Key Laboratory of Modern Acoustics (Ministry of Education), Nanjing University, Nanjing 210093, China.
J Acoust Soc Am. 2023 Feb;153(2):835. doi: 10.1121/10.0017101.
The aim of multizone sound reproduction is to reproduce different sound programs to different spatial zones in a common space using a set of loudspeakers. Several multizone sound reproduction methods have been developed over the past few decades, and most of them assume that there are no listeners in the listening area. However, when listeners enter the listening area, the scattering effects will reduce the performance of the multizone sound reproduction system. In this paper, an adaptive control method of scattering effects is proposed for multizone sound reproduction. The proposed method models the scattering effects based on the equivalent source method and uses adaptive filters to estimate the scattering effect by a small number of additional microphones. To validate the proposed method, several simulations are presented. The results of the simulations indicate that the proposed adaptive method exhibits good performance when used in multizone sound reproduction with the scattering effects.
多区域声音再现的目的是使用一组扬声器将不同的声音节目再现到公共空间中的不同空间区域。在过去的几十年中，已经开发出了几种多区域声音再现方法，其中大多数方法假设在聆听区域中没有听众。然而，当听众进入聆听区域时，散射效应会降低多区域声音再现系统的性能。在本文中，提出了一种用于多区域声音再现的散射效应自适应控制方法。所提出的方法基于等效源方法对散射效应进行建模，并使用自适应滤波器通过少量附加麦克风来估计散射效应。为了验证所提出的方法，提出了几个仿真。仿真结果表明，所提出的自适应方法在具有散射效应的多区域声音再现中具有良好的性能。
