A method for estimating the orientation of a directional sound source from source directivity and multi-microphone recordings: Principles and application

Guarato F.; Jakobsen L.; Vanderelst D.; Surlykke A.; Hallam J.

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A method for estimating the orientation of a directional sound source from source directivity and multi-microphone recordings: Principles and application

机译：一种根据声源方向性和多麦克风录音估算定向声源方向的方法：原理与应用

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Taking into account directivity of real sound sources makes it possible to try solving an interesting and biologically relevant problem: estimating the orientation in three-dimensional space of a directional sound source. The source, of known directivity, produces a broadband signal (in the ultrasonic range, in this application) that is recorded by microphones whose position with respect to source is known. An analytical method to process the recorded signals and estimate source orientation is developed in this paper. Experiments testing method performance in estimating source orientation were performed both in a laboratory environment with a Polaroid transducer as source and in a flight room with a Myotis daubentonii bat. In the first case, results showed the estimation method to be accurate and pointed out its limitations. The latter case is significant as an example biological application of the method for extracting behavioral features from bats; results are compared with alternative calculations based on microphone root-mean-square (rms)-pressure values.

机译：考虑到真实声源的方向性，可以尝试解决一个有趣且与生物学相关的问题：估计定向声源在三维空间中的方向。具有已知方向性的声源会产生宽带信号（在此应用中，在超声波范围内），该信号由相对于声源的位置已知的麦克风记录。本文提出了一种处理记录信号并估计信号源方向的分析方法。在以宝丽来换能器作为光源的实验室环境中，以及在带有Myotis daubentonii蝙蝠的飞行室中，均进行了测试方法性能评估方法的实验，以评估光源的方向。在第一种情况下，结果表明估计方法是准确的，并指出了其局限性。后一种情况作为从蝙蝠中提取行为特征的方法的一个示例生物学应用具有重要意义。将结果与基于麦克风均方根（rms）压力值的替代计算进行比较。

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《The Journal of the Acoustical Society of America》 |2011年第2期|共13页
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Guarato F.; Jakobsen L.; Vanderelst D.; Surlykke A.; Hallam J.;
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1. A method for estimating the orientation of a directional sound source from source directivity and multi-microphone recordings: Principles and application [J] . Guarato F., Jakobsen L., Vanderelst D., The Journal of the Acoustical Society of America . 2011,第2期

机译：一种根据声源方向性和多麦克风录音估算定向声源方向的方法：原理与应用
2. Method for estimating the number of sound sources using SVM in sound source separation [J] . Kiyoshi Yamamoto, Futoshi Asano, Takeshi Yamada, 電子情報通信学会技術研究報告. 音声. Speech . 2002,第34期

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3. Method for estimating the number of sound sources using SVM in sound source separation [J] . Kiyoshi Yamamoto, Futoshi Asano, Takeshi Yamada, 電子情報通信学会技術研究報告. 音声. Speech . 2002,第32期

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4. Determining Sound Source Orientation from Source Directivity and Real Multi-Microphone Recordings: Experimental Comparisons using both Analytical and Measured Directivity Models [C] . Francesco Guarato, John Hallam, Dieter Vanderelst Conference on Towards Autonomous Robotic Systems . 2009

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A method for estimating the orientation of a directional sound source from source directivity and multi-microphone recordings: Principles and application

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