eess.AS - 2023-07-14

Reproducing the Velocity Vectors in the Listening Region

• paper_url: http://arxiv.org/abs/2307.07200
• repo_url: None
• paper_authors: Jiarui Wang, Thushara Abhayapala, Jihui Aimee Zhang, Prasanga Samarasinghe
• for: 这个论文是为了实现声场重现算法，特别是在低频下提高声场重现的效果。
• methods: 该论文提出了一种基于声速 вектор匹配的声场重现算法，其中使用了声场翻译的概念，从要求压力分布中获取声速 вектор的球面傅里叶约束。可以使用扩散式声麦数组进行测量，并将声速 веctor直接控制在听区域中，以提高声场重现的效果。
• results: 该论文预计可以在低频下提高声场重现的效果，因为直接控制声速 веctor在听区域中，可以更好地实现声场的重现。
  Abstract

  This paper proposes a sound field reproduction algorithm based on matching the velocity vectors in a spherical listening region. Using the concept of sound field translation, the spherical harmonic coefficients of the velocity vectors in a spherical region are derived from the desired pressure distribution. The desired pressure distribution can either correspond to sources such as plane waves and point sources, or be obtained from measurements using a spherical microphone array. Unlike previous work in which the velocity vectors are only controlled on the boundary of the listening region or at discrete sweet spots, this work directly manipulates the velocity vectors in the whole listening region, which is expected to improve the perception of the desired sound field at low frequencies.
  摘要

  (Simplified Chinese translation)这篇论文提出了一种基于匀速场匀速场匀速场的声场重建算法。通过声场翻译的概念，这篇论文从需要的压力分布中获得了匀速场中的匀速Vector的圆锥幂系数。需要的压力分布可以来自平面波、点源等源，或者通过圆形 Mikrofon 阵列进行测量。与先前的工作不同，这篇论文直接控制整个听区域内的匀速Vector，而不是仅在听区域边缘或 discrete sweet spots 上控制匀速Vector，这可能会在低频段提高所需的声场的感知。