发明名称 |
Automotive audio reproducing apparatus |
摘要 |
An automotive audio reproducing apparatus according to the present invention comprises: a sound image position correction circuit 52 for converting a left-channel input digital audio signal XL(Z) and a right-channel input digital audio signal XR(Z) into a digital audio signal YL(Z) and a digital audio signal YR(Z), respectively, for output expressed by:<paragraph lvl="0"><in-line-formula>YL(Z).GLL(Z)+YR(Z).GLR(Z)=XL(Z).FLL(Z)+XR(Z).FLR(Z)</in-line-formula><paragraph lvl="0"><in-line-formula>YR(Z).GLL(Z)+YL(Z).GLR(Z)=XR(Z).FLL(Z)+XL(Z).FLR(Z)</in-line-formula>where FLL(Z) to GLR(Z) are given head related transfer functions; a depth correction circuit 53 for adding reflected sound signals to the signals YL(Z) and YR(Z), respectively; a D/A converter circuit 6 for subjecting output signals of the correction circuit 53 to D/A conversion; and a level control circuit 522 for controlling level of a difference signal in the sound image position correction circuit 52; whereby analog audio signals outputted from the D/A converter circuit 6 are supplied to a left-channel speaker and a right-channel speaker, respectively.
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申请公布号 |
US2002034308(A1) |
申请公布日期 |
2002.03.21 |
申请号 |
US20010950722 |
申请日期 |
2001.09.12 |
申请人 |
USUI JUNICHI;ITABASHI TETSUNORI |
发明人 |
USUI JUNICHI;ITABASHI TETSUNORI |
分类号 |
B60R11/02;H04R5/02;H04S1/00;(IPC1-7):H04R5/00 |
主分类号 |
B60R11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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