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Convention Paper

Prediction of Perceived Width of Stereo Microphone Setups

Authors: Riekehof-Böhmer, Hans; Wittek, Helmut

AES Convention 130 · Paper 8364 · May 2011

Abstract

The diffuse field-correlation of the two signals generated by a stereophonic microphone setup has an effect on the perception of spatial width. A correlation meter is often used to measure the correlation coefficient. However, the correlation coefficient is not a proper value to predict the perceived width when it comes to time delay stereophony due to the frequency dependence of the correlation function. By the newly defined “Diffuse-Field-Image-Predictor” (DFI-Predictor) presented in this paper it is tried to reliably predict the perceived width. Listening tests show that the DFI-Predictor is fairly suitable for this task. The aim of the study is to compare the spatial properties of different stereophonic microphone techniques by one calculated value.

Details

Published in
AES Convention 130
AES Convention
130
Paper number
8364
Publication date
May 6, 2011
Session subject
Audio Equipment
Affiliation
HAW-Hamburg, Hamburg, Germany; SCHOEPS Mikrofone, Karlsruhe, Germany (See document for exact affiliation information.)
Type
Convention Paper