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AVS2 speech and audio coding scheme for high quality at low bitrates

机译:AVS2语音和音频编码方案,可实现低比特率的高质量

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With the increasing number of portable and wireless devices and the expanding of wireless network bandwidth, there is a growing demand for high quality and low bitrate speech and audio codec. This paper presents a speech and audio codec, which is based upon AVS P10. In our presented codec, ACELP and TCX technology is adopted, and also presents a hybrid bandwidth extension to coding high band signal. The paper gives an overview of the codec architecture and presents results of formal listening tests, objective test, and complicity of algorithm comparing this new codec with ITU-T G.718 and AVS P10. This result shows a comparable performance and forms the basis of the reference model in the ongoing AVS standardization activity for AVS2 speech and audio coding.
机译:随着便携式和无线设备数量的增加以及无线网络带宽的扩展,对高质量和低比特率的语音和音频编解码器的需求不断增长。本文介绍了基于AVS P10的语音和音频编解码器。在我们提出的编解码器中,采用了ACELP和TCX技术,并且还提出了混合带宽扩展以对高频带信号进行编码。本文概述了编解码器体系结构,并提出了正式的听觉测试,客观测试以及算法的复杂性的结果,并将这种新编解码器与ITU-T G.718和AVS P10进行了比较。此结果显示了可比的性能,并在正在进行的AVS2语音和音频编码的AVS标准化活动中形成了参考模型的基础。

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