Speech Intelligibility in TV

Tech Review 2022

Speech intelligibility of broadcast audio depends on many factors.

Open file (pdf, 0.7 MB)

At the broadcaster, recording, processing, mixing and deficiencies in the transmission chain all play a part. At home, the receiver technology, the acoustic conditions in the listening room and the individual hearing characteristics of the listener all have a bearing. The problem is very complex.

Despite various recommendations, guidelines, directives and publications, complaints continue to arise. Audience reactions thereby reflect a wide range of individual auditory impressions.

The article examines several factors that can influence sound quality from a programme’s conception to its consumption at home, looking at the various technical, economic and even speaker/performance issues that affect speech intelligibility.


Keywords: Speech Intelligibility, Loudness Normalisation, Inclusion, Access Service, Sound Quality, Speech Comprehension, Hearing Loss.