发明名称 |
LINEAR PREDICTIVE CODING OF AN AUDIO SIGNAL |
摘要 |
<p>An apparatus for linear predictive coding of an audio signal comprises a segmentation processor (201) which generates signal segments for the audio signal. An autocorrelation processor (401) for generates a first autocorrelation sequence for each signal segment and a modification processor (403) generates a second autocorrelation sequence for each signal segment by modifying the first autocorrelation sequence in response to at least one psychoacoustic characteristic. A prediction coefficient processor (405) determines linear predictive coding coefficients for each signal segment in response to the second autocorrelation sequence. The invention allows a low complexity linear encoding which takes into account psychoacoustic considerations thereby allowing an improved perceived coding quality for a given data rate.</p> |
申请公布号 |
WO2007138511(A1) |
申请公布日期 |
2007.12.06 |
申请号 |
WO2007IB51832 |
申请日期 |
2007.05.15 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;DEN BRINKER, ALBERTUS, C. |
发明人 |
DEN BRINKER, ALBERTUS, C. |
分类号 |
G10L19/06;G10L21/02;G10L21/0264 |
主分类号 |
G10L19/06 |
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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