发明名称 |
PROPAGATION DELAY CORRECTION APPARATUS AND PROPAGATION DELAY CORRECTION METHOD |
摘要 |
A propagation delay time correction apparatus comprising a means for generating a frequency spectrum signal by performing short-term Fourier transform on an audio signal; a means for setting a propagation delay time for each of a plurality of predetermined frequency bands; a means for calculating a phase control amount for each of the plurality of predetermined frequency bands on a basis of the propagation delay time set for each of the plurality of predetermined frequency bands; a means for generating a phase control signal by smoothing the calculated phase control amount for each of the plurality of predetermined frequency bands; a means for controlling a phase of the frequency spectrum signal for each of the plurality of predetermined frequency bands on a basis of the generated phase control signal; and a means for generating an audio signal on which a propagation delay correction is performed by performing inverse short-term Fourier transform on the frequency spectrum signal of which the phase is controlled for each of the plurality of predetermined frequency bands. |
申请公布号 |
EP3016412(A1) |
申请公布日期 |
2016.05.04 |
申请号 |
EP20140818103 |
申请日期 |
2014.06.19 |
申请人 |
CLARION CO., LTD. |
发明人 |
HASHIMOTO, TAKESHI;WATANABE, TETSUO;FUJITA, YASUHIRO;FUKUE, KAZUTOMO |
分类号 |
H04S1/00;G10L19/00;H04S5/02 |
主分类号 |
H04S1/00 |
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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