複数スピーカを用いた拡声時における到来音の音質の変化が音声聴取に与える影響

概要

論文の詳細を見る
Noting the effect of tone quality variations of received sound in providing speech sound source using a multi- loudspeaker system on "ease of hearing," one of the subjective evaluation method for speech transmission quality, from the standpoint of evaluating speech transmission quality in a room sound field using electroacoustic systems, we conducted a basic study of the effect of factors on "ease of hearing" based on the results of tests in a sound field with the addition of direction of received sound, delay time gap and other directional parameters to variations in frequency characteristics of provided speech sound source. The results indicated that variations in the frequency characteristics of provided speech sound source have a strong effect on "ease of hearing." This furthermore suggests that, when designing the electric sound reinforcement system taking speech transmission quality into consideration, it is necessary to conduct comprehensive examinations taking the direction of received sound, delay time and other parameters into account as well as the tone quality of provided speech sound.
社団法人日本建築学会の論文
2001-09-30