发明名称 |
Encoding device and encoding method |
摘要 |
When creating SBR data in a the low-resolution mode, an encoding device divides a high-frequency component of input audio data being encoded by SBR method into a high-frequency band and a low-frequency band, and calculates an average high-frequency power value that indicates the average value of the power in the high-frequency band of the audio data, as well as an average low-frequency power value that indicates the average value of the power in the low-frequency band of the audio data. The encoding device then compares the average high-frequency power value and the average low-frequency power value, selecting the smaller of the two. The encoding device then corrects the power of the high-frequency component of the signal being encoded by the SBR method so that it equals the selected average power value.
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申请公布号 |
EP1968046(A1) |
申请公布日期 |
2008.09.10 |
申请号 |
EP20080002888 |
申请日期 |
2008.02.15 |
申请人 |
FUJITSU LIMITED |
发明人 |
SUZUKI, MASANAO;SHIRAKAWA, MIYUKI;TSUCHINAGA, YOSHITERU;MAKIUCHI, TAKASHI |
分类号 |
G10L19/08;G10L21/02 |
主分类号 |
G10L19/08 |
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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