[android-developers] Re: Hearing Aid

Just from a technical standpoint, a smartphone held in your hand, is never going to be a satisfactory hearing aid. The original hearing aids were pretty much exactly what you're describing. A box, usually held in one's shirt pocket, that transmitted sound through a wire to a small speaker in the user's ear. Those things were terrible for many reasons.

The simplest form of hearing aid, an amp that boosts across all frequencies evenly, at least takes the sound as it would be heard at the ear. A regular, prescribed hearing instrument uses the loss curve from the patient to customize the responses of and boost each frequency band differently.

In order to make a reasonable hearing aid out of a smart phone, it would require stereo mikes at each ear, transmitting the sound levels to the Android device, which would boost each band according to the loss of the user and transmit it back to be broadcast to the user.

For this complexity, you might as well take a look at the modern, digital hearing instrument. They are a marvel of technology and would be far superior to anything that can be cobbled together out of a smart phone, regardless of which one.

You should have looked at the wiki:

http://en.wikipedia.org/wiki/History_of_hearing_aids

-John Coryat, USNaviguide LLC

p.s. I've been working in and for the hearing instrument community for over 25 years.

On Thursday, February 28, 2013 4:17:47 AM UTC-6, Shaik Shabana wrote:

Hi,

I want to work on Smart Hearing aid, wherein I can use the mobile as my hearing aid.

Pls let me know how to start this.

Thanks!!

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