发明名称 |
Method and apparatus to quantize/dequantize frequency amplitude data and method and apparatus to audio encode/decode using the method and apparatus to quantize/dequantize frequency amplitude data |
摘要 |
A method and apparatus to quantize/dequantize frequency amplitude data and a method and apparatus to audio encode/decode using the method and apparatus to quantize/dequantize the frequency amplitude data. The method includes calculating and quantizing power of frequency amplitudes for each of a plurality of bands constituting an audio frame, normalizing frequency amplitude data for each of the bands using the quantized power, and quantizing a first one of even-numbered or odd-numbered data among the normalized frequency amplitude data. The method may further include interpolating frequency amplitude data that corresponds to a second one of the even-numbered or odd-numbered frequency amplitude that is not quantized from among the normalized frequency amplitude data using the quantized first one of the even-numbered or odd-numbered data, and quantizing an interpolation error corresponding to a difference between the second frequency amplitude data that is not quantized and the interpolated frequency amplitude data.
|
申请公布号 |
US2007016417(A1) |
申请公布日期 |
2007.01.18 |
申请号 |
US20060471635 |
申请日期 |
2006.06.21 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SUNG HOSANG;KIM SANGWOOK;TAORI RAKESH;LEE KANGEUN;LEE SHIHWA |
分类号 |
G10L19/00 |
主分类号 |
G10L19/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|