View Single Post
  #3   Report Post  
Old September 19th 09, 10:45 PM posted to alt.binaries.schematics.electronic
AnimalMagic AnimalMagic is offline
external usenet poster
 
First recorded activity by DIYBanter: Oct 2007
Posts: 11
Default Threshold of hearing - hearing threshold.pdf

On Sat, 19 Sep 2009 11:30:47 -0500, John Fields
wrote:

Enjoy!


4kHz (or thereabouts) must be a real painful frequency.