Integrated adaptive beamforming and wiener filtering for a robust microphone array

2005 ◽  
Author(s):  
A. Abad ◽  
J. Hernando
Keyword(s):  
Microphone Array ◽  
Adaptive Beamforming ◽  
Wiener Filtering

scholarly journals Rotating equipment fault noise location based on adaptive beamforming algorithm

2021 ◽  
Vol 2113 (1) ◽  
pp. 012042
Author(s):  
Yongshao Xu ◽  
Bingzheng Liu ◽  
Haotian Shang ◽  
Mingduo Wang
Keyword(s):  
Microphone Array ◽  
State Parameter ◽  
Noise Signal ◽  
Source Location ◽  
Adaptive Beamforming ◽  
Rotating Machinery ◽  
Acoustic Sensor ◽  
Unsteady State ◽  
Beamforming Algorithm ◽  
Fault Source

Abstract Rotating machinery often produces continuous impact during operation due to the change of load and speed, which shows the characteristics of unsteady state and time-varying. Its working state can not be comprehensively judged by a single vibration state parameter. Therefore, this paper proposes to use acoustic sensors to collect the fault noise signal of rotating machinery, and use the whole column of sensors to detect the fault noise signal. Based on the microphone array, this paper studies the adaptive beamforming algorithm (MVDR) to locate the fault source of rotating machinery in space. The effect of fault source location is verified by simulation and equipment measurement experiments. The acoustic sensor does not in contact with the equipment, which will not damage the generator set, but also provide more effective information for fault source location and fault diagnosis and analysis.

Acoustic Field Distribution in Speech with the use of the Microphone Array

2017 ◽  
Vol 4 (3) ◽  
pp. 9-16 ◽  
Author(s):  
Daniel Król ◽  
Anita Lorenc
Keyword(s):  
Field Distribution ◽  
Acoustic Field ◽  
Microphone Array ◽  
Three Dimensional ◽  
Adaptive Beamforming ◽  
Paper Analysis ◽  
Acoustic Fields ◽  
Non Invasive ◽  
Audio Data

This article presents a 16-channel microphone-array recorder/processor that allows for a simultaneous and non-invasive detection of oral, oronasal and nasal segments in speech. Such devices and methods have not been used in the research on the articulation of sounds in the world’s languages. In this paper analysis of Polish nasal vowel was presented. Adaptive beamforming method used for rendering three-dimensional acoustic fields of the recorded audio data has been shown.

Adaptive beamforming with a Microphone Array

2015 ◽  
Author(s):  
Shah Mahdi Hasan ◽  
Mohammad Bin Monjil ◽  
Farhad Mohsin ◽  
Md. Abul Hayat ◽  
A.B.M. Harun-ur Rashid
Keyword(s):  
Microphone Array ◽  
Adaptive Beamforming
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