Members urbanscallywag Posted April 20, 2007 Members Share Posted April 20, 2007 I've been doing a lot of DSP work lately, so some time with analog synths was warrented. A clip of this morning's analog additive synthesis: http://homepage.mac.com/nicksdsu/music/add.mp3 Its monophonic only. The synth interface is terrible so it would take a couple hours to add more harmonics, which is why it has a dark sound right now. It also is really difficult to get "musical" sounds out of, explaining the nonsense drones demo. There's a little digital delay mixed in. Link to comment Share on other sites More sharing options...
Members mildbill Posted April 20, 2007 Members Share Posted April 20, 2007 Sorry man - it needs a little work. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 :o Link to comment Share on other sites More sharing options...
Members ElectricPuppy Posted April 20, 2007 Members Share Posted April 20, 2007 Additive synthesis is something that's alway fascinated me. As you mentioned, it needs more upper harmonics. Do you have the capability to give each harmonic its own envelope? That would open the door to more interesting sounds. Say, what are you using, anyway? Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 An analog synthesizer. Yes, I can envelope each harmonic individually. This is a really basic idea that popped in my head and I did a proof of concept. I will fire up the ol' K5m and get some ideas to test this better. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 OK I've been convinced to go back to the drawing board and add more harmonics. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 http://homepage.mac.com/nicksdsu/music/add_2.mp3 No effects, and more "conventional". Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 http://homepage.mac.com/nicksdsu/music/add_2.png Waveform of highest note from above sample. Link to comment Share on other sites More sharing options...
Members TVC15 Posted April 20, 2007 Members Share Posted April 20, 2007 http://homepage.mac.com/nicksdsu/music/add_2.mp3 No effects, and more "conventional". That thing moves air. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 That thing moves air.Yes, yes it does. :D :D Note: it starts off quiet and gets much louder. Do not adjust your stereo! Link to comment Share on other sites More sharing options...
Members mildbill Posted April 20, 2007 Members Share Posted April 20, 2007 http://homepage.mac.com/nicksdsu/music/add_2.mp3 No effects, and more "conventional". Much better. Some nice electric interaction there about 1/3 of the way thru. Can you describe what you're doing? A held fundamental note, with a few harmonics brought in above it maybe. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 A spectrum is also interesting: http://homepage.mac.com/nicksdsu/music/add_2_spec.png Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 Much better. Some nice electric interaction there about 1/3 of the way thru. Can you describe what you're doing? A held fundamental note, with a few harmonics brought in above it maybe. Thanks. I still think the original is cool. Sorry let's see. There are 8 harmonics [including the fundamental]. They are all present throughout the recording scaled by 1/2 each octave. So approximately: 1 @ 100% 2 @ 50% 3 @ 25% 4 @ 12% 5 @ 6% 6 @ 3% 7 @ 2% 8 @ 1% The notes are played from a low C, going an octave up each time. There are no changes made in the patch while playing. I will describe in more detail what equipment I'm using after I investigate some more. Link to comment Share on other sites More sharing options...
Members mildbill Posted April 20, 2007 Members Share Posted April 20, 2007 Are you using sine waves? I've always kinda wondered what those full-blown analog additive synths sound like. Pretty rare and expensive though. Analog sines have a bit of grunge to them tho, so you not working with something as clean as the K5M.I took a peek at a single cycle of a fundamental sine from my K5M when I had it and even that had a bit of grunge at the bottom of the cycle. If you want to make it sound a bit more 'additive', try using a lower volume fundamental. Boosting some of the stuff further up will give it a more unique, identifiable sound. I listened to the first clip again (had to adjust my ears), and it sounds a little like an organ run thru a fuzz box with maybe a little distortion added in. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 Yes, yes, additive sine waves. Something like Fourier synthesis I guess [ala K5/K5000 which I never got into]. Interesting idea to do some distortion analysis on various sine waves. I am also curious if my sines are in phase and if that matters at all. I think mine are all out of phase and there's no way to correct it. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 I listened to the first clip again (had to adjust my ears), and it sounds a little like an organ run thru a fuzz box with maybe a little distortion added in.I don't know about distortion, but to me it sounds so digital, bell-like almost Yamaha DXish. I did screw up something in the patch, but I think it turned out cool. However, if you wouldn't have covered your ears in pain I wouldn't have gone back and figured out why it was "weird". Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 This also raises the question, why do additive synths have like 200 harmonics? That's way too many. Link to comment Share on other sites More sharing options...
Members ElectricPuppy Posted April 20, 2007 Members Share Posted April 20, 2007 Cause they're not all even multiples? Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 Well then they are not harmonics. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 I need an analog phaser right now! Link to comment Share on other sites More sharing options...
Members ElectricPuppy Posted April 20, 2007 Members Share Posted April 20, 2007 well sure, but not all sound is made of pure harmonics. PS. No phaser for you. Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 But its not a Fourier synthesizer unless its harmonic, or so the mathematics go...maybe. I'm lost at this point. Anyone own an inharmonic additive synthesizer? Link to comment Share on other sites More sharing options...
Members ElectricPuppy Posted April 20, 2007 Members Share Posted April 20, 2007 Fourier, Schmourier. Maybe 200 harmonics is for when you really want a super lush 20Hz base note. I dunno. I've had too much Diet Pepsi to think straight. Link to comment Share on other sites More sharing options...
Members BillyWa Posted April 20, 2007 Members Share Posted April 20, 2007 The original one was much fun! Link to comment Share on other sites More sharing options...
Members urbanscallywag Posted April 20, 2007 Author Members Share Posted April 20, 2007 The original one was much fun!Ah hah! Someone who isn't close minded [OJ reference]. Thank-es. I think the first one sequenced could be quite cool. Link to comment Share on other sites More sharing options...
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