Audio Transmitter

In Progress Posted Jul 20, 2014 Paid on delivery
In Progress Paid on delivery

Need to design an electronic circuit capable of transmitting inaudible sound in frequency range of 17 kHz to 19 kHz within a geographical area of radius of 70-80 meters. The sound signal would be carrying some predefined digital bit sequence (you can use any modulation technique as long as its mathematical demodulation is possible). Sound signal should be detectable by any normal smartphone available in market. Circuit should consume as much less power as possible. Heat dissipation, if any should be taken care.

Let us know how would you do it & how much time would you need for this.

I would need a circuit diagram of the audio transmitter & would need a working prototype as well.

Circuit Design

Project ID: #6211744

About the project

2 proposals Remote project Active Jul 22, 2014

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ElectrSoftDesign

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fogexpert

Hello! I will show you my skills in practice. What can be my advantages are honesty, accuracy and perfection in any works. Let's meet and discuss in detail. I believe we can make our trust and belief to be good for More

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