Music speech filter

Details Music speech filter Music speech filter

1982-03-04

1984-04-03

Pellinen, A. D.

Electrical audio signal processing systems and devices

Voice controlled

381 46, G10L 104

Patent

active

044412037

ABSTRACT:
A music/speech filter is provided for automatically determining whether an audio signal is music or speech by obtaining a relative measure of the energy in a selective frequency range and, from this determination, controlling the passage or path of the audio signal. The filter can be attached to a radio receiver to selectively pass either music or speech at the option of the user.

REFERENCES:
patent: 2424216 (1947-07-01), Atkins
patent: 2761897 (1956-09-01), Jones
patent: 3668322 (1972-06-01), Allen et al.
patent: 3873926 (1975-03-01), Wright
patent: 4314100 (1982-02-01), Ruether et al.
Gannett, E. K., Radio Attachment Eliminates Commercials; Institute of Radio Engineers, N.Y., 3/22/51, presented at Radio Engineers Convention.
Radio Electronics; vol. 27, No. 9, Sept. 1956, pp. 62-64; "Speech-Music Discriminator," by Edward Predmore.
Electronics, Apr. 1957, pp. 183-185; "Music Pulse Analyzer Rejects Voice Signals," by Ronald L. Ives.

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