Perceptual Optimization of Sound Masking Systems

声音掩蔽系统在建筑物中越来越受欢迎，以克服开放式空间的声学挑战。随着声音掩蔽系统的发展，该系统也带来了新的挑战，需要正确理解和解决。SoftdB目前关注的两个挑战是：空间和时间掩蔽声音优化，以确保人体舒适度。因此，本提案的目的是基于Soft dB的声音掩蔽产品及其在 ** 现场的应用，评估建筑物居住者的主观印象，以帮助他们优化产品设计和应用对掩蔽 ** 声音感知主观质量的影响。为了实现这一目标，我们计划解决三个子研究目标（RO）：1）** 评估声音掩蔽系统的声场空间扩散，2）确定声音掩蔽系统的不均匀性 ** 的可接受性，以及3）量化基于定时器和 ** 基于自适应水平的声音掩蔽系统的主观和客观效益。该项目提供的证据将大大提高噪声控制行业生产更有效的声音掩蔽设备的能力。预计 ** 拟议项目不仅将帮助SoftdB改进其产品，还将有助于加拿大更好的建筑设计技术。

The sound masking system gains popularity in buildings to overcome an acoustic challenge of open-plan space.**As the growth of the sound masking system, the system has given rise to new challenges, that need to be**properly understood and addressed. There are currently two challenges concerned by SoftdB; spatial and**temporal masking sound optimization for human comfort. The goal of this proposal is, therefore, to evaluate**subjective impression of building occupants, based on Soft dB's sound masking product and its application on**site, to help them optimize their product's design and application impacts on subjective quality of masking**sound perception. To achieve this objective, we plan to address three sub research objectives (RO): 1)**evaluating sound field spatial diffuseness of sound masking system, 2) determining acceptability of unevenness**of sound masking system, and 3) quantifying the subjective and objective benefit of timer-based and**adaptive-level based sound masking systems. The evidence provided by this project will greatly improve noise**control industry's capabilities in producing more efficient sound masking device. It is expected that the**proposed project will not only help SoftdB to improve their products but will also contribute to better building**design technologies in Canada.