SI4B – Speech Intelligibility for Broadcasting

Intelligibility monitoring 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.

With the help of algorithms that evaluate the spectral, temporal and energetic properties of the speech and background signal, the intelligibility of a speech or mixed signal is modeled and displayed for each production step. With the help of the display to be developed, speech intelligibility can be monitored during the entire production process: Speech incomprehensibility, e.g. due to too "daring mixing ratios" (SNR) or insufficient quality during recording, can thus be avoided, and corresponding problems can be detected as they arise and reduced or eliminated.

Furthermore, speech intelligibility monitoring should offer the possibility to check sound mixes for target group-specific speech intelligibility or to produce mixes for special target groups.

Range of service of Fraunhofer IDMT

Development and evaluation of algorithms for testing and correcting of speech intellegibility at broadcasting


SI-Live – Realtime monitoring of speech intelligibility

In everyday work, it is crucial for efficient and successful communication. However, speech intelligibility is often impaired by e.g. background noise in the microphone signal, sub-optimal technical settings or interferences in the transmission channel.


SITA – Speech Intelligibility Transformation & Autocorrection

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.


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.