A modest decibel jump like ambient-to-bus represents a near-8000-fold sound increase

Evidence

I have to remember that this is not a mathematical but a logarithmic boost, an increase in volume 7,943 times ambient levels. — George Michelsen Foy, Zero Decibels, 97

Categorization

• corroborated: 2 independent passages support this claim — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 97
• XREF: connects to: Human hearing perceives huge physical sound intensity changes as barely different — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 97; Perceived loudness and physical sound intensity follow different, non-intuitive mathematical scales — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 53; A single ringing phone doubles the acoustic energy of a quiet library — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 360

Library Connections

• Perceived loudness and physical sound intensity follow different, non-intuitive mathematical scales #exemplifies (0.88) — George Michelsen Foy, Zero Decibels, 53
• Human hearing perceives huge physical sound intensity changes as barely different #corroborates (0.85) — George Michelsen Foy, Zero Decibels, 97