发明名称 |
AUDIO SIGNAL PROCESSING METHOD AND APPARATUS |
摘要 |
A method of processing a series of input audio signals representing a series of virtual audio sound sources placed at predetermined positions around a listener to produce a reduced set of audio output signals for playback over speaker devices placed around a listener, the method comprising the steps of: (a) for each of the input audio signals and for each of the audio output signals: (i) convolving the input audio signals with an initial head portion of a corresponding impulse response mapping substantially the initial sound and early reflections for an impulse response of a corresponding virtual audio source to a corresponding speaker device so as to form a series of initial responses; (b) for each of the input audio signals and for each of the audio output signals: (i) forming a combined mix from the audio input signals; and (ii) forming a combined convolution tail from the tails of the corresponding impulse responses; (iii) convolving the combined mix with the combined convolution tail to form a combined tail response; (c)for each of the audio output signals: (i) combining a corresponding series of initial responses and a corresponding combined tail response to form the audio output signal.
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申请公布号 |
CA2325482(A1) |
申请公布日期 |
1999.09.30 |
申请号 |
CA19992325482 |
申请日期 |
1999.01.06 |
申请人 |
LAKE TECHNOLOGY LIMITED |
发明人 |
REILLY, ANDREW PETER;CARTWRIGHT, RICHARD JAMES;DICKENS, GLENN NORMAN;MCGRATH, DAVID STANLEY;MCKEAG, ADAM RICHARD |
分类号 |
H04S1/00;G06F17/10;H03H17/02;H03H17/06;H04R5/033;H04S3/00;H04S5/00;H04S5/02;H04S7/00;(IPC1-7):H03H17/06 |
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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