 9V supply
- Atari Punk Console based, but with the astable oscillator driving 2 monostable oscillators (so they are 'in tune' with each other and can run through the same stepped tones)
- the first pair of 555's is the classic APC with a baby 16 sequencer which is the 'LEAD' sound. Can be full or half steps
- the 2nd pairing is sent via a 4040 to create sub octaves and becomes the 'BASS' and 'CHORDS'
- the BASS uses 4046 pll's to create the 5th and Octave notes by freq multiplying the root note
- the CHORDS use 4046's in the same way to create the 3rd (both major and minor) the 5th and the 4th or 6th notes (selectable)
- BASS has a 4017 sequencer with 3 to 8 steps. Steps can be root note or 5th/Octave or off, chosen by centre off on/off/on toggle switches
- CHORD notes can be played sustained, or in an arpeggio. I came up with 3 sequences using a 4017, a 4015 or a 4040. Can be played forwards or backwards, and you can mix and match the type for each of the 4 notes.
- 4 main clock speeds, using 4017's to sub divide.
- LEAD and BASS both have Ring Mods using 4070's
- LEAD has a 4046 pll for octave selection. I also added pots to vary the resistances on pins 11 and 12. One slows down the time to lock onto the CV change which sounds like a kind of portamento. The other creates a kind of wobble as the pll can't quite lock on.
Basically a poor man's vibrato
- BASS and CHORDS have a 'vibe' mode which was from Run off the groove's Trivibe guitar pedal circuit
- LPF/HPF using Tim Escobedo's ms20 clone
- Delay circuit (another guitar pedal circuit)
- LFO for the filter, with rates either in sync with the clock or free
- a few more features but nothing too interesting, and I'm getting bored of typing
Anyway here's a quick video of it. Sorry for the poor audio and the camera work is straight off of the film Cloverfield. Also its a bit of an amateur demonstration but you get the idea. Also there's a few more pot knobs to attach still.
https://youtu.be/-agakEa1epw
Cheers guys
Chris |
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Steveg
Joined: Apr 23, 2015 Posts: 182 Location: Perth, Australia
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Posted: Mon Mar 18, 2019 3:48 pm Post subject:
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Wow, there is so much going on! A real professional looking and sounding tour de force. |
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PHOBoS
Joined: Jan 14, 2010 Posts: 5591 Location: Moon Base
Audio files: 705
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Posted: Mon Mar 18, 2019 6:56 pm Post subject:
Re: The grind is over.... Subject description: Finally finished my first project |
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looks and sounds great! I like that you went for switches instead of making it patchable. Although it might limit the available options a bit
it's easier to play with and you don't have to dig through a wire spaghetti. Also those chord buttons seem to work very well, I really
should look into using the PLL more.
CHRISKELLY wrote: | - Atari Punk Console based, but with the astable oscillator driving 2 monostable oscillators (so they are 'in tune' with each other and can run through the same stepped tones) | oh nice idea, I still have an APC build on my todo list so I might incorporate that. _________________ "My perf, it's full of holes!"
http://phobos.000space.com/
SoundCloud BandCamp MixCloud Stickney Synthyards Captain Collider Twitch YouTube |
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stolenfat
Joined: Apr 17, 2008 Posts: 476 Location: Sunny Oakland California
Audio files: 1
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Posted: Mon Mar 18, 2019 9:15 pm Post subject:
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sooooo coooool! _________________ home made noise and electronic ill-logic |
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CHRISKELLY
Joined: Apr 08, 2018 Posts: 103 Location: England
Audio files: 3
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Posted: Tue Mar 19, 2019 2:32 am Post subject:
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Thanks for the positive feedback guys
In my head I wanted it to be like a groovebox that could just be played on the fly - hence all the switches instead of patch cables.
It definitely limits it though. I think if i re-built it I'd try and incorporate some banana jacks. I'm going to trawl through this forum to get some ideas! |
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Top Top
Joined: Feb 02, 2010 Posts: 266 Location: California
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blue hell
Site Admin
Joined: Apr 03, 2004 Posts: 24079 Location: The Netherlands, Enschede
Audio files: 278
G2 patch files: 320
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Posted: Fri Mar 22, 2019 1:06 pm Post subject:
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Hey, this is very nice _________________ Jan
also .. could someone please turn down the thermostat a bit.
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RingMad
Joined: Jan 15, 2011 Posts: 427 Location: Montreal, Canada
Audio files: 4
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Posted: Fri Mar 22, 2019 2:53 pm Post subject:
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Very impressive build and looks/sounds fun to play!
I love the eyes-as-tempo-indicators.
I think I would forget what a lot of switches do if I put it aside for a bit. But I have a crap memory so tend to put labels on my boxes.
.:james:. |
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CHRISKELLY
Joined: Apr 08, 2018 Posts: 103 Location: England
Audio files: 3
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Posted: Fri Mar 22, 2019 5:21 pm Post subject:
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Thanks fellas
James - I agree with you about the labels, I definitely need to add them at some point.
The LED indicators worked great originally but now one of them is constantly on! I designed it so that when audio passed through the "vibe"/modulation circuit, it also closed a 4066 switch via an NPN transistor and allowed the indicator CV to pass through and activate the LED's. I think in the struggle to close the lid on the box something must have shorted and the switch is always closed. There were so many wires in there it was like trying to pack a suitcase |
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donpachi
Joined: Jul 16, 2009 Posts: 81 Location: Marburg
Audio files: 2
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Posted: Fri Mar 22, 2019 11:52 pm Post subject:
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Great awesome stuff |
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brock
Joined: May 26, 2011 Posts: 112 Location: Canada
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Posted: Sun Mar 31, 2019 11:06 am Post subject:
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Nice work Chris. Sounds great, looks great. I really like the chromatic chord and bass stuff. |
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Harry
Joined: May 09, 2017 Posts: 20 Location: Texas
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Posted: Sun May 05, 2019 1:47 pm Post subject:
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Cool build. I too like the switches instead of patch cable approach. I vote for no labels! |
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droffset
Joined: Feb 02, 2009 Posts: 515 Location: London area
Audio files: 2
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J-chot
Joined: Jan 20, 2014 Posts: 44 Location: Decatur AL
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Posted: Tue Aug 18, 2020 2:40 am Post subject:
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this is pretty incredible |
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