Room impulse response shortening by channel shortening concepts

Markus Kallinger; Alfred Mertins

doi:10.1109/ACSSC.2005.1599885

Room impulse response shortening by channel shortening concepts

Markus Kallinger, Alfred Mertins

Institute of Signal Processing

University of Oldenburg

Abstract

This paper addresses the usability of channel shortening equalizers known from data transmission systems for the equalization of acoustic systems. In multicarrier systems, equalization filters are used to shorten the channel's effective length to the size of a cyclic prefix or the guard interval. In most data-transmission applications, the equalizer succeeds the channel. In acoustic systems, an equalizer is placed in front of a playback loudspeaker to generate a desired impulse response for the concatenation of the equalizer, a loudspeaker, a room impulse response, and a reference microphone. In this paper, we modify the channel shortening paradigm and show that shaping the desired impulse response to a shorter reverberation time is more appropriate for acoustical systems than exactly truncating it.

Original language	English
Title of host publication	Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005
Number of pages	5
Publisher	IEEE
Publication date	01.12.2005
Pages	898-902
Article number	1599885
ISBN (Print)	1-4244-0131-3
DOIs	https://doi.org/10.1109/ACSSC.2005.1599885
Publication status	Published - 01.12.2005
Event	39th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, United States Duration: 28.10.2005 → 01.11.2005 Conference number: 69283

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10.1109/ACSSC.2005.1599885

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title = "Room impulse response shortening by channel shortening concepts",

abstract = "This paper addresses the usability of channel shortening equalizers known from data transmission systems for the equalization of acoustic systems. In multicarrier systems, equalization filters are used to shorten the channel's effective length to the size of a cyclic prefix or the guard interval. In most data-transmission applications, the equalizer succeeds the channel. In acoustic systems, an equalizer is placed in front of a playback loudspeaker to generate a desired impulse response for the concatenation of the equalizer, a loudspeaker, a room impulse response, and a reference microphone. In this paper, we modify the channel shortening paradigm and show that shaping the desired impulse response to a shorter reverberation time is more appropriate for acoustical systems than exactly truncating it.",

author = "Markus Kallinger and Alfred Mertins",

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doi = "10.1109/ACSSC.2005.1599885",

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pages = "898--902",

booktitle = "Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005",

note = "39th Asilomar Conference on Signals, Systems and Computers ; Conference date: 28-10-2005 Through 01-11-2005",

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Kallinger, M & Mertins, A 2005, Room impulse response shortening by channel shortening concepts. in Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005., 1599885, Conference Record - Asilomar Conference on Signals, Systems and Computers, IEEE, pp. 898-902, 39th Asilomar Conference on Signals, Systems and Computers , Pacific Grove, California, United States, 28.10.05. https://doi.org/10.1109/ACSSC.2005.1599885

Room impulse response shortening by channel shortening concepts. / Kallinger, Markus; Mertins, Alfred.
Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. IEEE, 2005. p. 898-902 1599885 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

TY - GEN

T1 - Room impulse response shortening by channel shortening concepts

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AU - Mertins, Alfred

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N2 - This paper addresses the usability of channel shortening equalizers known from data transmission systems for the equalization of acoustic systems. In multicarrier systems, equalization filters are used to shorten the channel's effective length to the size of a cyclic prefix or the guard interval. In most data-transmission applications, the equalizer succeeds the channel. In acoustic systems, an equalizer is placed in front of a playback loudspeaker to generate a desired impulse response for the concatenation of the equalizer, a loudspeaker, a room impulse response, and a reference microphone. In this paper, we modify the channel shortening paradigm and show that shaping the desired impulse response to a shorter reverberation time is more appropriate for acoustical systems than exactly truncating it.

AB - This paper addresses the usability of channel shortening equalizers known from data transmission systems for the equalization of acoustic systems. In multicarrier systems, equalization filters are used to shorten the channel's effective length to the size of a cyclic prefix or the guard interval. In most data-transmission applications, the equalizer succeeds the channel. In acoustic systems, an equalizer is placed in front of a playback loudspeaker to generate a desired impulse response for the concatenation of the equalizer, a loudspeaker, a room impulse response, and a reference microphone. In this paper, we modify the channel shortening paradigm and show that shaping the desired impulse response to a shorter reverberation time is more appropriate for acoustical systems than exactly truncating it.

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BT - Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005

PB - IEEE

T2 - 39th Asilomar Conference on Signals, Systems and Computers

Y2 - 28 October 2005 through 1 November 2005

ER -

Room impulse response shortening by channel shortening concepts

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