Calculate maximum safe volume for headphones

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Discussion Overview

The discussion revolves around calculating the maximum safe volume for headphones, particularly in relation to the threshold of hearing and distance from the sound source. It touches on concepts from acoustics and human hearing safety.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant recalls a past physics problem related to acoustics and seeks to understand how to calculate safe headphone volume based on distance and the threshold of hearing.
  • Another participant notes that there is no singular answer to the calculation, indicating that it varies with frequency and suggesting the use of loudness scales and decibel ratings.
  • A third participant suggests that the topic may be more appropriate for the Medical forum, indicating a potential overlap with health considerations.
  • A fourth participant provides a link to a Wikipedia article on loudness for further reading.

Areas of Agreement / Disagreement

Participants do not reach a consensus on a specific method or answer for calculating safe headphone volume, and multiple competing views regarding the factors involved remain present.

Contextual Notes

The discussion highlights the need for clear definitions of "safe" and acknowledges the complexity of the problem, including assumptions about frequency and individual hearing sensitivity.

George Albercook
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I remember doing a physics problem over 30 years ago but I can't remember enough to do it again. The only reason I remember it is that it seemed like it would be so useful when I had teenage kids. Funny how the brain works sometimes. Got teenagers now. We were working on acoustics. If I remembered correctly the problem used the threshold of hearing and distance. The idea was to calculate the distance to stand away from headphones playing music such that if the volume at that distance was just at the threshold of your hearing than the volume would be safe if you put the headphones in you ears at that volume. I'm sure there are all sorts of assumptions and problems with so simple of a model but I would like to know how to do it anyway. Anyone know the answer?
 
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Welcome to PF;
There is no one answer.
The calculation depends on frequency as well ... but there is a "loudness scale" and tables on power ratings (in decibels) and their effect on human hearing apparatus, all for the googling.
The start is to define what you mean by "safe".
 
This thread may need to get moved to the Medical forum, but we'll leave it here for now...
 

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