发明名称 AUDIO CONDITIONING APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT
摘要 The audio conditioning apparatus (190) for conditioning an audio signal (O) to be output, contains a noise characterizing unit (106, 112) arranged to evaluate a noise level (NM) of environmental noise yielding a noise level with which subsequently a volume amplification unit (140) amplifies a volume of the audio signal (O) by a volume gain (GV), depending on the noise level (NM). The audio conditioning apparatus (190) contains a further noise characterizing unit (108,114), (110, 116) is comprised, arranged to evaluate a further noise level (NL, NH) of the environmental noise in a noise band of low bass or high treble noise frequencies, and based on this further noise level a further amplification unit (150, 152) amplifies by a further gain (GB, GT) the amplitude of frequency components in a to the noise band corresponding audio band of low respectively high audio frequencies of the audio signal (O). The result is a simple apparatus which achieves that the audio in a noisy environment substantially sounds as if there was no or less noise.
申请公布号 WO2005011111(A3) 申请公布日期 2005.04.07
申请号 WO2004IB51254 申请日期 2004.07.19
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V.;DE POORTERE, GERRIT, F., M. 发明人 DE POORTERE, GERRIT, F., M.
分类号 H03G3/32;H03G5/16 主分类号 H03G3/32
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