Speech through breath

A 16-year-old boy from India has developed a device that converts the breath into speech.The high school boy Arsh Shah Dilbagi created TALK as a portable and affordable helper of people suffering from various diseases impairing speech human. 

Using a microcontroller Arduino, which costs about 25 dollars, Dilbagi constructed device, the final price of which will be around $80. A hundred times less than the similar communicator which is currently being used by the legendary Stephen Hawking. TALK work through turning breath into electrical signals using MEMS microphone. The user can use two different intensities of exhalations to form a sort of Morse code. 

The microprocessor detects breath in dots and dashes and turns it into words. Then the words are sent to the second microprocessor that synthesize them in voice. The device has been tested in a neurology clinic in New Delhi with Parkinson's patients. "Patients are able to give two recognizable signal using breath, so that the device works perfectly," says Dilbagi that was the only finalist from Asia Global Science Fair Google - competition for young people from 13 to 18 years.