Algorithmic Synthesis chiptune

[Gordonjcp]

A few months back many sites were abuzz with articles about feeding the results of an iterated equation to /dev/audio to get what sounded like algorithmically-generated chiptunes.  I ported some of the code across to an Arduino and made a pocket bleepy synth thing, and also sampled some of the output from the PC.

With a drum loop I had lying around, some of the beepy noises off the PC and some drum sounds sampled from my Xiosynth, I came up with this:

http://www.gjcp.net/~gordonjcp/algo.ogg

Enjoy.

[electoyd]

sounds good gordon, nice pace.

[billywood]

The last section is especially good. Like the melody.

[boneless]

cool! I like it - it builds really nicely - really interesting process too -  I like the way your machines had a lot input creatively into the composition! thanks for sharing...



I was also curious about what you used to make the chip-tunes

I use mssiah and LSDJ but I guess you must have used something different to enable your equation to control the notes?

[gregisclassy]

pretty fat,
there is one bass sweep through most of the song
that is alittle harsh with the level needed to hear everything.

[Gordonjcp]

Wow, there's a whole bunch of replies to this that I haven't seen before!

gregisclassy - is that the big distorted kick drum?  It's a bit heavy, I'd mix it a little differently if I went back to it.

billywood - I just wrote some C code to spit the chiptunes out as a .wav file, much like the code that writes to /dev/audio but with a μ-law to linear conversion.  Then I edited the resulting samples, uploaded them to my sampler, and sequenced it with seq24.

Everything came off my ESI4000 sampler, with the chiptune and drumloop channels fed through separate outs from the "analogue" drums to the mixer and a bit of reverb applied as you can no doubt hear.  The "analogue" drums were actually created from scratch on a Novation Xiosynth.

[SineHacker]

this sounds incredibly similar to something my mate did: Chip synth final prototype test on Vimeo very cool! he is getting his head stuck into arduino wavetable stuff now I think