音楽ホールにおける音に包まれた感じに対応する物理指標の検討

概要

論文の詳細を見る
A subjective experiment on listener envelopment (LEV) was carried out using synthesized sound fields in an anechoic room. The results are as follows. 1) The largest LEV was observed around azimuth 90 degree as to arriving direction of reverberation. 2) Longer reverberation time makes LEV larger. 3) Larger energy of reverberation makes LEV larger. 4) Left-to-right imbalance of reverberant energy makes LEV smaller. 5) Front-to-back imbalance of reverberant energy makes LEV smaller. 6) Reverberation arriving from frontal direction makes LEV larger than from behind. The results 1) to 5) generally coincide with previous works, but result 6) differs from them. Based on these results, SDR (spatial distribution of reverberation) was proposed as a measure of LEV. SDR shows higher correlation with the experimental results on LEV than already proposed measure LG by Bradley or SBTs by Hanyu.
社団法人日本建築学会の論文
2006-01-30