M. Sc. Rasool Al-Mafrachi

Room B-Audiolab
Kaiserstraße 2, 24143 Kiel, Germany
Phone: +49 431 880-6141
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


Research: In-Car-Communication

Within car-cabins there is a huge amount of background noise, which leads to a more difficult communication between several passengers. In-car-communication systems can help to enhance the communication and also to ensure a greater safety.

The idea is to use several microphones and speakers, which are distributed in the car-cabin to record the talking passengers voice and play it back over the loudspeakers located at the not talking passengers. In such systems feedback occures because the sound, which comes out of the speakers is again recorded by the microphones. This is why a feedback suppression gets necessary to ensure a system stability at sufficient amplification.

Related topics:

  • Real-time signal processing
  • Adaptive filters
  • Noise suppression
  • Echo and feedback suppression
  • Acuostic localization and estimation of head orientation


Further interests:

  • Electronics instrumentation
  • Database design
  • Networks


Short CV

Time span Details
2017 - current Research assistant at the Christian-Albrechts-Universität zu Kiel, Kiel, Germany
2014 - 2016 Assist. lecturer at University of Technology, Baghdad, Iraq
2013 - 2014 MSc. in Computer and Network Engineering at Sheffield Hallam University, Sheffield, UK
2010 - 2013 Laboratory engineer at University of Technology, Baghdad, Iraq
2007 - 2010 BSc. in Computer Engineering at University of Technology, Baghdad, Iraq




    T. Hübschen, R. Al-Mafrachi, G. Schmidt: Impact of a Speaker Head Rotation on the Far-end Listening Situation, Proceedings of the 14th ITG Conference on Speech Communication, September 2021


    Rasool Al-Mafrachi, Marco Gimm, Gerhard Schmidt: A Robust Acoustic Head Orientation Estimation and Speech Enhancement for In-Car Communication Systems, Proc. DAGA, Germany, 2019


    R. Al-Mafrachi, M. Gimm, G. Schmidt: Estimation of the Head Orientation for In-Car Communication Systems, DAGA 2018