Improving perceived elevation accuracy in sound reproduced via a loudspeaker ring by means of equalizing filters and side loudspeaker grouping

• Villegas Julián

  Computer Arts Laboratory, University of Aizu

抄録

A spatialization method for loudspeakers arranged in a ring layout (like the one specified in the ITU recommendation ITU-R BS.775) is presented. The proposed method can be described as an improvement to amplitude panning methods in which a frequency-dependent gain is applied to mitigate the effect of loudspeaker locations on the desired signal. By grouping side loudspeakers it is possible to display elevated sources, which is difficult to achieve otherwise in single layer loudspeaker arrays. Objective evaluations showed that the proposed method produces less spectral distortion than 2D-VBAP, but degrades to cross-talk cancellation. Experimental results suggest that, despite the differences regarding cross-talk cancellation, the proposed method yields accurate azimuth and elevation estimations of sound sources in anechoic and echoic conditions except when they are located below the ear level.

収録刊行物

• Acoustical Science and Technology

  Acoustical Science and Technology 40 (2), 127-137, 2019-02-01

  一般社団法人 日本音響学会

キーワード

• Loudspeakers array
• Elevation perception
• Equalizing filters
• Sound spatialization

詳細情報

• CRID: 1390845713056584192
• NII論文ID: 130007606490
• NII書誌ID: AA11501808
• DOI: 10.1250/ast.40.127
• ISSN: 13475177
• ISSN: 03694232
• ISSN: 13463969
• NDL書誌ID: 029542961
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029542961
• Web Site: https://www.jstage.jst.go.jp/article/ast/40/2/40_E1854/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
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