Doodling lissajous

Creations & Ideas
1

Using the new feature for generating lissajous figures in SP5 here is a doodle pattern. You can have fun by altering timings, frequencies. phase offsets, even sliding them.


#lissajous doodles on Sonic-Pi 5 by Robin Nwman
use_synth :sine
use_random_seed Time.now.to_i#resets seed hence choices each time run.
live_loop :start_new do
  #start two sines panned +/- 1
  p1=play :a3, pan: -1, sustain: 1.8 #you can play with sustain times.
  p2=play :e4, pan: 1, sustain: 3.6 #they are regenerated each time start_new repeats
  live_loop :c1 do
    control p1,note: [:a2,:a3,:a4,:a5].choose #change frequency of p1 every second
    sleep 1
  end
  live_loop :c2 do
    control p2,note: [:a5,:d4,:e4,:a3,:d5,:e5].choose,phase_offset: [0.25,0.5,0.75].choose,phase_offset_slide: [0,0.25,0.5].choose
    sleep 0.25 #this loop runs at 4 times the speed of :c1 loop
  end
  sleep 2 #time before p1,p2 regenerate
end

Perhaps I should say select lissajous from the scope options and adjust the size of the scope window to give a reoughoy square shape. Also, you can turn the exteranlal sound volume down (not the built in volume control in prefs) if you find the sound output too loud.

1 Like
2

Great sound. Reminds me of the Monome era :slight_smile:

3

Very interesting sound, but in my case, with V5 I get a

Timing Exception: thread got too far behind time error

in the sleep of live_loop :c2 (although it still plays correctly). This doesn’t happen with V4 (although the resulting sound isn’t exactly the same).

4

Not sure why that should be. What hardware are you using to run SP5.0?

I have it running on a mac-mini, but it also runs perfectly on my raspberry pi5

you are using the final release version of version 5.0.0?

5

Yes, I’m using the final release (the AppImage) on Ubuntu 22.04 with an i7-1260P processor. I’m not experiencing any CPU performance issues. I also don’t know what the problem could be, but despite the error, the sound is still being generated correctly.