International Journal of Speech Technology

, Volume 18, Issue 1, pp 91–95 | Cite as

Adaptive estimation and reshaping of room impulse response

  • Tiemin Mei
  • Pengcheng Hang
  • Alfred Mertins


In this paper, we focus on the reverberation depression in scenarios such as hand-free telephone and teleconference system applications. The combination of cross-relation based blind room impulse response (RIR) estimation and the p-norm based channel reshaping leads to this adaptive reverberation depression scheme. The normalized multi-channel frequency-domain least-mean-square (NMCFLMS) algorithm is used for RIR estimation and the p-norm optimization approach for channel reshaping. Simulations show that it is possible to establish such a post-processing system for reverberation depression. Listening tests verified that reverberation is hardly heard after channel reshaping.


Adaptive estimation Adaptive reshaping Room impulse response 


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.School of Information Science and EngineeringShenyang Ligong UniversityShenyangChina
  2. 2.Institute for Signal ProcessingUniversity of LübeckLübeckGermany

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