Wideband expander for stereo and sap signals

Details Wideband expander for stereo and sap signals Wideband expander for stereo and sap signals

H - Electricity

04

N

350/97

H04N 5/60 (2006.01) H03G 7/00 (2006.01) H03G 7/06 (2006.01)

Patent

CA 2034452

ABSTRACT A decoding arrangement for decoding audio signals previously encoded in accordance with the dbx format, includes a wideband expander instead of a full dbx expander. The wideband expander employs a relatively simple, and therefore inexpensive, peak detector in place of the true RMS detector of a full dbx expander, and does not include apparatus for spectral expansion of the audio signal. Although the decoding is noncomplementary with respect to the encoding, the stereo audio reproduction as perceived by a listener, is surprisingly good.

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