A question about hearing - help please

  • Thread starter dave_t
  • Start date
  • #1
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Hi all

Does anyone know the time delay through the head between the voicebox producing sound and the ear registering it?

Thanks in advance

Dave
 

Answers and Replies

  • #2
Well, what does "registering" mean? The time that the person should become aware of the sound, or simply the time the sound reaches the ear end of the auric nerve(s)? Also, I think you should specify the center of the voicebox. It would make a big difference if you are interested in the edge of the voicebox nearest the nearest ear instead.

In any case, I dunno, sorry.
 
  • #3
Chi Meson
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A very quick estimate of the speed of sound through bone is about 2500 m/s (speed of sound through solids is equal to the square root of the ("young's modulus" over the density) or sqrt (Y/rho). Young's modulus of bone is about 10^10 N/m^2.

It's about 13 cm from the voicebox to the middle ear (give or take a cm), so sound will get there in about 50 microseconds. The composition (densities and elasticities) of bone varies through the body, so this is just a rough estimate.
 
  • #5
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Thanks so much for the reply Chi

Regards

Dave
 

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