Opens in a new tab

AES E-Library

← Back to search

Convention Paper Open Access

Accurate Timbre and Frontal Localization without Head Tracking through Individual Eardrum Equalization of Headphones

Authors: Griesinger, David

AES Convention 141 · Paper 9620 · September 2016

Abstract

The ear and brain perceive the vertical position of sounds by matching the timbre detected at the eardrum of a listener to timbre patterns built up by that individual over a long period of time. But the eardrum timbre depends dramatically on ear canal resonances between 1000 Hz and 6000 Hz that boost the pressure at the eardrum as much as 20 dB. These resonances are highly individual and are either eliminated or altered by headphones. In-head localization is the result. We have developed an app that uses an equal-loudness procedure to measure and restore the natural timbre. Accurate timbre and frontal localization are then perceived without head-tracking, and binaural recordings can be stunningly realistic.

Details

Published in
AES Convention 141
AES Convention
141
Paper number
9620
Publication date
September 6, 2016
Session subject
Spatial Audio
Affiliation
David Griesinger Acoustics, Cambridge, MA, USA (See document for exact affiliation information.)
Type
Convention Paper