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Convention Paper

Measuring Spectral Directivity of an Electric Guitar Amplifier

Authors: Roginska, Agnieszka; Case, Alex U.; Madden, Andrew; Anderson, Jim

AES Convention 132 · Paper 8592 · April 2012

Abstract

The recorded timbre of an electric guitar amplifier is highly dependent on the position of the microphone. Small changes in the location of the microphone can yield significant spectral differences, particularly at positions very close to the amp. This paper presents densely measured radiation pattern characteristics of an electric guitar amplifier on a 3D grid in front, beside, behind and above the amp in a hemi-anechoic space. We use this data to analyze the change in spectral differences between the numerous points on the measurement grid. Differences between acoustically measured and estimated frequency responses (predicted, using interpolation) are used to study the change in the acoustic field in order to gain insight and an understanding of the spectral directivity sensitivity factor of the electric guitar amplifier.

Details

Published in
AES Convention 132
AES Convention
132
Paper number
8592
Publication date
April 6, 2012
Session subject
Music and Modeling
Affiliation
New York University, New York, NY, USA; University of Massachusetts - Lowell, Lowell, MA, USA (See document for exact affiliation information.)
Type
Convention Paper