发明名称 |
Method and apparatus for adaptive sub-band allocation of spectral coefficients |
摘要 |
An apparatus and method for adaptive sub-band allocation of spectral coefficients are disclosed. The sizes of sub-bands are determined according to the distribution of spectral coefficients transformed from an input speech/audio signal to perform more elaborate quantization in units of sub-bands. Thus, quantization noise of the spectral coefficients is reduced, and sound quality in a frequency region is enhanced, thereby improving the quality of the signal. |
申请公布号 |
US8438012(B2) |
申请公布日期 |
2013.05.07 |
申请号 |
US20090556073 |
申请日期 |
2009.09.09 |
申请人 |
KIM HYUN WOO;BAE HYUN JOO;LEE BYUNG SUN;ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM HYUN WOO;BAE HYUN JOO;LEE BYUNG SUN |
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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