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.

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.

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