发明名称 |
AUDIO SIGNAL CODING DEVICE AND AUDIO SIGNAL CODING METHOD |
摘要 |
An audio signal coding device divides a frequency spectrum obtained from an input digital signal to a plurality of bands, scales and quantizes divided frequency spectra based on a scalefactor of each of the bands and a common scale which is common to the plurality of bands, and codes quantized frequency spectra. The audio signal coding device includes a band number determination unit configured to calculate a number of coding bands for coding the quantized frequency spectra, and a common scale estimation unit configured to estimate the common scale in accordance with the number of coding bands.
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申请公布号 |
US2013218576(A1) |
申请公布日期 |
2013.08.22 |
申请号 |
US201213686644 |
申请日期 |
2012.11.27 |
申请人 |
FUJITSU SEMICONDUCTOR LIMITED;FUJITSU SEMICONDUCTOR LIMITED |
发明人 |
ASAMI MARI;FUJITA TOMOYA;ONO JUN;ITO SHUSAKU;TSUCHINAGA YOSHITERU;SHIRAKAWA MIYUKI;MORIKI SOSAKU |
分类号 |
G10L19/02 |
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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