Curved surfaces concentrate sound locally while draining power elsewhere in the room
Evidence
The experience of this room is that one is unaware of sound reflection from the walls: it sounds almost anechoic, yet it has reverberation! Stereo and multi-channel material played in this room has images that are stable over a wide listening area. — Toole, Floyd E, Sound reproduction- the acoustics and…, 1432 (
#expands, via linked claim)
Categorization
- corroborated: 2 independent passages support this claim
- XREF: connects to: Passive devices and even walls can amplify sound without power; Reflecting surfaces can extract wasted energy from an inefficient sound source.; Elliptical rooms focus whispered sound at the opposite focus — Eric J. Heller, Why You Hear What You Hear- An…, 2517 (+2 more)
Broader Connections
- A room can sound anechoic and reverberant simultaneously
#expands(0.85) — Toole, Floyd E, Sound reproduction- the acoustics and…, 1432 - Loudspeaker enclosures should curve near drive units to reduce diffraction
#corroborates(0.80)