Audio Zoom

I had this idea nagging in my mind. Auditory sense lacks one feature that visual can offer.

Today I could name it: Zooming.

Eyes can focus in a solid angle (theta and phi) to a significant resolution, without ignoring the distance (r).

Ears can also focus in a solid angle to a significant resolution.

Ears can’t distinguish between “loud” and “near”.

That is why, a camera can zoom in but a sound recorder can’t. There is just a focal length adjustment in a camera but the microphone HAS to move nearer.

***

As the readers of this blog are aware, I rate Internet and Wikipedia as great tools to humble ourselves. By the time one thinks of a problem, someone else has already thought of a solution!

Here is the news about solution to Audio Zoom.

Interestingly, Wikipedia doesn’t have any entry even about the concept of Audio Zoom.

***

The idea is good. It is just for the closed field. It can be of use of ESPN but not of Animal Planet.

However, I am very glad that someone thinks about such problems and are actually able to do something about them!

 

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2 comments on “Audio Zoom

  1. […] I posted earlier, audio zoom is pretty […]

  2. […] I have covered spying applications like “audio zoom“. Here is an excellent article about pCell, a technology that 1,000 times faster WWAN […]

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