Preliminary Evaluation of Sweet Spot Size in Virtual Sound Reproduction Using Dipoles

Lacouture Parodi Y, Rubak P. Preliminary Evaluation of Sweet Spot Size in Virtual Sound Reproduction Using Dipoles. In: AES Convention 126. Audio Engineering Society; 2009. Paper 7723. Available from: https://aes.org/publications/elibrary-page/?id=14919

@inproceedings{LacoutureParodi2009_14919,
  author = {Lacouture Parodi, Yesenia and Rubak, Per},
  title = {{Preliminary Evaluation of Sweet Spot Size in Virtual Sound Reproduction Using Dipoles}},
  booktitle = {AES Convention 126},
  note = {Paper 7723},
  year = {2009},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14919}
}

TY  - CPAPER
TI  - Preliminary Evaluation of Sweet Spot Size in Virtual Sound Reproduction Using Dipoles
AU  - Lacouture Parodi, Yesenia
AU  - Rubak, Per
T2  - AES Convention 126
M1  - Paper 7723
PY  - 2009
DA  - 2009/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14919
PB  - Audio Engineering Society
LA  - en
AB  - In a previous study, three crosstalk cancellation techniques were evaluated and compared under different conditions. Least square approximations in frequency and time domain were evaluated along with a method based on minimum-phase approximation and a frequency independent delay. In general, the least square methods outperformed the method based on minimum-phase approximation. However, the evaluation was only done for the best-case scenario, where the transfer functions used to design the filters correspond to the listener's transfer functions and his/her location and orientation relative to the loudspeakers. In this paper we present a follow up evaluation of the performance of the three inversion techniques when these conditions are violated. A setup to measure the sweet spot of different loudspeakers arrangements is described. Preliminary measurement results are presented for loudspeakers placed at the horizontal plane and an elevated position, where a typical 60 degrees stereo setup is compared with two closely spaced loudspeaker. Additionally, two- and four-channels arrangements are evaluated.
ER  -