Temporary hearing muffling may become permanent with repetition

Evidence

An apparent muffling or softening of sounds after exposure to noise signals a temporary hearing loss, called a threshold shift, one that can worsen and become permanent with successive exposures. — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 1696

Categorization

• DEFINE: Defines the threshold-shift concept distinguishing recoverable from permanent acoustic damage.
• corroborated: 2 independent passages support this claim — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 1696
• XREF: connects to: Excessive noise causes widespread hearing damage and tinnitus in the US population — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 357; Much age-related hearing decline stems from environmental noise, not aging itself — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 621; Repeated loud exposures convert temporary hearing loss into permanent damage — Toole, Floyd E, Sound reproduction- the acoustics and…, 1876 (+1 more)

Broader Connections

• Excessive noise causes widespread hearing damage and tinnitus in the US population #corroborates (0.85) — George Michelsen Foy, Zero Decibels, 357
• Much age-related hearing decline stems from environmental noise, not aging itself #expands (0.70) — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 621