There is an emerging need for comparable data for multi-microphone processing, particularly in acoustic sensor networks. However, commonly available databases are often limited in the spatial diversity of the microphones or only allow for particular signal processing tasks. In this paper, we present a database of acoustic impulse responses and recordings for a binaural hearing aid setup, 36 spatially distributed microphones spanning a uniform grid of (5x5) m^2 and 12 source positions. This database can be used for a variety of signal processing tasks, such as (multi-microphone) noise reduction, source localization, and dereverberation, as the measurements were performed using the same setup for three different reverberation conditions (T_60\approx{310, 510, 1300} ms). The usability of the database is demonstrated for a noise reduction task using a minimum variance distortionless response beamformer based on relative transfer functions, exploiting the availability of spatially distributed microphones.

翻译：对于多麦克风处理，特别是声学传感器网络中的数据可比性需求日益增长。然而，现有常用数据库往往受限于麦克风空间多样性不足，或仅支持特定信号处理任务。本文介绍了一个面向双耳助听器配置的声学脉冲响应与录音数据库，包含36个空间分布式麦克风，均匀分布在(5x5)平方米的网格上，以及12个声源位置。该数据库可用于多种信号处理任务，如（多麦克风）降噪、声源定位和去混响，因为所有测量均在三种不同混响条件下（T_60≈310、510、1300 ms）采用相同配置进行。通过基于相对传递函数的最小方差无失真响应波束形成器利用空间分布式麦克风，我们演示了该数据库在降噪任务中的实用性。