发明名称 |
METHOD & APPARATUS FOR DECODING MULTI-CHANNEL AUDIO DATA |
摘要 |
<p>A method and apparatus for decoding a bitstream (100) of transform coded multi-channel audio data. The bitstream is subjected to a block decoding process (101) to obtain for each input audio channel within the multi-channel audio data a corresponding block of frequency coefficients (102). Each block of frequency coefficients (102) is assigned a higher precision inverse transform or a lower precision inverse transform according to predetermined characteristics of the audio data represented by the block. The blocks of frequency coefficients are subsequently subjected to the assigned transform (105, 106) and an output audio signal (108) is generated in response to each of the higher and lower precision inverse transform processes.</p> |
申请公布号 |
EP0956668(A2) |
申请公布日期 |
1999.11.17 |
申请号 |
EP19970945161 |
申请日期 |
1997.09.26 |
申请人 |
SGS-THOMSON MICROELECTRONICS ASIA PACIFIC (PTE) LTD |
发明人 |
HUI, YAU, WAI, LUCAS;GEORGE, SAPNA |
分类号 |
H04H20/88;(IPC1-7):H04H1/00;H04H5/00 |
主分类号 |
H04H20/88 |
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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