Perceptual band allocation (PBA) for the rendering of vertical image spread with a vertical 2D loudspeaker array

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2 Citations (Scopus)


A series of subjective experiments were conducted to investigate a novel vertical image rendering method named 'Perceptual Band Allocation (PBA)', using octave bands of pink noise with a vertical 2D reproduction setup with main and height loudspeaker pairs. The perceived height of each octave band was first measured for the main and height loudspeakers individually. Results suggested a significant difference between monophonic and stereophonic images in the perceived relationship between frequency and height. Six different test conditions have been created aiming for various degrees of vertical image spread, in such a way that each frequency band was mapped to either the main or height loudspeaker layer based on the results from the localisation experiment. Multiple comparison tests were conducted to grade the perceived magnitude of vertical image spread. It was generally found that various degrees of vertical image spread could be rendered using different PBA schemes, but the perceived results did not fully match predicted results based on the localisation results. Differences between the main and height loudspeaker layers in the spectral weightings of ear-input signal at certain frequencies was identified as one of the factors that influenced this result.

Original languageEnglish
Title of host publication138th Audio Engineering Society Convention, AES 2015
PublisherAudio Engineering Society
Number of pages8
ISBN (Electronic)9781510806597
Publication statusPublished - 1 Aug 2015
Event138th Audio Engineering Society Convention - Sofitel Victoria Hotel, Warsaw, Poland
Duration: 7 May 201510 May 2015
Conference number: 138 (Link to Convention Website)


Conference138th Audio Engineering Society Convention
Abbreviated titleAES 2015
Internet address


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