![]() However, the recreated voice sounded very unnatural, and the cost to build, power and maintain the tube-circuit electronics in the early 20th century would have more than offset the savings in transmission costs.īell Labs was still tinkering with the idea in the 1960s, when Bob Moog got wind of what they were doing, and realized the potential for musical uses. Particularly on long distance calls, this would have saved money at a time when bandwidth was very expensive. The idea was that, on a phone conversation, the speaking party's voice would be encoded at that end of the line and sent to the listening party's phone, where the voice would be reconstructed. ![]() The first vocoders were developed in the 1930s at Bell Labs, which was seeking a way to encode voice signals in a way that would require less bandwidth on a phone line than actually transmitting voice. ![]() ![]() A device that uses a series of bandpass filters to impose the spectral characteristics of a person's voice (or some other input signal) on a second signal. ![]()
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