This is a demo of Subsonic Labs’ Low Frequency Entity, a “real-time multi-touch interface to a visualized low frequency sound”:
The various touch configurations control different parameters of the synthesized bass, including filter modulation rate, bit crush, sample and hold, feedback, oscillator phase and fm synthesis.
Subsonic Labs is the creative work of Christian Bannister, a musician & developer based out of Portland, Oregon.
I am not analyzing the audio here at all. I am only using the settings on the bass synth to drive the visuals. I broke out certain “effective” parameters from the NI Massive bass patch and worked with those to define the visual characteristics of the entity.
I am looking at an lfo modulation of the filter here, a bitcrush effect, a sample and hold effect, feedback, an oscillator phase parameter, and an fm synthesis control. This gives me a huge palette to work with. I should say I am also sending midi note information to Processing and having that vibrate the form as well.
Once the visual starts making sense then I can begin interacting with it and finding musical ways to engage it or play it like an instrument.
Check out the Bannister’s site for more details.