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基于等边三角形的二阶差分传声器阵列

Second Order Differential Microphone Array Based on Regular Triangle Topology
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摘要 实现了一种等边三角形结构微型传声器阵列的语音增强方法。不同于以往的线性一阶差分传声器阵列结构和线性二阶差分传声器阵列结构,提出并且验证了一种基于延时相加的二阶三角差分传声器阵列的算法,通过真实环境的检测,证明该算法能够实现12个方向的语音增强,同时方向性信噪比比线性一阶差分传声器阵列增强3～4dB。 A speech enhancement method based on regular triangle topology is implemented. It is different from the original version of first order and second order differential microphone arrays based on linear topology. A second order differential microphone array based on regular triangle topology is proposed and fulfilled, the algorithm is able to enhance twelve directions and the SNR is enhanced 3 to 4 dB compared with first order linear microphone arrays.
作者 陈卓 梁维谦 董保帅
机构地区 清华大学微电子所 清华大学电子工程系
出处 《电声技术》 2011年第7期38-41,共4页 Audio Engineering
关键词 差分传声器阵列 语音增强 波束形成 differential microphone array speech enhancement beam-forming
分类号 TN641 [电子电信—电路与系统]
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参考文献5

  • 1LUO Falong, YANG Jun, CHASLAV P, et al. Adap-tive null-forming scheme in digital hearing aids[J]. IEEE Trans. Signal Processing, 2002,50 (7) : 1583 -1591.
  • 2GARY W E, JENS M. Second-order differential adap-tive microphone array[C]//Proc. ICASSP, 2009.[S.1.]: IEEE Press, 2009,73-76.
  • 3袁坤,梁维谦,张国先.基于等边三角形麦克风阵列的语音增强[J].清华大学学报（自然科学版）,2009(7):987-990. 被引量：5
  • 4BRANDSTEIN W. Microphone arrays-signal process-ing techniques and applications[M]. Berlin Germany: Springer, 2001.
  • 5MCCOWAN I A. Robust speech recognition using mi-crophone arrays[D]. Australia: Queensland University of Technology, 2001.

二级参考文献8

  • 1Brandstein M, Ward D. Microphone Arrays-Signal Processing Techniques and Applications[M]. Berlin, Germany:Springer, 2001.
  • 2LUO Falong, YANG Jun, Pavlovic C, et al. Adaptive null-forming scheme in digital hearing aids[J].IEEE Transactions on Signal Processing, 2002, 50(7): 1583- 1591.
  • 3Moonen M, Doclo S. Speech and audio processing [EB/OL]. E2007-10-103. http: //homes. esat. kuleuven. be/- moonen/.
  • 4Rainer Z. A microphone array with adaptive post-filtering for noise reduction in reverberant rooms [J].IEEE Transactions on Signal Processing, 1988, 5: 2578- 2581.
  • 5LI Qi, ZHENG Jinsong, Tsai A, et al. Robust endpoint detection and energy normalization for real-time speech and speaker recognition [J]. IEEE Transactions on Speech and Audio Processing, 2002, 10:146-157.
  • 6Stephen G M. A model for room acoustics. [EB/OL]. 2006. http : //www. 2pi. us.
  • 7Hansen J H L, Arslan L. Robust feature-estimation and objeetive quality assessment for noisy speech reeognition using the credit-card corpus [J]. IEEE Trans Speech Audio Processing, 1995, 3: 169- 184.
  • 8McCowan I A. Robust Speech Recognition Using Microphone Arrays[D]. Australia: Queensland University of Technology, 2001.

共引文献4

电声技术
2011年 第7期

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