Then there’s signal processing, data reduction and compression, transmission, and a bunch of data relays before it even reaches the device at the other end.Īnd that’s in the simplest case. First, there’s the acoustic path from your mouth, and the conversion to an electrical signal done by the microphone itself, followed by the conversion to digital bits (1s and 0s). Whether it’s a traditional cell phone call or a Voice over Internet Protocol (VoIP) call, your voice goes on quite a journey when you call someone. Editor’s note: this article was updated on April 20, 2021, for technical content.
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