SITA – Speech Intelligibility Transformation & Autocorrection

Better sound, less noise! That is the slogan of the SITA project funded by the Federal Ministry of Education and Research. The acronym stands for Speech Intelligibility Transformation & Autocorrection. The project is concerned with the improvement of speech intelligibility, especially in the area of multimedia. What does this mean in practice? Many viewers know the problem: Speech in a TV programme can be difficult to understand due to background music or what are known as atmospheric effects. SITA addresses the main causes for poor speech intelligibility along the whole distribution chain of a film and aims to eliminate technological barriers for people with and without hearing impairments. In a nutshell, the project focuses on all applications and hearing situations, commencing from the very start of a film production. A cross-platform software system for sound improvement in the area of media was already developed by the partners in the framework of the “SI4B – Speech Intelligibility for Broadcast” project. This is now being expanded here.

Responsibilities of Fraunhofer IDMT

The algorithms developed at Fraunhofer IDMT allow objective measurement as well as automatic improvement of speech intelligibility for specific target groups. The system is intended not only to help broadcasting companies, production firms, distributors and content providers to give end users a better listening experience. Service providers in the media sector and manufacturers in the area of home entertainment and consumer electronics should also profit.


Red when mumbling!

The Intelligibility Meter in Steinberg's Nuendo 11: The tool for sound creators with algorithms developed by Fraunhofer IDMT in Oldenburg provides an instrumental assessment of speech intelligibility.


SI4B – Speech Intelligibility for Broadcasting

The aim of the SI4B project is to develop latency-free algorithms for continuous and objective monitoring of speech intelligibility in production in the broadcast industry.


Oldenburg Branch for Hearing, Speech and Audio Technology HSA

The objective of the Oldenburg Branch for Hearing, Speech and Audio Technology HSA of the Fraunhofer Institute for Digital Media Technology IDMT is to transfer scientific findings related to hearing perception and man-machine interaction into technological applications.

The project SITA is funded by the German Ministry of Education and Research (BMBF).

Enhancement of Speech Intelligibility

Scientists at Fraunhofer IDMT develop software solutions which automatically analyse and optimise the intelligibility of speech – for applications ranging from railway station announcements and mobile phone calls through to car navigation systems.