Sabine’s 1898 equation launched scientific room-acoustics design.

Evidence

Because of the importance of reverberation time in the perception of music in a room, and because of the differing requirements for speech and different types of music, much effort is focused on it. In fact, a major step in room acoustics occurred when Wallace Clement Sabine enumerated a means of calculating and so predicting the reverberation time of a room in 1898. Much design work on auditoria in the first half of this century focused almost exclusively on this one parameter, with some successes and some spectacular failures. Nowadays, other acoustical and psychoacoustical factors are also taken into consideration. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1822

Categorization

• XREF: Sabine’s reverberation formula is a foundational history-of-science data point connecting to the field’s lineage.

Related

• Sabine’s 1898 formula made reverberation time the dominant auditorium design parameter (similarity 0.92)
• Sabine’s formula launched the science of architectural acoustics (similarity 0.91)
• The science of acoustics began with concert hall reverberation theory (similarity 0.88)
• Sabine’s reverberation formula founded architectural acoustics but fails for high absorption (similarity 0.87)
• Sabine experimentally verified exponential sound decay in a reverberant room (similarity 0.85)
• Listeners prefer reverberation times of 1-1.1 s for piano in living-room-sized spaces (similarity 0.84)
• Room reverberation time varies with frequency, altering perceived timbre (similarity 0.84)
• A single slope measurement of dB decay directly yields the reverberation time (similarity 0.84)
• Wallace Sabine’s acoustics work began at Harvard’s request in the 1890s (similarity 0.83)
• Recommendable reverberation times range from 2 seconds down to 0.35 seconds by room type (similarity 0.83)
• No reverberation-time formula has universal applicability across rooms (similarity 0.82)
• The Sabine formula assumes diffuse sound that real rectangular rooms rarely produce (similarity 0.82)
• Reverberation time is defined as a 60-decibel energy decay (similarity 0.82)
• Reverberation times range from fractions of a second to ten seconds (similarity 0.82)
• Even the father of acoustics could not predict a hall’s sound before completion. (similarity 0.81)