DEVICE FOR SIGNAL ENCODING, DEVICE FOR SIGNAL DECODING, INFORMATION CARRIER AND METHOD FOR ENCODING AND DECODING Russian patent published in 1999 - IPC

FIELD: radio engineering. SUBSTANCE: device has circuit for converting input acoustic signal into frequency components, circuit for separation of output signal of converting circuit into components of tonal characteristic and components of noise characteristic, circuit for encoding tonal characteristic components, and circuit for encoding of noise characteristic components. In addition circuit for encoding tonal characteristic components encodes respective components of tonal characteristic signals so that they different length of codes. EFFECT: increased efficiency of encoding without drop of quality with respect to tonal characteristic acoustic signal. 27 cl, 21 dwg, 1 tbl