The threshold of hearing discomfort is generally accepted as ......

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BlackTom AI · Accepted Answer

The question asks for the generally accepted value for the threshold of hearing discomfort.
Option provided: 'c. 120 dB'.
First, consider what 'threshold of hearing discomfort' means: it refers to the sound level at which sound becomes painfully loud and start to cause discomfort or pain with typical exposure, rather than merely being audible.
At very high sound levels, the human ear begins to experience pain and immediate discomfort. In acoustics and occupational noise literature, this onset of pain is commonly cited around 120 decibels (dB), though the precise level can vary with frequency, exposure duration, and individual sensitivity.
For completeness, it is important to differentiate this from the threshold of hearing (the quietest sound detectable) and from thresholds for temporary or permanent hearing damage, which occur at different levels and with varying exposure times. The pain/discomfort threshold is not the same as the threshold of hearing, and it is not about gradual hearing loss thresholds.
Given the option set, this value aligns with the widely cited figure for immediate discomfort due to sound pressure. While other values would require different interpretations (e.g., lower levels for prolonged exposure discomfort), the 120 dB estimate is commonly accepted for acute discomfort.
In summary, the statement identifies 120 dB as the point at which sound is generally perceived as uncomfortably loud or painful, recognizing that real-world thresholds can vary slightly with context and individual differences.

MUCP105_02FA24 FINAL EXAM MUCP105

The threshold of hearing discomfort is generally accepted as ......

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