Title:
AN AUDIO FREQUENCY PROCESSING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2009/127133
Kind Code:
A1
Abstract:
An audio frequency processing method and device are provided. The audio frequency processing method includes: determining the initiate bits quantity that is allocated to each sub-band according to the frequency envelope value of sub-bands. The quantity of modified discrete cosine transform MDCT coefficients included in the sub-bands (102); matching the initiate bits quantity that is allocated to each sub-band with the numerical value included in the quantized bits allocation table, determining the bits quantity that is allocated to each sub-band according to the matching result (103).
Inventors:
ZHANG, Deming (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
张德明 (中国广东省深圳市龙岗区坂田华为总部办公楼, Guangdong 9, 518129, CN)
张德明 (中国广东省深圳市龙岗区坂田华为总部办公楼, Guangdong 9, 518129, CN)
Application Number:
CN2009/070712
Publication Date:
October 22, 2009
Filing Date:
March 10, 2009
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
华为技术有限公司 (中国广东省深圳市龙岗区坂田华为总部办公楼, Guangdong 9, 518129, CN)
ZHANG, Deming (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
华为技术有限公司 (中国广东省深圳市龙岗区坂田华为总部办公楼, Guangdong 9, 518129, CN)
ZHANG, Deming (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
G01L19/02; G11B20/10; H03M7/30
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (7th Floor, Scitech PlaceNo.22, Jian Guo Men Wai Ave., Chao Yang District, Beijing 4, 100004, CN)