用多维尺度分析法，从听觉感知中提炼出5个房间声学维度。
Non-verbal Perception of Room Acoustics using Multi Dimensional Scaling Metho
- 通过双耳混响响应与音乐混合，用多维尺度分析提取听觉维度。
- 识别出5个关键感知维度：回声密度、分形相关维数、粗糙度、响度和早期衰减时间。
- 适合声学设计、音频工程及听觉感知研究者参考。
主观的房间声学印象对音乐会场馆的演出表现与听众体验至关重要。自20世纪以来，声学研究一直关注客观声学参数与主观感知之间的关系。传统方法包括将专家基于长期记忆的评分与声学指标相关联，或让听众在双极量表上评价声学虚拟化结果并寻找客观对应。本文提出一种新方法：将音乐与双耳房间冲激响应（binaural room impulse response）混合，利用多维尺度分析（MDS）识别房间声学的感知维度。结果表明，房间声学感知包含5个可解释的维度，分别由回声密度、分形相关维数、粗糙度、响度和早期衰减时间等（心理）声学指标所解释。
原文摘要 · Abstract (English)
Subjective room acoustics impressions play an important role for the performance and reception of music in concert venues and auralizations. Therefore, room acoustics since the 20th century dealt with the relationship between objective, acoustic parameters and subjective impressions of room acoustics. One common approach is to correlate acoustic measures with experts' subjective ratings of rooms as recalled from their long-term memory, and explain them using acoustical measures. Another approach is to let listeners rate auralized room acoustics on bipolar scales and find objective correlates. In this study, we present an alternative approach to characterizing the subjective impressions of room acoustics. We concolve music with binaural room impulse response measurements and utilize Multi Dimensional Scaling (MDS) to identify the perceptual dimensions of room acoustics. Results show that the perception of room acoustics has $5$ dimensions that can be explained by the (psycho-)acoustical measures echo density, fractal correlation dimension, roughness, loudness, and early decay time.
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