Signal processing apparatus for separating voice and non-voice a

Details Signal processing apparatus for separating voice and non-voice a Signal processing apparatus for separating voice and non-voice a

1991-05-15

1992-09-15

Shaw, Dale M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381110, 381 56, G10L 300

Patent

active

051484846

ABSTRACT:
A signal processing unit separates voice signals and non-voice audio signals contained in a mixed audio signal. The mixed audio signal is channel divided, and the voice signal portions of the channel divided mixed audio signal are detected and extracted at one output. Non-voice audio signals contained in the voice signal portions are predicted based on the non-voice audio signal portions of the mixed audio signal. The thus predicted non-voice audio signals are combined with extracted non-voice audio signals to obtain continuous non-voice audio signals which are output at a second output. Alternately, instead of extracting the voice signals from the mixed audio signal, the predicted non-voice signals are removed from the mixed audio signal to obtain the voice signals which are output on the first output.

REFERENCES:
patent: 4441203 (1984-04-01), Fleming
patent: 4541110 (1985-09-01), Hopf et al.
patent: 4542525 (1985-09-01), Hopf
patent: 4829578 (1989-05-01), Roberts

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