发明名称 |
METHOD AND DEVICE FOR SCALABLE CODING/DECODING OF STEREO AUDIO SIGNAL (ALTERNATIVES) |
摘要 |
FIELD: coding/decoding of stereo audio signal. SUBSTANCE: method for coding audio signals into multilayer data stream that has main layer and at least two expansion layers involves processing of input audio signals and their quantizing for each predetermined coding range; then quantized data corresponding to main layer out of quantized data and those corresponding to next expansion layer of main coded layer are coded and layer coding steps are sequentially executed for all expansion layers to generate binary digit streams; additional information and quantized data corresponding to layer to be coded are represented as bits of same predetermined number and then they are arithmetically coded using predetermined probability model starting from sequences of more significant bits and to those of less significant bits, bit-modular data of left-hand channel and those of right-hand channel being alternately coded in terms of definite vectors. EFFECT: enhanced coding efficiency. 26 cl, 5 dwg, 43 tbl
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申请公布号 |
RU2197776(C2) |
申请公布日期 |
2003.01.27 |
申请号 |
RU19980113925 |
申请日期 |
1998.07.09 |
申请人 |
SAMSUNG EHLEKTRONIKS KO., LTD. |
发明人 |
PARK SUNG-KHI;KIM EON-BAE |
分类号 |
G11B20/10;G10L19/00;H03H7/38;H03M7/30;H03M7/38;H03M7/40;H04B1/66;H04H20/47;(IPC1-7):H03M7/38;H04H5/00 |
主分类号 |
G11B20/10 |
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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