Title :
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
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;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0538-0
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2011.5946328
