Automatic multi-channel room acoustics correction

We developed a low-frequency automatic room acoustics correction approach for single- and multi-channel sound reproduction setups. Our approach alleviates the variability of the room impulse response in a wide listening area, while automatically detecting and mitigating the effects of strong resonances. The room correction filters are optimized in order to avoid the problems such as loudspeaker frequency distortions, sound localization bias, and temporal distortions in the form of pre- and post-echoes.

Related publications

  • [PDF] M. Kolundzija, “Spatial acoustic signal processing,” PhD Thesis, 2012.
    [Bibtex]
    @phdthesis{kolundzijaspatial,
    title={Spatial Acoustic Signal Processing},
    author={Kolundzija, Mihailo},
    year={2012},
    school={PhD thesis, {EPFL}, Lausanne, Switzerland}
    }
  • [PDF] M. Kolundzija, C. Faller, and M. Vetterli, “Multi-channel low-frequency room equalization using perceptually motivated constrained optimization,” in Acoustics, Speech and Signal processing (ICASSP), 2012 IEEE international conference on, 2012, pp. 533-536.
    [Bibtex]
    @inproceedings{kolundzija2012multi,
    title={Multi-channel low-frequency room equalization using perceptually motivated constrained optimization},
    author={Kolundzija, Mihailo and Faller, Christof and Vetterli, Martin},
    booktitle={{A}coustics, {S}peech and {S}ignal Processing ({ICASSP}), 2012 {IEEE} International Conference on},
    pages={533--536},
    year={2012},
    organization={IEEE}
    }

Interested in working together?

We are currently looking for partners that will actively support our development.

Contact us