发明名称 |
AUDIO ENCODING METHOD AND APPARATUS, AND AUDIO DECODING METHOD AND APPARATUS, FOR PROCESSING DEATH SINUSOID AND GENERAL CONTINUATION SINUSOID |
摘要 |
An audio encoding method and apparatus, and an audio decoding method and apparatus, for processing a death sinusoid and a general continuation sinusoid. Using the unique characteristic of a death sinusoid, in that the death sinusoid has a tendency such that an amplitude component of the death sinusoid is less than that of a previous sinusoid, a method of adding an encoding syntax by distinguishing a general continuation sinusoid from a death sinusoid is provided. That is, when difference coding of the amplitude component of a death sinusoid is performed, the number of bits used when a negative number is coded is less than the number of bits used when a positive number is coded, in a Huffman table. By using this method, a bit rate in an entire coding decreases.
|
申请公布号 |
US2009048849(A1) |
申请公布日期 |
2009.02.19 |
申请号 |
US20080174875 |
申请日期 |
2008.07.17 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE NAM-SUK;LEE GEON-HYOUNG |
分类号 |
G10L19/00;G10L19/08;G10L19/093 |
主分类号 |
G10L19/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|