Having to shout at three feet signals hazardous noise

Evidence

If you feel the need to shout in order to be heard three feet away, the noise levels are probably 85 dBA or more and hearing protection is recommended — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 1694

A good rule of thumb: If you feel the need to shout in order to be heard three feet away, the noise levels are probably 85 dBA or more and hearing protection is recommended — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 1694

Categorization

• DEFINE: Provides an everyday behavioral heuristic for a technical acoustic threshold.
• corroborated: 3 independent passages support this claim — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 1694
• XREF: connects to: Natural sound virtually never exceeds safe human hearing and vocal thresholds — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 676

Broader Connections

• Natural sound virtually never exceeds safe human hearing and vocal thresholds #corroborates (0.85) — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 676