The perception of vertical image spread by interchannel decorrelation

Christopher Gribben, Hyunkook Lee

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

2 Citations (Scopus)


Subjective listening tests were conducted to assess the general perception of decorrelation in the vertical domain. Interchannel decorrelation was performed between a pair of loudspeakers in the median plane; one at ear level and the other elevated 30° above. The test stimuli consisted of decorrelated octave-band pink noise samples (638000Hz), generated using three decorrelation techniques - each method featured three degrees of the interchannel cross-correlation coefficient (ICCC): 0.1, 0.4 and 0.7. Thirteen subjects participated in the experiment, using a pairwise comparison method to grade the sample with the greater perceived vertical image spread (VIS). Results suggest there is broadly little difference of overall VIS between decorrelation methods, and changes to vertical interchannel decorrelation appear to be better perceived in the upper-middle-frequencies.

Original languageEnglish
Title of host publication140th Audio Engineering Society International Convention 2016, AES 2016
PublisherAudio Engineering Society
Publication statusPublished - 26 May 2016
Event140th Audio Engineering Society International Convention - Paris, France
Duration: 4 Jun 20167 Jun 2016
Conference number: 140 (Link to Conference Website)


Conference140th Audio Engineering Society International Convention
Abbreviated titleAES 2016
Internet address


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