3D Wideband Acoustic Noise Cancellation for Large Volumes

随着我们城市的发展和人口密度的增加，声学噪声成为我们面临的主要问题。 城市社区。噪声的有害影响已被充分证明。到目前为止， 减少不想要的声学噪声的成功方法包括将无源绝缘材料放置在 噪声源和感兴趣的区域。虽然这对高频噪声相当有效，但它不是 在较低频率下尤其有效。更重要的是，被动绝缘的突出性质 这种方法在很多情况下都无法使用。 该项目是Alphatron Technology和SFU研究人员之间的一项新的合作伙伴关系，其目标是 研究了大批量宽带有源噪声消除（ANC）的可行性。这样的系统将 允许用户在大的区域（例如房间或办公室）周围移动，并且将减少不想要的噪声 无需携带耳机或靠近系统的麦克风和扬声器。的潜在 这种解决方案对住宅、商业和公共建筑物中噪音降低的影响是巨大的。

As our cities grow and their population densities increase, acoustic noise becomes a major problem facing urban communities. Detrimental effects of acoustic noise have been well documented. Thus far, the most successful ways of reducing unwanted acoustic noise have included passive insulating material placed between the noise source and the area of interest. While this works reasonably well for high frequency noise, it is not particularly effective at lower frequencies. More importantly, the obtrusive nature of passive insulation prevents this method from being used in many cases. The proposed project is a new partnership between Alphatron Technology and SFU researchers with the goal to investigate the feasibility of wideband active noise cancellation (ANC) in large volumes. Such a system would allow the user to move around a large area, such as a room or an office, and would reduce the unwanted noise without the need to carry headphones or stay close to the system's microphones and loudspeakers. The potential impact of such as solution on noise reduction in residential, commercial and public buildings is enormous.