| 基于音频感知编码的减谱去噪和水印嵌入算法 |
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| 引用本文： | 胡国英,张卫宁,池连刚.基于音频感知编码的减谱去噪和水印嵌入算法[J].山东大学学报(工学版),2005,35(1):51-54. |
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| 作者姓名： | 胡国英 张卫宁 池连刚 |
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| 作者单位： | 1. 烟台大学,光电信息科学技术学院,山东,烟台,264005
2. 山东大学,信息科学与工程学院,山东,济南,250100 |
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| 摘 要： | 将音频感知编码的减谱去噪和水印嵌入算法与编码算法有效结合在一起 ,通过合理利用编码过程中的变换和控制 ,使得新算法获得了优于传统算法的性能 ,并完善了软件编码器性能 .实验结果表明去噪算法提高了信噪比并改善了主观听觉效果 ;水印嵌入算法既避免了后续压缩编码过程对水印信号的损坏 ,又保证了其不可感知性
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| 关 键 词： | 音频感知编码 心理声学模型 减谱去噪 数字水印 |
| 文章编号： | 1672-3961(2005)01-0051-04 |
| 修稿时间： | 2004年5月10日 |
Spectral subtraction and watermark embedding algorithm based on audio perceptual encoding |
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| HU Guo-ying,ZHANG Wei-Ning,CHI Lian-gang.Spectral subtraction and watermark embedding algorithm based on audio perceptual encoding[J].Journal of Shandong University of Technology,2005,35(1):51-54. |
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| Authors: | HU Guo-ying ZHANG Wei-Ning CHI Lian-gang |
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| Affiliation: | HU Guo-ying~1,ZHANG Wei-ning~2,CHI Lian-gang~2 |
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| Abstract: | The spectral subtraction and watermark embedding algorithm are combined with audio perceptual encoding algorithm efficiently to achieve better performance than the traditional methods and perfect the software encoder by means of reasonable utilization of the transforms and controls in the encoding process. The experiments show that the noise reduction algorithm can improve the SNR and get better subjective impression. By using the new watermark-embedding algorithm the imperceptibility can be ensured, the loss in the following compression and encoding process can be avoided at the same time. |
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| Keywords: | audio perceptual encoding psychoacoustic model spectral subtraction digital watermark |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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