Interaction between audio and video on human perception by using HDTV

Abstract

Objective evaluation methods that could manage and observe the overall AV quality are being researched and developed. The objective of such projects is to focus on the overall quality, not only the individual quality of video and sound, as well as their interaction. In this paper, High Definition (HD) video and 2-channel audio was used to examine the overall quality changes produces as a result of changes in the "Brightness" of video. Subsequently, five kinds of factors were obtained by crossing out the factor analysis with the results of the SD method. The following step is to analyze the relation between 5 kinds of factors obtained and the brightness. As a result, only the "Realistic sensations"factor was affected by the change in brightness. Moreover, it has been observed that all five factors were significantly influenced by the video contents.