发明名称 |
Audio coding and decoding |
摘要 |
A decoding device ( 30 a) comprises a narrow-band decoding unit ( 31 ) operable to reproduce a PCM signal (P 1 ) from a narrow-band bit stream included in a wide-band bit stream (S 0 ), a wide-band decoding unit ( 32 ) operable to reproduce a PCM signal (P 2 ) having a frequency band which is wider than that of the PCM signal (P 1 ) reproduced by the narrow-band decoding unit ( 31 ) from the narrow-band bit stream and a band expanding bit stream included in the wide band bit stream (S 0 ) and a selecting unit ( 34 ) operable to select either the PCM signal (P 1 ) reproduced by the narrow-band decoding unit ( 31 ) or the PCM signal (P 2 ) reproduced by the wide-band decoding unit ( 32 ), and to output the selected sound digital signal. |
申请公布号 |
AU2002343212(A1) |
申请公布日期 |
2003.05.26 |
申请号 |
AU20020343212 |
申请日期 |
2002.10.29 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YOSHIAKI SAWADA;TOMOKAZU ISHIKAWA;SHUJI MIYASAKA |
分类号 |
G10L19/02;G10L19/18;G10L19/24;(IPC1-7):G10L19/14;G10L21/02;G10L19/14 |
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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