Impulse response of a spherical microphone array (eigenmike)

2006 ◽  
Vol 119 (5) ◽  
pp. 3378-3378 ◽  
Author(s):  
Colin Barnhill ◽  
James West ◽  
Ilene Busch‐Vishniac
Keyword(s):  
Impulse Response ◽  
Microphone Array

3D Impulse Response Measurements of Spaces Using an Inexpensive Microphone Array

2013 ◽  
Vol 20 (2) ◽  
pp. 141-155 ◽  
Author(s):  
Daniel Protheroe ◽  
Bernard Guillemin
Keyword(s):  
Impulse Response ◽  
Microphone Array

Influence of Different Impulse Response Measurement Signals on MUSIC-Based Sound Source Localization

2017 ◽  
Vol 29 (1) ◽  
pp. 72-82 ◽  
Author(s):  
Takuya Suzuki ◽  
◽  
Hiroaki Otsuka ◽  
Wataru Akahori ◽  
Yoshiaki Bando ◽  
...  
Keyword(s):  
Impulse Response ◽  
Source Localization ◽  
Sound Source ◽  
Transfer Functions ◽  
Signal To Noise Ratio ◽  
Microphone Array ◽  
Sound Source Localization ◽  
Sound Sources ◽  
Response Measurement ◽  
Significant Difference

[abstFig src='/00290001/07.jpg' width='300' text='Six impulse response measurement signals' ] Two major functions, sound source localization and sound source separation, provided by robot audition open source software HARK exploit the acoustic transfer functions of a microphone array to improve the performance. The acoustic transfer functions are calculated from the measured acoustic impulse response. In the measurement, special signals such as Time Stretched Pulse (TSP) are used to improve the signal-to-noise ratio of the measurement signals. Recent studies have identified the importance of selecting a measurement signal according to the applications. In this paper, we investigate how six measurement signals – up-TSP, down-TSP, M-Series, Log-SS, NW-SS, and MN-SS – influence the performance of the MUSIC-based sound source localization provided by HARK. Experiments with simulated sounds, up to three simultaneous sound sources, demonstrate no significant difference among the six measurement signals in the MUSIC-based sound source localization.

scholarly journals Linear microphone array for acoustic impulse response measurements using reciprocal method: Effects of microphone holder

2021 ◽  
Vol 42 (6) ◽  
pp. 344-349
Author(s):  
Mao Terashima ◽  
Daisuke Morikawa ◽  
Parham Mokhtari ◽  
Tatsuya Hirahara
Keyword(s):  
Impulse Response ◽  
Microphone Array ◽  
Method Effects ◽  
Reciprocal Method

Influence of the Test Voltage Function over Lightning Impulse Response Parameters Measured by Long Cable

2018 ◽  
Vol 138 (3) ◽  
pp. 242-248 ◽  
Author(s):  
Shuji Sato ◽  
Seisuke Nishimura ◽  
Hiroyuki Shimizu ◽  
Hisatoshi Ikeda
Keyword(s):  
Impulse Response ◽  
Lightning Impulse ◽  
Test Voltage
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