The room is
an instrument.

Move the sound. Change the surfaces.
Listen to what comes back.

Drag cyan = speaker · amber = listener

Direct arrival2.9ms

Retained paths63

Early window250ms

ONE ROOM. MANY VOICES.

Make a change you can hear.

The cyan ray is direct sound. Violet rays bounce from walls. Moving either endpoint recalculates the sound you hear.

Move without dragging

Speaker X / metres1.00

Speaker depth / metres1.00

Listener X / metres2.00

Listener depth / metres1.00

Six surfaces, independently controlled

Pressure reflection: 0 absorbs; 0.95 reflects strongly. These are illustrative coefficients.

west reflection0.70

east reflection0.70

front reflection0.70

back reflection0.70

floor reflection0.70

ceiling reflection0.70

Reflection order3

Drag the cyan speaker or amber listener. Then listen to the room.

Hear the model. See its limits.

A shoebox image-source calculation produces the actual impulse response used by the audio convolver. Positions are in metres. The animation shows direct and first-order arrivals, slowed by 80×. Audio includes all retained paths at real speed.

Another way to study a room.

The original standing-wave explorer studies a different model: a single room mode. It remains available as a separate instrument.

Open the standing-wave explorer →

The room isan instrument.

Hear the model. See its limits.

Another way to study a room.

The room is
an instrument.