Speech intelligibility enhancement for public address systems
Topic: In this project, the goal is to investigate the problem of noise PSD estimation for speech intelligibility enhancement of public address systems under noisy and reverberant conditions.
Society has become very much dependent on the use of digital speech communication systems, e.g., telephony, hearing aids and public address systems. Ideally, such systems improve or at least maintain intelligibility. However, in practice, intelligibility is often degraded due to the presence of noise in the environment of the human (or machine) observer. An example would be a public address system, or mobile phone at a train station, while a train passes by. Several algorithms have been developed to increase the speech intelligibility in noise. However, all these algorithms depend on knowledge of the noise statistics.
Project outside the universityIn Delft in collaboration with Bosch security systems
AssignmentIn this project, the goal is to investigate the problem of noise PSD estimation for speech intelligibility enhancement of public address systems under noisy and reverberant conditions.
RequirementsThis project requires knowledge on at least:
- signal processing
- stochastic/random processes
- Digital audio and speech processing (in particular speech enhancement)
- experience with Matlab
dr.ir. Richard Hendriks
Circuits and Systems Group
Department of Microelectronics
Last modified: 2014-09-18