The improvement of speech intelligibility for broadcasting content has been an important aspect of IRT’s work for many years. Dialog+ is the name of an additional service with enhanced speech intelligibility that promises to at least improve the current situation.
To ensure that these developments are not only valid in a lab context, but also provide real improvements to actual end users and consumers of broadcasting content, extensive listening tests have been conducted.
The results clearly show that Dialog+ in fact constitutes a real advantage for a large part of the target audience. While this should only be seen as a first starting point for this kind of services and there is obviously always room for improvement, it is encouraging that this is a step in the right direction.
Further information about the listening tests and Dialog+ in general can be found here:
Detailed Dialog+ end user listening test report (PDF, german)
Dialog+ und Dialogseparation zur Verbesserung der Sprachverständlichkeit im Rundfunk (german) in FKT 11/2020