Beamforming with small diameter microphone array
| Autor: | Linus Michaeli, Pavol Dolinsky, Ján Šaliga, Imrich Andras |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Beamforming
Microelectromechanical systems Microphone array Small diameter Computer science Acoustics Emphasis (telecommunications) Topology (electrical circuits) 02 engineering and technology 021001 nanoscience & nanotechnology Conjunction (grammar) Data acquisition ComputerSystemsOrganization_MISCELLANEOUS 0210 nano-technology |
| Zdroj: | 2018 28th International Conference Radioelektronika (RADIOELEKTRONIKA). |
| DOI: | 10.1109/radioelek.2018.8376368 |
| Popis: | This article deals with beamforming in conjunction with 34mm diameter 7-element circular microphone array using MEMS microphones. The main possibilities provided by beamforming are reviewed with emphasis on speech sensing. Problems that are associated with the array's small physical size, requirements on microphones themselves and data acquisition are discussed. A general delay-and-sum and a chosen filter-and-sum beamformer are described. Performance of beamformers combined with purpose built microphone array is evaluated by means of measurements. |
| Databáze: | OpenAIRE |
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