A CREATION OG PERCEPTION EXPERIENCE
Sound into Pattern
Hear the relationship.
Watch the pattern change.
What do you notice as a sound relationship
becomes less stable, then settles again?
Listen, look, and follow what you notice.
Explore the relationship.
Compare the two states, or play the nine-second transition to hear and see the change together.
The slider changes the visual. Play the transition to hear stable phase become fluctuating phase, then return.
Stable phase · sound off. Begin at low volume.
Square-membrane model · 83 ms average
What changed for you?
What did you see? What did you hear?
Did one help you notice something in the other?
Try describing the difference in your own words. There is no preferred response. You can notice movement, steadiness, texture, or something else entirely.
Coherence, cymatics, and this model
Here, coherence refers to a stable relative phase between two modeled vibration modes. Increasing phase fluctuation varies that relationship over time. The colored regions show lower average motion, including cancellation; a coherent pattern can contain quiet regions.
The sound combines the same two time signals used to calculate the picture. The 432 Hz carrier uses our A432 reference. Phase variation introduces additional frequency components.
This is a simplified square-membrane model, not a simulation of sand movement or a prediction for a particular metal plate or water surface. Physical cymatic patterns also depend on geometry, material, support and how the surface is driven.
Explore the physics: Penn State’s rectangular membrane modes · UCSB’s Chladni plate demonstration.
What will you make of it?
Discover a relationship. Then shape something of your own.