The Architecture of Echo
The same short phrase of three bells in seven different spaces: an anechoic room, a narrow corridor, a stone room, a dome, a cave, an open horizon and finally a hall that moves from near to far. The source never changes; only the acoustics of the space change. The spaces are representations, not measurements of real buildings. There is no claim of any effect; this is a journey in listening and acoustics.
Why this order? The first stage is small spaces: it begins with no reverberation at all, then comes a narrow corridor with a 0.7-second tail and a bright stone room with a two-second tail. The second stage is large volumes: under a four-and-a-half-second dome the notes blend, and in a cave the first reflection is delayed by 120 ms and the tail lasts six seconds. The third stage is openness and distance: a single echo returning half a second later in the open air, then bells that move away in the same hall as the reverberant share grows. The phrase is always the same: three bells at 220, 330 and 440 Hz, every half minute. Seven parts, 72 minutes in all.
0/7 stops completed
Stop 01/07 · I Small spaces
The Bare Sound
No reverberation: only the bells' own decay.
Parts
- Evidence level S: Soundscape, no claimDetails
- Evidence level S: Soundscape, no claimDetails
- Evidence level S: Soundscape, no claimDetails
- Evidence level S: Soundscape, no claimDetails
- Evidence level S: Soundscape, no claimDetails
- Evidence level S: Soundscape, no claimDetails
- Evidence level S: Soundscape, no claimDetails
Parts are not locked; progress stays on this device. The parts are listening practice with no claim of any effect. You can see how each session was made in its details.
Sources
The explanations in the parts rest on these sources; they make no claim of any effect. The citations were checked against Crossref, PubMed or the publisher's record.
The precedence effect: early reflections fuse with the sound, late ones are heard separately (The Narrow Corridor, The Open Horizon).
Distance perception in rooms: the ratio of direct sound to reverberation (Invisible Architecture).
A standard textbook of auditory perception: hearing in reverberant environments.
Moore BCJ. An Introduction to the Psychology of Hearing. Brill; 2013. ISBN 9789004252424