音声のラウドネス主観評価値における変動量

概要

論文の詳細を見る
Subjective rating of speech loudness is carried out by determining a loudness balance between reference and test speech. The rating involves (1) the ability to discriminate variations in sound intensity when voices are the same. Since there is generally a timbre difference between two voices, the rating also entails (2) within-subject variations caused by fluctuations in judgement in regard to loudness balance for different measuring times and (3) between-subject variations caused by individually different loudness sensations. In this paper, these variations are investigated considering the influence of the speaker, the transmission frequency characteristics of the test system, the framework of the experiment, and the training given to the subject. Within-subject and between-subject variations are derived through the use of a sufficiently trained subject. Variation magnitudes are σ=1. 1dB and σ=1. 4dB, respectively, for a telephone transmission system.
社団法人日本音響学会の論文
1981-08-01