Voice Synthesizer
The earliest known "talking machine" was developed in 1778 by Wolfgang von Kempelen. Eyewitnesses reported that it could speak several words in a timid, childlike voice. While the ta...
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Bluetooth headsets, the tiny earpieces that make people look like they're talking into thin air when they're on their cell phones, have been a success story despite often being maddeningly difficul...
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