Data Repository for MYRiAD: A Multi-Array Room Acoustic Database
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In the development of acoustic signal processing algorithms, their evaluation in various acoustic environments is of utmost importance. In order to advance evaluation in realistic and reproducible scenarios, several high-quality acoustic databases have been developed over the years. In this paper, we present another complementary database of acoustic recordings, referred to as the Multi-arraY Room Acoustic Database (MYRiAD). The MYRiAD database is unique in its diversity of microphone configurations suiting a wide range of enhancement and reproduction applications (such as assistive hearing, teleconferencing, or sound zoning), the acoustics of the two recording spaces, and the variety of contained signals including 1214 room impulse responses (RIRs), reproduced speech, music, and stationary noise, as well as recordings of live cocktail parties held in both rooms. The microphone configurations comprise a dummy head (DH) with in-ear omnidirectional microphones, two behind-the-ear (BTE) pieces equipped with 2 omnidirectional microphones each, 5 external omnidirectional microphones (XMs), and two concentric circular microphone arrays (CMAs) consisting of 12 omnidirectional microphones in total. The two recording spaces, namely the SONORA Audio Laboratory (SAL) and the Alamire Interactive Laboratory (AIL), have reverberation times of 2.1s and 0.5s, respectively. Audio signals were reproduced using 10 movable loudspeakers in the SAL and a built-in array of 24 loudspeakers in the AIL. MATLAB and Python scripts are included for accessing the signals as well as microphone and loudspeaker coordinates. For a detailed description, please refer to the paper (preprint, published). Two files are provided, containing two different versions of the database: MYRiAD_V2.zip The full version of the database (31.3 GB). MYRiAD_V2_econ.zip The economy-sized version, containing source signals and RIRs only (201.7 MB). If you use the database, please cite the paper as follows: @article{dietzen2023myriad, author = {Dietzen, T. and Ali, R. and Taseska, M. and van Waterschoot, T.}, title = {{MYRiAD}: A Multi-Array Room Acoustic Database}, journal = {EURASIP J. Audio Speech Music Process.}, volume = {2023, article no. 17}, number = {}, month = {Apr.}, year = {2023}, pages = {1--14} } ___________________________________________________________________________________________________________ Change log (as compared to Version 1.0): Fixed erroneous file names in /audio/AIL/SU1/P2/. In the full version, applied a time shift to some of the speech, noise, and music recordings in the SAL (at most 2 samples, compensating for a slow phase drift, see manuscript for further details). Created an economy-sized version of the database containing source signals and RIRs only. Adjusted the following scripts for the economy-sized version: - /tools/MATLAB/load_audio_data.m - /tools/Python/load_audio_data.py
在声学信号处理算法的研发过程中，在各类声学环境下对其进行评估至关重要。为了在真实且可复现的场景中推进评估工作，多年来学界已开发出多个高质量声学数据库。本文介绍了一款补充性声学录音数据库，命名为多阵列房间声学数据库（Multi-arraY Room Acoustic Database, MYRiAD）。 MYRiAD数据库的独特性体现在三方面：一是适配各类增强与重放应用（例如助听、电话会议或声音分区）的多样麦克风配置方案；二是两个录制空间的声学特性差异；三是丰富的收录内容，包含1214条房间脉冲响应（Room Impulse Responses, RIRs）、重放语音、音乐与平稳噪声，以及两个房间内现场举办的鸡尾酒会录音。 该数据库采用的麦克风配置包括：带入耳式全向麦克风的假人头（Dummy Head, DH）、2组每组分装2个全向麦克风的耳背式（Behind-the-Ear, BTE）设备、5个外置全向麦克风（External Microphones, XMs），以及2组总计包含12个全向麦克风的同心圆形麦克风阵列（Concentric Circular Microphone Arrays, CMAs）。 本次录制的两个空间分别为SONORA音频实验室（SONORA Audio Laboratory, SAL）与Alamire交互实验室（Alamire Interactive Laboratory, AIL），二者的混响时间分别为2.1秒与0.5秒。音频信号在SAL中通过10台可移动扬声器重放，在AIL中则通过内置的24扬声器阵列重放。 本数据库附带MATLAB与Python脚本，用于读取信号以及获取麦克风与扬声器的坐标信息。如需详细了解，请参阅本文（预印本已正式发表）。本次提供两个文件，包含该数据库的两个不同版本： - MYRiAD_V2.zip：数据库完整版，大小为31.3 GB。 - MYRiAD_V2_econ.zip：精简版，仅包含源信号与房间脉冲响应，大小为201.7 MB。 若使用该数据库，请按以下格式引用本文： @article{dietzen2023myriad, author = {Dietzen, T. and Ali, R. and Taseska, M. and van Waterschoot, T.}, title = {{MYRiAD}: A Multi-Array Room Acoustic Database}, journal = {EURASIP J. Audio Speech Music Process.}, volume = {2023, article no. 17}, number = {}, month = {Apr.}, year = {2023}, pages = {1--14} } ___________________________________________________________________________________________________________ ### 相较于1.0版本的更新日志： 1. 修复了/audio/AIL/SU1/P2/路径下错误的文件名； 2. 在完整版中，对SAL内部分语音、噪声与音乐录音施加了最大偏移量为2个采样点的时移，用于补偿缓慢的相位漂移（详细信息请参阅手稿）； 3. 创建了仅包含源信号与房间脉冲响应的精简版数据库； 4. 针对精简版调整了以下脚本： - /tools/MATLAB/load_audio_data.m - /tools/Python/load_audio_data.py
