Monday, March 17, 2008

golden ears


Most humans can hear sounds within the frequency range of 20 Hz and 20,000 Hz. Anything below 20 Hz is silent to us, but we can feel it, like the bass of a song through a sub-woofer (ha ha), or the vibrations of the floor at a concert.

Check this one out: dogs (as well as many other animals) have a wider range of hearing than humans, about 40 Hz to 60,000 Hz (you probably knew that, but hey)!

I love watching our dog Habibi (adorable) react to sounds. It never ceases to amaze me at how he can tell that Kale is coming home at least 30 seconds before I hear any footsteps or keys jingling in the door.

To me, the vacuum just sounds loud, but it's actually giving off a very high frequency sound which scares the living daylights out of the poor guy.

One time I learned that part of dogs' secret to sharp hearing is the fact that they have so much mobility in their ears. If you watch 'em, you'll notice that they perk up their ears when they pick up on a fascinating sound, and move them to "tune it in", the same way that we can cup our ears to increase sensitivity to sound.

I just know that those extra 40,000 Hz give Habibi a whole different perspective of the world. He would definitely be one awesome sound engineer.

1 comment:

Unknown said...

great name for a dog!