German electronics manufacturer Siemens created the Siemens Synthesizer in 1959, which could convert sound into speech. To date, the operating principle of the vocoder has not changed much. The image shows the schematics of the voice transformer VODER by Homer Dudley.
It was not until 1939 that Bell Labs introduced a speech synthesis device called VODER (Voice Operated Demonstrator) to the public in New York and San Francisco. The engineer attempted to simulate as closely as possible the workings of the vocal tract – the way sound is emitted due to the passage of air through the lungs and other organs of the human body – using electronic components and effects. It is what generates the “robot-like” singing voice.ĭudley, an engineer at Bell Laboratories, began developing vocoders in 1928 to use electronics to replicate human speech and vocal apparatus. Now, for a music producer, it is a plugin that imparts the characteristics of the human voice on another sound like a synth pad. The vocoder is a device first developed by Homer Dudley in 1928 to generate continuous human speech electronically. But, before this generation, it had been used by artists like Daft Punk, Beastie Boys, Zedd, and even Michael Jackson. Many think of performers like Jacob Collier, Cory Henry, and Justin Lee Schultz when talking about vocoders. This article will show what a vocoder is, how it works, and how to use it.
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