The INTENSITY LEVEL of a loud sound which gives pain to the ear, usually between 115 and 140 dB (see graph). For some listeners with HYPERACUSIS these levels may be much lower. Determination of the ...

Exposure to a brief sound level of 140 decibels will cause pain and can cause permanent damage to hearing. Example sound levels for different sounds are: whispering \(-20 dB\), background noise at ...

This supports the idea that such sounds are designed to attract help or signal distress effectively. If this is the case, it could mean that pain interjections are shared at a species level ...