The performance of a two-listener personal sound zone (PSZ) system consisting of eight frontal mid-range loud-speakers in a listening room was evaluated for the case where the PSZ filters were designed with the individualized BRTFs of a human listener, and compared to the case where the filters were designed using the generic BRTFs of a dummy head. The PSZ filters were designed using the pressure matching method and the PSZ performance was quantified in terms of measured Acoustic Contrast (AC) and robustness against slight head misalignments. It was found that, compared to the generic PSZ filters, the individualized ones significantly improve AC at all frequencies (200-7000 Hz) by an average of 5.3 dB and a maximum of 9.4 dB, but are less robust against head misalignments above 2 kHz with a maximum degradation of 3.6 dB in average AC. Even with this degradation, the AC spectrum of the individualized filters remains above that of their generic counterparts. Furthermore, using generic BRTFs for one listener was found to be enough to degrade the AC for both listeners, implicating a coupling effect between the listeners’ BRTFs.
Authors:
Qiao, Yue; Choueiri, Edgar
Affiliation:
Princeton University, Princeton, NJ, USA
AES Convention:
152 (May 2022)
Paper Number:
10579
Publication Date:
May 2, 2022
Subject:
Binaural Audio
Download Now (2.7 MB)
This paper is Open Access which means you can download it for free.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.