@InProceedings{Krüger2011_35,
author = {Hauke Krüger and Thomas Schumacher and Marco Jeub and Peter Vary},
booktitle = {Studientexte zur Sprachkommunikation: Elektronische Sprachsignalverarbeitung 2011.},
title = {Combined analog/digital broadband feedback ANC for headsets},
year = {2011},
editor = {Bernd J. Kröger and Peter Birkholz},
month = mar,
pages = {213--220},
publisher = {TUDpress, Dresden},
abstract = {In this paper a novel approach for improved broadband feedback ANC is
presented which is based on the combination of classical non-adaptive and adap-
tive feedback ANC techniques. The non-adaptive part is suitable to attenuate ambient
noise at low frequencies whereas the adaptive part attenuates periodic components
of the ambient noise at all frequencies. Compared to other approaches
involving hybrid feedback ANC techniques, e.g., [1], in the proposed approach, the
two ANC parts are decoupled which has the benefit to allow for independent design
and optimization of both parts.
The proposed technique yields a higher overall noise attenuation performance compared
to a purely classical non-adaptive feedback or purely adaptive feedback ANC
system. Also, it leads to a more comfortable perception of the residual ambient
noise compared to currently available ANC headsets. In addition to that, the
combination of both techniques is also beneficial for practical realizations since
the adaptive feedback ANC stabilizes the overall system. With regard to low cost
headset devices, a mixed analog-digital realization of the new approach is proposed
which allows for the extension of existing purely classical analog feedback systems
by simply adding a digital circuitry on top.},
isbn = {978-3-942710-37-4},
issn = {0940-6832},
keywords = {Poster zu verschiedenen Themenbereichen},
url = {https://www.essv.de/pdf/2011_213_220.pdf},
}