i want to control the audio signal which reach all time my eardrum

[immadi.jagadish]

i want to design a chip which can be tagged to our hear to select the signals what ever i what to hear n to select the range of signals from which place they r coming....how?from where i should start
please give information to immadi.jagadish@gmail.com

 

[horace1]

have a look at
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also the Microchip DSP library
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I built a midi board some years ago using a dsPIC33 which our media people have used.

if you are looking for a development board the Microchip microstick is good and cheap (about £16 in UK)
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it has an onboard programmer and a header which can plug into a breadboard for your own circuits.

 

[klystron]

If you want select the direction of the sound you can use an array of microphones and beam forming See beam forming - Google Search