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 |
US8219409(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20080058988 |
申请日期 |
2008.03.31 |
申请人 |
VETTERLI MARTIN;PEREIRA CORREIA PINTO FRANCISCO;ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE |
发明人 |
VETTERLI MARTIN;PEREIRA CORREIA PINTO FRANCISCO |
分类号 |
G10L21/04;G10L11/00;G10L11/04;G10L19/00;G10L19/14 |
主分类号 |
G10L21/04 |
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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