| 基于DCT域实时语音的信息隐藏方法 |
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| 引用本文： | 王昌达,马登峰.基于DCT域实时语音的信息隐藏方法[J].计算机工程与设计,2012,33(2):474-478,555. |
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| 作者姓名： | 王昌达 马登峰 |
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| 作者单位： | 江苏大学计算机科学与通信工程学院,江苏镇江,212013 |
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| 基金项目： | 国家自然科学基金项目，江苏省自然科学基金项目，江苏省高校自然科学研究计划基金项目，江苏大学高级人才基金项目，教育部博士点基金项目，江苏省六大人才高峰基金项目 |
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| 摘 要： | 为了满足对秘密信息的实时性的需求,提出一种基于DCT域实时语音的信息隐藏方法.该方法使用DirectSound 对实时的语音进行捕获,依据人类听觉系统的掩蔽效应,选择DCT中的高频系数,通过量化秘密的音频信息将其嵌入到捕获的原始语音中,通过Socket技术对语音进行实时的传输,并且在秘密信息的提取过程中不需要原始音频载体信息的参与,实现秘密信息的盲提取.实验结果表明,在网络较好的情况下可以有效地借助实时的语音传递秘密信息.
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| 关 键 词： | 捕获 离散余弦变换 盲提取 实时 语音 |
Information hiding based on real-time voice in DCT domain |
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| WANG Chang-da
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MA Deng-feng.Information hiding based on real-time voice in DCT domain[J].Computer Engineering and Design,2012,33(2):474-478,555. |
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| Authors: | WANG Chang-da MA Deng-feng |
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| Affiliation: | (College of Computer Science and Engineering,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | In order to meet the real-time requirements of important information,an information hiding method based on DCT domain real-time voice is given.DirectSound is using to capture real-time voice.According to masking effect of human auditory system,high frequency coefficient in DCT domain is chosen and the hide secret audio information is embedded into the captured original voice carrier by quantitative methods.Finally,real-time voice is transmitted using socket technology.Furthermore,the process of extracting secret information needn’t participation of original voice carrier information to realize the blind extraction of secret information.The experiment shows that we can deliver secret information effectively by real-time voice in a good network environment. |
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| Keywords: | capture discrete cosine transform(DCT) blind extraction real-time voice |
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