| 一种面向无线传输的音频编解码算法的实现和优化① |
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| 引用本文： | 杨洋,郭斌林,黄凯.一种面向无线传输的音频编解码算法的实现和优化①[J].计算机系统应用,2010,19(6):70-73. |
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| 作者姓名： | 杨洋 郭斌林 黄凯 |
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| 作者单位： | 1. 杭州电子科技大学微电子CAD所,浙江,杭州,310037
2. 浙江大学,超大规模集成电路设计研究所,浙江,杭州,310012 |
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| 摘 要： | 以面向无线应用的高性能音频编解码算法设计为目标，基于蓝牙SBC算法编解码框架，采用近似重构的原型滤波器和动态比特分配技术来改善音质和性能。该算法在自主32位CK510MCU平台上实现并优化，并应用于实际无线音频方案设计中。实验结果表明，在码流和功耗损失较小的情况下，采用该算法的无线音频方案音质比原始SBC得到了显著提高。
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| 关 键 词： | 无线传输 音频编解码 SBC 自适应量化 优化 |
| 收稿时间： | 2009/10/9 0:00:00 |
| 修稿时间： | 2009/11/30 0:00:00 |
Implementation and Optimization of an Audio Compression Algorithm for Wireless Application |
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| YANG Yang,GUO Bin-Lin and HUANG Kai.Implementation and Optimization of an Audio Compression Algorithm for Wireless Application[J].Computer Systems& Applications,2010,19(6):70-73. |
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| Authors: | YANG Yang GUO Bin-Lin and HUANG Kai |
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| Affiliation: | 1. Microelectronic CAD Center, Hangzhou Dianzi University, Hangzhou 310017, China; 2. Institute of VLSI Design, Zhejiang University, Hangzhou 310027, China) |
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| Abstract: | This paper presents a new high-performance audio compression algorithm for wireless application. Based on blue-tooth SBC algorithm architecture, the proposed algorithm adopts nearly perfect reconstruct,able proto filter and dynamic bit allocation technology to improve audio quality and performance. This algorithm was implemented on 32-bit CKA5102 MCU, and successfully applied to current wireless audio solution. Experiments show that compared with blue-tooth SBC, the proposed algorithm gains much improvement on audio quality, while having less cost in bitstream and power. |
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| Keywords: | SBC |
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