Presenting spa

Jorge Trevino, Shuichi Sakamoto, Yôiti Suzuki

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


High-order Ambisonics (HOA) presents spatial sound by controlling the sound field inside a compact region. Interactive applications require the listener to move freely; therefore, the listening zone must be shifted accordingly. Dynamic HOA systems face two challenges. First, the angular distribution of the loudspeakers depends on the listener's viewpoint, requiring different decoders as they move. Second, the presented sound field must gradually change, matching what would be heard in the actual world. This research tackles both problems with a modified HOA decoder that makes use of spherical harmonic shift operations. The proposal is evaluated by considering a 157-loudspeaker array. Results show no significant degradation in reproduction accuracy as the listening region is shifted, compared with the accuracy of conventional HOA.

Original languageEnglish
Title of host publicationProceedings of the 2016 AES International Conference
Subtitle of host publicationSound Field Control
EditorsRussell Mason, Jung-Woo Choi, Soren Bech
PublisherAudio Engineering Society
ISBN (Electronic)9781942220084
Publication statusPublished - 2016
Event2016 2nd AES International Conference on Sound Field Control - Guildford, United Kingdom
Duration: 2016 Jul 182016 Jul 20

Publication series

NameProceedings of the AES International Conference


Conference2016 2nd AES International Conference on Sound Field Control
Country/TerritoryUnited Kingdom


Dive into the research topics of 'Presenting spa'. Together they form a unique fingerprint.

Cite this