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Directivity Based Multichannel Audio Signal Processing For Microphones in Noisy Acoustic Environments

  • Simon Grimm examines new multi-microphone signal processing strategies that aim to achieve noise reduction and dereverberation. Therefore, narrow-band signal enhancement approaches are combined with broad-band processing in terms of directivity based beamforming. Previously introduced formulations of the multichannel Wiener filter rely on the second order statistics of the speech and noise signals. The author analyses how additional knowledge about the location of a speaker as well as the microphone arrangement can be used to achieve further noise reduction and dereverberation.

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Author:Simon GrimmGND
Publisher:Springer Vieweg
Place of publication:Wiesbaden
Referee:Jürgen FreudenbergerORCiDGND, Gerhard Schmidt
Advisor:Jürgen Freudenberger
Document Type:Doctoral Thesis
Year of Publication:2018
Granting Institution:Universität Ulm
Date of final exam:2018/06/13
Release Date:2018/12/20
Pagenumber:XII, 127
Institutes:Institut für Optische Systeme - IOS
Institut für Systemdynamik - ISD
Relevance:Abgeschlossene Dissertation
Open Access?:Nein