发明名称 |
Audio wave field encoding |
摘要 |
An encoder/decoder for multi-channel audio data, and in particular for audio reproduction through wave field synthesis. The encoder comprises a two-dimensional filter-bank to the multi-channel signal, in which the channel index is treated as an independent variable as well as time, and and the resulting spectral coefficient are quantized according to a two-dimensional psychoacoustic model, including masking effect in the spatial frequency as well as in the temporal frequency. The coded spectral data are organized in a bitstream together with side information containing scale factors and Huffman codebook identifiers. |
申请公布号 |
EP2107833(A1) |
申请公布日期 |
2009.10.07 |
申请号 |
EP20090156817 |
申请日期 |
2009.03.31 |
申请人 |
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) |
发明人 |
PINTO, FRANCISCO;VETTERLI, MARTIN |
分类号 |
G10L19/02;G10L19/008;H04R5/027;H04S3/00 |
主分类号 |
G10L19/02 |
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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