Headphone Stereo Enhancement Using Equalized Binaural Responses to Preserve Headphone Sound Quality

Javier Gomez Bolanos, Ville Pulkki, Aki Mäkivirta

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

A criterion is described and evaluated for equalizing the output of binaural stereo rendering networks in order to preserve the sound quality of the headphone. The aim is to equalize the binaural filter so that the sum of the direct and crosstalk paths from loudspeakers to each ear has flat magnitude response. This equalization criterion is evaluated using a listening test where several binaural filter designs were used. The results show that preserving the differences between the direct and crosstalk paths of a binaural filter is necessary for maintaining the spatial quality of binaural rendering and that post equalization of the binaural filter can preserve the original sound quality of the headphone. Furthermore, post equalization of measured binaural responses was found to better fulfill the expectations of the test participants for virtual presentation of stereo reproduction from loudspeakers. The audio samples used in the tests are available in http://research.spa.aalto.fi/publications/papers/AESheadphones2016/
Original languageEnglish
Title of host publication2016 AES International Conference on Headphone Technology
EditorsAlexander Lindau, Jurgen Peissig
PublisherAudio Engineering Society
Number of pages8
ISBN (Electronic)978-1-942220-09-1
Publication statusPublished - 19 Aug 2016
MoE publication typeA4 Article in a conference publication
EventAES International Conference on Headphone Technology - Aalborg, Denmark
Duration: 24 Aug 201626 Aug 2016
http://www.aes.org/conferences/2016/headphones/

Conference

ConferenceAES International Conference on Headphone Technology
CountryDenmark
CityAalborg
Period24/08/201626/08/2016
Internet address

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