A Delay-Flexible Stereo Acoustic Echo Cancellation for DFT-Based In-Car Communication (ICC) Systems

Jan Franzen, Tim Fingscheidt


In-car communication (ICC) systems supporting speech communication in noise by reproducing amplified speech from the car cabin in the car cabin ask for low-delay acoustic echo cancellation (AEC). In this paper we propose a delay-flexible DFT-based stereo AEC capable of cancelling also the echoes stemming from the audio player or FM radio. For the price of a somewhat higher complexity we are able to reduce the 32 ms delay of the baseline down to 4 ms, loosing only 1 dB in ERLE while even preserving system distance properties.


 DOI: 10.21437/Interspeech.2017-1084

Cite as: Franzen, J., Fingscheidt, T. (2017) A Delay-Flexible Stereo Acoustic Echo Cancellation for DFT-Based In-Car Communication (ICC) Systems. Proc. Interspeech 2017, 181-185, DOI: 10.21437/Interspeech.2017-1084.


@inproceedings{Franzen2017,
  author={Jan Franzen and Tim Fingscheidt},
  title={A Delay-Flexible Stereo Acoustic Echo Cancellation for DFT-Based In-Car Communication (ICC) Systems},
  year=2017,
  booktitle={Proc. Interspeech 2017},
  pages={181--185},
  doi={10.21437/Interspeech.2017-1084},
  url={http://dx.doi.org/10.21437/Interspeech.2017-1084}
}