发明名称 |
DEVICE AND METHOD FOR CALCULATING SPEAKER SIGNALS FOR A PLURALITY OF SPEAKERS USING A DELAY IN THE FREQUENCY DOMAIN |
摘要 |
A device for calculating loudspeaker signals using a plurality of audio sources, an audio source including an audio signal, includes a forward transform stage for transforming each audio signal to a spectral domain to obtain a plurality of temporally consecutive short-term spectra, a memory for storing a plurality of temporally consecutive short-term spectra for each audio signal, a memory access controller for accessing a specific short-term spectrum for a combination consisting of a loudspeaker and an audio signal based on a delay value, a filter stage for filtering the specific short-term spectrum by using a filter, so that a filtered short-term spectrum is obtained for each audio signal and loudspeaker combination, a summing stage for summing up the filtered short-term spectra for a loudspeaker to obtain summed-up short-term spectra, and a backtransform stage for backtransforming summed-up short-term spectra for the loudspeakers to a time domain to obtain the loudspeaker signals. |
申请公布号 |
EP2656633(B1) |
申请公布日期 |
2015.07.08 |
申请号 |
EP20120816679 |
申请日期 |
2012.12.28 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
FRANCK, ANDREAS;RATH, MICHAEL;SLADECZEK, CHRISTOPH |
分类号 |
H04R3/12;G10L19/26;H04R29/00 |
主分类号 |
H04R3/12 |
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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