发明名称 |
Audio coding based on frequency variations of sinusoidal components |
摘要 |
Coding of an audio signal is provided where an indicator of the frequency variation of sinusoidal components of the signal is used in the tracking algorithm of a sinusoidal coder where sinusoidal parameters from appropriate sinusoids from consecutive segments are linked. By applying an indicator such as a warp factor or polynomial fitting, more accurate tracks are obtained. As a result, the sinusoids can be encoded more efficiently. Furthermore, a better audio quality can be obtained by improved phase continuation. |
申请公布号 |
US7146324(B2) |
申请公布日期 |
2006.12.05 |
申请号 |
US20020278386 |
申请日期 |
2002.10.23 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
DEN BRINKER ALBERTUS CORNELIS;GERRITS ANDREAS JOHANNES;SCHUIJERS ERIK GOSUINUS PETRUS;HOTHO GERARD HERMAN;HOEPPE CHRISTOPHE ALAIN BERNARD |
分类号 |
G10L19/00;G10L19/02 |
主分类号 |
G10L19/00 |
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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