A Low Bit Rate Audio Bandwidth Extension Method for Mobile Communication

机译：用于移动通信的低比特率音频带宽扩展方法

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High quality audio signal is supposed to be provided with low bit rate and low computational complexity in mobile communication system. This paper proposed a novel audio coding bandwidth extension method (BWE), which calculates high-frequency synthesis filter by using codebook mapping method, and transmits quantified gain corrections of high-frequency part. The preliminary test show that this method can provide comparable audio quality with lower bit consumption compared with AMR-WB+.

机译：在移动通信系统中，高质量音频信号被认为具有低比特率和低计算复杂性。本文提出了一种新的音频编码带宽扩展方法（BWE），该方法通过使用码本映射方法来计算高频合成滤波器，并传输高频部分的量化增益校正。初步测试表明，与AMR-WB +相比，此方法可提供可比的音频质量，且比特消耗更低。

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来源
《Advances in Multimedia Information Processing - PCM 2008》|2008年|778-781|共4页
会议地点 Tainan(CT);eTainan(CT)
作者
Bo Hang; Rui-Min Hu; Xing Li; Yuan Fang; An-Chao Tsai;
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作者单位

National Engineering Research Center for Multimedia Software, Wuhan University, 430072 Wuhan, P.R.C.;

National Engineering Research Center for Multimedia Software, Wuhan University, 430072 Wuhan, P.R.C.;

National Engineering Research Center for Multimedia Software, Wuhan University, 430072 Wuhan, P.R.C.;

National Engineering Research Center for Multimedia Software, Wuhan University, 430072 Wuhan, P.R.C.;

Department of Electrical Engineering, National Cheng Kung University, 1 University Road, Tainan, Taiwan, R.O.C.;

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会议组织
原文格式 PDF
正文语种 eng
中图分类计算机网络;
关键词
bandwidth extension; audio; mobile comunication;

机译：带宽扩展；音频移动通讯;

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2. 3-D Audio in Mobile Communication Devices: Methods for Mobile Head-Tracking [J] . Christoph P??rschmann Journal of Virtual Reality and Broadcasting . 2007,第2007期

机译：移动通信设备中的3D音频：移动头部跟踪的方法
3. Entropy coding of ITU G.728 speech parameters for low bit rate audiovisual communications [J] . Eryurtlu F., Atungsiri S.A. Electronics Letters . 1995,第15期

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4. A Low Bit Rate Audio Bandwidth Extension Method for Mobile Communication [C] . Bo Hang, Rui-Min Hu, Xing Li, Pacific Rim Conference on Multimedia . 2008

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A Low Bit Rate Audio Bandwidth Extension Method for Mobile Communication

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