发明授权
- 专利标题: Audio conditioning apparatus, method and computer program product
- 专利标题(中): 音响设备,方法和电脑程式产品
-
申请号: US10565815申请日: 2004-07-19
-
公开(公告)号: US07840012B2公开(公告)日: 2010-11-23
- 发明人: Gerrit Frederik Magdalena De Poortere
- 申请人: Gerrit Frederik Magdalena De Poortere
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: NL Eindhoven
- 优先权: EP03102310 20030728
- 国际申请: PCT/IB2004/051254 WO 20040719
- 国际公布: WO2005/011111 WO 20050203
- 主分类号: H03G3/20
- IPC分类号: H03G3/20 ; H03G3/00
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.
公开/授权文献
信息查询