Sound Localization of Beamforming-Controlled Reflected Sound from Ceiling in Presence of Direct Sound

Sakamoto H, Haneda Y. Sound Localization of Beamforming-Controlled Reflected Sound from Ceiling in Presence of Direct Sound. In: AES Convention 144. Audio Engineering Society; 2018. Paper 9949. Available from: https://aes.org/publications/elibrary-page/?id=19466

@inproceedings{Sakamoto2018_19466,
  author = {Sakamoto, Hiroo and Haneda, Yoichi},
  title = {{Sound Localization of Beamforming-Controlled Reflected Sound from Ceiling in Presence of Direct Sound}},
  booktitle = {AES Convention 144},
  note = {Paper 9949},
  year = {2018},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19466}
}

TY  - CPAPER
TI  - Sound Localization of Beamforming-Controlled Reflected Sound from Ceiling in Presence of Direct Sound
AU  - Sakamoto, Hiroo
AU  - Haneda, Yoichi
T2  - AES Convention 144
M1  - Paper 9949
PY  - 2018
DA  - 2018/05/06
UR  - https://aes.org/publications/elibrary-page/?id=19466
PB  - Audio Engineering Society
LA  - en
AB  - Sound localization from the ceiling is important for 3D surround-sound systems, such as Dolby Atmos, 22.2 channel and higher-order ambisonics. Such systems are difficult to set up in a typical home environment owing to loudspeakers that must be placed on the ceiling. This problem can be solved by using the reflected sound from the ceiling through loudspeaker-array beamforming, such as in commercial sound bars. In the beamforming method, the listener always hears the jammer sound (side lobe) before he/she hears the main sound from the ceiling. To date, the relationship between the time and level differences in the direct and reflected sounds for sound image localization at the reflected position on the ceiling is not clear. This paper investigates this relationship through listening experiments. We also confirmed the localization at the ceiling by using a 32-element spherical loudspeaker array.
ER  -