The sound levels of advertisements (CMs) in Japanese conventional terrestrial analogue broadcasting (TAB) were quantitatively compared with those in Japanese terrestrial digital broadcasting (TDB). The results show that the averaged CM-sound level in TDB was about 2 dB lower and the averaged standard deviation was wider than those in TAB, while there were few differences between TAB and TDB at some TV station. Some CMs in TDB were perceived clearly louder than the adjacent programs although the sound level differences between the CMs and the programs were only within ?}2 dB. Next, insertion methods of CMs into the main programs in Japan were qualitatively investigated. The results show that some kinds of the methods could unacceptably irritate viewers.
Miyasaka, Eiichi; Kimura, Akiko
Affiliation: Musashi Institute of Technology
AES Convention: 125 (October 2008) Paper Number: 7568
Publication Date: October 1, 2008
Subject: Listening Tests & Psychoacoustics
No AES members have commented on this paper yet.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.