Sehr geehrte Abonnenten des Kolloquium-Newsletters,

gerne informieren wir Sie über den nächsten Termin unseres Kommunikationstechnischen Kolloquiums.

Mittwoch, 15. Juli 2020
Vortragender: Jérôme Biot
Zeit: 11:00 Uhr
Ort: https://rwth.zoom.us/j/97904157921?pwd=SWpsbDl0MWhrWjY1ZkZaeFRoYmErZz09

        Meeting-ID: 979 0415 7921
        Passwort: 481650

Master-Vortrag: Acoustic Head-Tracking in Adaptive Crosstalk Cancellation Systems

In order to accurately reproduce an acoustic scene for a listener, a technique known as binaural reproduction is used. A binaural signal consists of two channels containing a different signal for each ear depending on the listener's position relative to the sound source. When trying to replicate a binaural signal over headphones, perfect channel separation is guarantedd, meaning that the binaural signals designated for the left and right ear respectively are only transmitted to the corresponding ear. When a loudspeaker system is used on the other hand, crosstalk between the two binaural signals is an issue and has to be cancelled by the corresponding crosstalk cancellation (CTC) filters. In adaptive crosstalk cancellation (ACTC) systems, these filters are adapted in real-time by placing two microphones close to the ear positions to measure the incoming sound signals and estimate the corresponding impulse responses.

The goal of this thesis is to acoustically estimate the position and orientation of a listener's head based on these impulse responses in order to adapt the binaural signals of the acoustic scene. Based on geometric relations in free space, an estimation of the position and orientation of the listener can be done. Several algorithms for 2D and 3D space have been implemented and compared against each other in terms of accuracy and real-time capability.

Alle Interessierten sind herzlich eingeladen, eine Anmeldung ist nicht erforderlich.

Allgemeine Informationen zum Kolloquium, sowie eine aktuelle Liste der Termine des Kommunikationstechnischen Kolloquiums finden Sie unter:
http://www.iks.rwth-aachen.de/aktuelles/kolloquium/

-- 
Irina Ronkartz
Institute of Communication Systems (IKS)
RWTH Aachen University
Muffeter Weg 3a, 52074 Aachen, Germany
+49 241 80 26958 (phone)
ronkartz@iks.rwth-aachen.de
http://www.iks.rwth-aachen.de/