Publication detail

The influence of amplitude and phase errors in microphone arrays on visualization of sound field using acoustical holography

GRATZ, P.

Original Title

The influence of amplitude and phase errors in microphone arrays on visualization of sound field using acoustical holography

Type

conference paper

Language

English

Original Abstract

This paper describes the results of an investigation of the influence of amplitude and phase errors of a microphone array on the visualization of sound fields. There are several methods for near-field visualization of sound fields. One of the most powerful is Near Field Acoustical Holography (NAH). With this method it is possible to reconstruct a 3D sound pressure field from in-plane measured data. For online visualization of sound fields, use of a microphone array is required. Amplitude and phase errors of the microphones used in the microphone array are simulated for different NAH algorithms with a realistic sound source. All simulations are realized in MATLAB.

Key words in English

microphone arrays, acoustical holography

Authors

GRATZ, P.

RIV year

2002

Released

21. 9. 2002

Publisher

CVUT Praha

Location

Praha

ISBN

80-01-02576-4

Book

Eurosensors XVI

Pages from

169

Pages to

170

Pages count

2

BibTex

@inproceedings{BUT5475,
  author="Petr {Grätz}",
  title="The influence of amplitude and phase errors in microphone arrays on visualization of sound field using acoustical holography",
  booktitle="Eurosensors XVI",
  year="2002",
  pages="2",
  publisher="CVUT Praha",
  address="Praha",
  isbn="80-01-02576-4"
}