Converting 5.1 audio recordings to B-format for directional audio coding reproduction

Author

Laitinen, Mikko-Ville ; Pulkki, Ville

Author_Institution

Sch. of Sci. & Technol., Dept. of Signal Process. & Acoust., Aalto Univ., Espoo, Finland

fYear

2011

fDate

22-27 May 2011

Firstpage

61

Lastpage

64

Abstract

A method to transform 5-channel surround sound signals to B-format is proposed, which provides unaltered spatial qualities when reproduced with directional audio coding (DirAC). The proposed method simulates anechoic B-format recording of the signals with two different virtual loudspeaker configurations, which are combined according to time-frequency analysis of diffuseness of the virtual sound field.

Keywords

anechoic chambers (acoustic); audio coding; audio recording; loudspeakers; time-frequency analysis; 5-channel surround sound signal transform; anechoic B-format signal recording; audio recording; directional audio coding; directional audio coding reproduction; time-frequency analysis; unaltered spatial quality; virtual loudspeaker configuration; virtual sound field; Audio coding; Frequency conversion; Layout; Loudspeakers; Microphones; System-on-a-chip; Time frequency analysis; B-format; Spatial audio;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on

Conference_Location

Prague

ISSN

1520-6149

Print_ISBN

978-1-4577-0538-0

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2011.5946328

Filename

5946328