Steerable differential beamformers with planar microphone arrays
Abstract Humanoid robots require to use microphone arrays to acquire speech signals from the human communication partner while suppressing noise, reverberation, and interferences. Unlike many other applications, microphone arrays in humanoid robots have to face the restrictions in size and geometry....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-11-01
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| Series: | EURASIP Journal on Audio, Speech, and Music Processing |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s13636-020-00185-1 |
| _version_ | 1818256641106116608 |
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| author | Gongping Huang Jingdong Chen Jacob Benesty Israel Cohen Xudong Zhao |
| author_facet | Gongping Huang Jingdong Chen Jacob Benesty Israel Cohen Xudong Zhao |
| author_sort | Gongping Huang |
| collection | DOAJ |
| description | Abstract Humanoid robots require to use microphone arrays to acquire speech signals from the human communication partner while suppressing noise, reverberation, and interferences. Unlike many other applications, microphone arrays in humanoid robots have to face the restrictions in size and geometry. To address these challenges, this paper presents an approach to differential beamforming with arbitrary planar array geometries. The major contributions of this work are as follows: (1) a method is presented to design differential beamformers, which works for regular geometries such as linear, circular, and concentric circular ones, as well as irregular geometries, as long as the sensors’ positions are given or can be measured; (2) fundamental requirements for the design of different orders of linear differential microphone arrays (DMAs), partially steerable DMAs, fully steerable DMAs, and robust DMAs are discussed; (3) the validity and limitations of the Jacobi-Anger expansion approximation is analyzed, where we discuss how to achieve an optimal approximation by properly choosing the reference point; and (4) we show how to design an Nth-order DMA with 2N microphones using the Jacobi-Anger expansion. |
| first_indexed | 2024-12-12T17:30:59Z |
| format | Article |
| id | doaj.art-ea40e6a78d36455894385166de76dccb |
| institution | Directory Open Access Journal |
| issn | 1687-4722 |
| language | English |
| last_indexed | 2024-12-12T17:30:59Z |
| publishDate | 2020-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Audio, Speech, and Music Processing |
| spelling | doaj.art-ea40e6a78d36455894385166de76dccb2022-12-22T00:17:24ZengSpringerOpenEURASIP Journal on Audio, Speech, and Music Processing1687-47222020-11-012020111810.1186/s13636-020-00185-1Steerable differential beamformers with planar microphone arraysGongping Huang0Jingdong Chen1Jacob Benesty2Israel Cohen3Xudong Zhao4Andrew and Erna Viterby Faculty of Electrical Engineering, Technion – Israel Institute of TechnologyCenter of Intelligent Acoustics and Immersive Communications, Northwestern Polytechnical UniversityINRS-EMT, University of QuebecAndrew and Erna Viterby Faculty of Electrical Engineering, Technion – Israel Institute of TechnologyCenter of Intelligent Acoustics and Immersive Communications, Northwestern Polytechnical UniversityAbstract Humanoid robots require to use microphone arrays to acquire speech signals from the human communication partner while suppressing noise, reverberation, and interferences. Unlike many other applications, microphone arrays in humanoid robots have to face the restrictions in size and geometry. To address these challenges, this paper presents an approach to differential beamforming with arbitrary planar array geometries. The major contributions of this work are as follows: (1) a method is presented to design differential beamformers, which works for regular geometries such as linear, circular, and concentric circular ones, as well as irregular geometries, as long as the sensors’ positions are given or can be measured; (2) fundamental requirements for the design of different orders of linear differential microphone arrays (DMAs), partially steerable DMAs, fully steerable DMAs, and robust DMAs are discussed; (3) the validity and limitations of the Jacobi-Anger expansion approximation is analyzed, where we discuss how to achieve an optimal approximation by properly choosing the reference point; and (4) we show how to design an Nth-order DMA with 2N microphones using the Jacobi-Anger expansion.http://link.springer.com/article/10.1186/s13636-020-00185-1Robot auditionMicrophone arraysBeamformingDifferential beamformingFrequency-invariant beampattern |
| spellingShingle | Gongping Huang Jingdong Chen Jacob Benesty Israel Cohen Xudong Zhao Steerable differential beamformers with planar microphone arrays EURASIP Journal on Audio, Speech, and Music Processing Robot audition Microphone arrays Beamforming Differential beamforming Frequency-invariant beampattern |
| title | Steerable differential beamformers with planar microphone arrays |
| title_full | Steerable differential beamformers with planar microphone arrays |
| title_fullStr | Steerable differential beamformers with planar microphone arrays |
| title_full_unstemmed | Steerable differential beamformers with planar microphone arrays |
| title_short | Steerable differential beamformers with planar microphone arrays |
| title_sort | steerable differential beamformers with planar microphone arrays |
| topic | Robot audition Microphone arrays Beamforming Differential beamforming Frequency-invariant beampattern |
| url | http://link.springer.com/article/10.1186/s13636-020-00185-1 |
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