3328 · mirror hall

Sculpt a room, hear its reflections

A physically-grounded acoustic sandbox. The image-source method renders your piano through the exact early reflections this geometry produces. A plain rectangle rings with a flutter echo — splay its parallel walls or soften them to make the phrase bloom.

wall absorption18%

Hard walls (low %) give long, bright reflections; soft walls damp the tail quickly.

flutter riskflutter echo

Periodic reflections near 29 Hz — the metallic ring of parallel walls.

reflections
24
early spread
55 ms
audio
idle

Drag the corner squares to reshape the room, and the S / L dots to move source and listener. Turn Loop on to reshape while it plays.

The dream lab — Karel Barnoski