Results 241 to 250 of about 1,472,223 (308)

A pseudo adaptive microphone array

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2003
A pseudo adaptive microphone array scheme is presented in this paper for high quality speech acquisition. This two-stage scheme consists of an initial enhanced cross-power spectrum phase (ECPSP) stage, which is used to estimate the directions of the target as well as the spatially distinguishable undesired signals, followed by an optimum spatial filter,
Jianfeng Chen, Louis Shue, Hanwu Sun
openaire   +1 more source

Sound Source Tracking by Drones with Microphone Arrays

IEEE/SICE International Symposium on System Integration, 2020
This paper presents a method for sound source localization and tracking using drones with microphone arrays. Microphone array processing is an established technique for estimating the direction of a sound source.
Taiki Yamada, Katsutoshi Itoyama, Kenji Nishida, K. Nakadai   +3 more
semanticscholar   +1 more source

Differential Beamforming with Null Constraints for Spherical Microphone Arrays

IEEE International Conference on Acoustics, Speech, and Signal Processing
Differential microphone arrays (DMAs) can measure both the acoustic pressure field and the differential acoustic pressure fields, which gives them great advantages in a wide range of applications for acoustic and speech signal acquisition.
Xudong Zhao, Xueqin Luo, Gongping Huang, Jingdong Chen, J. Benesty   +4 more
semanticscholar   +1 more source

Noise cancelling for microphone arrays

1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002
An application of the noise cancelling method for suppression of noise of a microphone array system is discussed. First an overview of the noise cancelling approach is given. This is followed by a description of the employment of the method in a realized microphone array system.
Jens Meyer, Carsten Sydow
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The nearfield spherical microphone array

2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008
A nearfield spherical microphone array is presented. The nearfield criterion of the spherical array is defined in terms of array order, frequency and location. It is shown that given a source in the nearfield, significant attenuation of farfield interference is achieved.
Etan Fisher, Boaz Rafaely
openaire   +1 more source

Dynamically reconfigurable microphone arrays

2011 IEEE International Conference on Robotics and Automation, 2011
Robotic sound localization has traditionally been restricted to either on-robot microphone arrays or embedded microphones in aware environments, each of which have limitations due to their static configurations. This work overcomes the static configuration problems by using visual localization to track multiple wireless microphones in the environment ...
Eric Martinson, Benjamin R. Fransen
openaire   +1 more source

The Spherical-Shell Microphone Array

IEEE Transactions on Audio, Speech, and Language Processing, 2008
Spherical microphone arrays have been recently studied for a wide range of applications. In particular, microphones arranged around an open or virtual sphere are useful in scanning microphone arrays for sound field analysis. However, open-sphere spherical arrays have been shown to have poor robustness at frequencies related to the zeros of the ...
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Deconvolution using CLEAN-SC for acoustic source identification with spherical microphone arrays

Journal of Sound and Vibration, 2019
The point spread function (PSF) based deconvolution algorithms may fall short due to the inconformity between the actual beam pattern of acoustic sources and the theoretical PSF.
Zhigang Chu, Shuyi Zhao, Yang Yang, Yongxin Yang   +3 more
semanticscholar   +1 more source

Multichannel feedforward active noise control system combined with noise source separation by microphone arrays

Journal of Sound and Vibration, 2019
In this paper, we propose a multichannel active noise control (ANC) system combined with noise source separation by microphone arrays. A multichannel feedforward ANC system uses multiple reference microphones located close to noise sources and can reduce
Kenta Iwai, Satoshi Kinoshita, Y. Kajikawa   +2 more
semanticscholar   +1 more source

A microphone array for car environments

Speech Communication, 1992
Abstract This paper describes a microphone array for speech recording in car environments. The array is designed for hands-free radiotelephone, and is also used as a front-end for an automatic speech recognition system (this study has been realised within the european ESPRIT project ARS “adverse environment recognition of speech”). We first summarise
openaire   +1 more source