发明名称 |
AUDIOKODIERER UND -DEKODIERER |
摘要 |
The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises a linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; a quantization unit for quantizing a transform domain signal; a long term prediction unit for determining an estimation of the frame of the filtered input signal based on a reconstruction of a previous segment of the filtered input signal; and a transform domain signal combination unit for combining, in the transform domain, the long term prediction estimation and the transformed input signal to generate the transform domain signal. |
申请公布号 |
AT518224(T) |
申请公布日期 |
2011.08.15 |
申请号 |
AT20080009530T |
申请日期 |
2008.05.24 |
申请人 |
DOLBY INTERNATIONAL AB |
发明人 |
HEDELIN, PER HENDRIK;CARLSSON, PONTUS JAN;SAMUELSSON, JONAS LIEF;SCHUG, MICHAEL |
分类号 |
G10L19/00;G10L19/008;G10L19/035;G10L19/08 |
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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