Microphone array calibration for robust adaptive processing

Author

Hoffman, Michael W.

Author_Institution

Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA

fYear

1995

fDate

15-18 Oct 1995

Firstpage

11

Lastpage

14

Abstract

Significant interest exists in the use of microphone arrays for enhancing audio and speech signals. Various combinations of fixed array, adaptive array, time-domain and frequency domain processing approaches are being considered. Any well-designed sensor array processing system needs (either explicitly or implicitly) accurate modeling or measurement of the sensor responses to allow robust and effective signal enhancement. The article explores the limits that microphone array calibration places on robust speech enhancement. Modelled microphone array data is used to examine the effect of variations in array parameters on processing algorithms

Keywords

acoustic signal processing; acoustic transducer arrays; adaptive signal processing; array signal processing; audio signals; calibration; microphones; speech enhancement; time-domain analysis; adaptive array processing; array parameters; audio signal enhancement; fixed array processing; microphone array calibration; microphone array data; processing algorithms; robust adaptive processing; robust speech enhancement; sensor array processing system; sensor response measurement; sensor response modelling; speech signal enhancement; time-domain processing; Adaptive arrays; Array signal processing; Calibration; Frequency domain analysis; Microphone arrays; Robustness; Sensor arrays; Sensor systems; Speech enhancement; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Signal Processing to Audio and Acoustics, 1995., IEEE ASSP Workshop on

Conference_Location

New Paltz, NY

Print_ISBN

0-7803-3064-1

Type

conf

DOI

10.1109/ASPAA.1995.482901

Filename

482901