J Acoust Soc Am. 2010 Oct;128(4):EL163-8. doi: 10.1121/1.3484233.
Three experiments on loudness of sounds with linearly increasing levels were performed: global loudness was measured using direct ratings, loudness change was measured using direct and indirect estimations. Results revealed differences between direct and indirect estimations of loudness change, indicating that the underlying perceptual phenomena are not the same. The effect of ramp size is small for the former and important for the latter. A similar trend was revealed between global loudness and direct estimations of loudness change according to the end level, suggesting they may have been confounded. Measures provided by direct estimations of loudness change are more participant-dependent.
使用直接评价测量整体响度，使用直接和间接估计测量响度变化。结果显示了响度变化的直接和间接估计之间的差异，表明潜在的感知现象并不相同。前者的斜坡大小效应较小，而后者的效应重要。根据结束水平，整体响度和直接估计的响度变化之间也显示出相似的趋势，表明它们可能混淆在一起。响度变化的直接估计提供的测量结果更依赖于被试。
