The term Silent Sound, an oxymoron, is proving to be highly beneficial in the field of helping the speech impaired. Those who have lost their voice can still speak into phones and be heard at the other end. How is this possible? Two words—electromyography and image processing. In simple terms, lip movement is detected in the form of electrical pulses and these pulses are turned into sound signals that can be heard. And what's more fascinating is that signals uttered in any language can be translated into sounds, with great accuracy! Know more through this PPT about this fascinating technology that makes talking possible without emitting sound. Download to read.

Mohamed Safal

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