Abstract
IN a broadcast talk given in America by O. H. Caldwell, the editor of Electronics, a method of improving the voices of some of the political speakers was described. By using a suitable combination of electrical devices in connexion with the microphone, it is possible to improve the broadcast voice by smoothing out rough and strengthening weak notes. Sounds sent over the radio can be varied by placing in the broadcasting circuit filters, compensators, and amplifiers so that the frequency and volume are permanently varied or are left to be varied at the discretion of the control engineer. High-pitched voices are transmitted much better than deep voices over the radio. It was suggested that by putting different compensators in various branches of the broadcasting networks it would be possible for a political candidate to talk with the appropriate accent in several States simultaneously.
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Modifying Broadcasting Voices. Nature 130, 126–127 (1932). https://doi.org/10.1038/130126e0
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DOI: https://doi.org/10.1038/130126e0