Signal compression system

Details Signal compression system Signal compression system

1984-07-24

1987-10-20

Kemeny, E. S. Matt

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 72, 381106, 333 14, G10L 500

Patent

active

047019530

ABSTRACT:
A signal compression system includes a plurality of channels. A plurality of these channels include a bandpass filter (for filtering out all but a portion of an input signal), an intensity detector (for deriving a spectrally weighted estimate of the intensity of a broader spectral portion of the input signal than the bandpass filtered spectral portion), and a divider (for compressing the bandpass filtered spectral portion using a variable gain having a preselected functional relationship to the spectrally weighted intensity estimate). The signal compression system preserves cross-channel information.

REFERENCES:
patent: 4363007 (1982-12-01), Haramoto et al.
patent: 4454609 (1984-06-01), Kates
patent: 4538234 (1985-08-01), Honda et al.
patent: 4562591 (1985-12-01), Stikvoort

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