AES E-Library

V. Adam, and S. Benz, "Correction of Crossover Phase Distortion Using Reversed Time All-Pass IIR Filter," Paper 7111, (2007 May.). doi: V. Adam, and S. Benz, "Correction of Crossover Phase Distortion Using Reversed Time All-Pass IIR Filter," Paper 7111, (2007 May.). doi:
Abstract: The purpose of this paper is to describe a correction implementation of group delay distortion arising from a two-way loudspeaker system crossover. Having determined an IIR all-pass filter having a group delay response corresponding to that of the system crossover to be corrected, we have validated under Matlab and implemented in DSP the time reversal solution proposed by S.A. Azizi,. S.R. Powell and P. M. Chau, enabling an IIR filter to be inversed, whilst retaining stability and causality. In addition to theory and calculation validation, we have also carried out preliminary listening tests, supporting the evaluation of timber modification, sound clarity and space localisation due to the group delay distortion correction.

@article{adam2007correction,
author={adam, veronique and benz, sebastien},
journal={journal of the audio engineering society},
title={correction of crossover phase distortion using reversed time all-pass iir filter},
year={2007},
volume={},
number={},
pages={},
doi={},
month={may},} @article{adam2007correction,
author={adam, veronique and benz, sebastien},
journal={journal of the audio engineering society},
title={correction of crossover phase distortion using reversed time all-pass iir filter},
year={2007},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={the purpose of this paper is to describe a correction implementation of group delay distortion arising from a two-way loudspeaker system crossover. having determined an iir all-pass filter having a group delay response corresponding to that of the system crossover to be corrected, we have validated under matlab and implemented in dsp the time reversal solution proposed by s.a. azizi,. s.r. powell and p. m. chau, enabling an iir filter to be inversed, whilst retaining stability and causality. in addition to theory and calculation validation, we have also carried out preliminary listening tests, supporting the evaluation of timber modification, sound clarity and space localisation due to the group delay distortion correction.},}

TY - paper
TI - Correction of Crossover Phase Distortion Using Reversed Time All-Pass IIR Filter
SP - EP -
AU - Adam, Veronique
AU - Benz, Sebastien
PY - 2007
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2007 TY - paper
TI - Correction of Crossover Phase Distortion Using Reversed Time All-Pass IIR Filter
SP - EP -
AU - Adam, Veronique
AU - Benz, Sebastien
PY - 2007
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2007
AB - The purpose of this paper is to describe a correction implementation of group delay distortion arising from a two-way loudspeaker system crossover. Having determined an IIR all-pass filter having a group delay response corresponding to that of the system crossover to be corrected, we have validated under Matlab and implemented in DSP the time reversal solution proposed by S.A. Azizi,. S.R. Powell and P. M. Chau, enabling an IIR filter to be inversed, whilst retaining stability and causality. In addition to theory and calculation validation, we have also carried out preliminary listening tests, supporting the evaluation of timber modification, sound clarity and space localisation due to the group delay distortion correction.