2D to 3D upmixing based on perceptual band allocation (PBA)

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Listening tests were carried out to evaluate the performance of a 2D to 3D ambience upmixing technique based on 'Perceptual Band Allocation (PBA)', which is a novel vertical image extension method. 5-channel recordings were made with a 3-channel frontal microphone array and a 4-channel ambience array in a concert hall. The 4-channel ambience signals were low- and high-pass filtered at three different crossover frequencies: 0.5k, 1k and 4kHz. For 2D to 3D upmixing, the low-passed signals were routed to the corresponding lower-layer loudspeakers while the high-passed ones to the upper-layer loudspeakers configured in a 9-channel Auro 3D-inspired setup. Results suggested that the proposed method produced a similar or greater magnitude of perceived 3D listener envelopment compared to an original 9-channel ambience recording as well as the original 5-channel recording, depending on the crossover frequency.

Original languageEnglish
Title of host publication136th Audio Engineering Society Convention 2014
PublisherAudio Engineering Society
Number of pages7
ISBN (Print)9781632665065
Publication statusPublished - 2014
Event136th Audio Engineering Society Convention - Estrel Hotel and Convention Centre , Berlin, Germany
Duration: 26 Apr 201429 Apr 2014
Conference number: 136
http://www.aes.org/events/136/press/downloads.cfm (Link to Conference Website)


Conference136th Audio Engineering Society Convention
Abbreviated titleAES 2014
Internet address


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