Vitruvius’s bronze theater vessels were Helmholtz resonators
Evidence
Could resonators placed at various locations within the audience, far from the source of the sound, enhance the sound? It seems certain that Vitruvius was talking about the Helmholtz modes for each of his bronze vessels. While other resonances can exist in semiclosed vessels, normally the Helmholtz mode is most noticeable. — Eric J. Heller, Why You Hear What You Hear- An…, 1254
Categorization
Category: Definitional Content
Related
- Vitruvius described Helmholtz resonant modes, not mere amplification (similarity 0.90)
- Greek theater resonators added reverberation-like effects without walls. (similarity 0.86)
- Helmholtz resonance is the trapped-air cavity resonance exploited in perforated-panel absorbers (similarity 0.83)
- Churches embedded damped Helmholtz resonators in their walls for centuries to absorb sound (similarity 0.81)
- A brass bell reflects sounds selectively by frequency (similarity 0.80)
- Reflected sound waves pull a lip-reed player’s notes into resonance grooves, resisting off-resonance tones. (similarity 0.80)
- Vitruvius’s resonator scheme has gone empirically untested for millennia (similarity 0.79)
- A resonant cavity can isolate a single frequency from complex sound. (similarity 0.79)
Broader Connections
- Vitruvius’s resonator scheme has gone empirically untested for millennia
#expands(0.75) — Eric J. Heller, Why You Hear What You Hear- An…, 1262 - Blowing across a bottle mouth produces a Helmholtz resonance
#exemplifies(0.75) — David Howard, Jamie Angus, coustics and Psychoacoustics, 2107 - Changing internal gas density shifts the violin’s Helmholtz resonance frequency.
#expands(0.72) — Eric J. Heller, Why You Hear What You Hear- An…, 1243 - Churches embedded damped Helmholtz resonators in their walls for centuries to absorb sound
#expands(0.70) — Eric J. Heller, Why You Hear What You Hear- An…, 1269 - An open car window creates a living Helmholtz resonator with strong low-frequency pressure fluctuations
#exemplifies(0.70) — Eric J. Heller, Why You Hear What You Hear- An…, 1270