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C. Hughes, "Loudspeaker Directivity Improvement Using Low Pass and All Pass Filters," Paper 7536, (2008 October.). doi: C. Hughes, "Loudspeaker Directivity Improvement Using Low Pass and All Pass Filters," Paper 7536, (2008 October.). doi:
Abstract: The response of loudspeaker systems employing multiple drivers within the same pass band is often less than ideal. This is due to the physical separation of the drivers and their lack of proper acoustical coupling within the higher frequency region of their use. The resultant comb filtering is sometimes addressed by applying a low pass filter to one or more of the drivers within the pass band. This can cause asymmetries in the directivity response of the loudspeaker system. A method is presented to greatly minimize these asymmetries through the use of low pass and all pass filters. This method is also applicable as a means to extend the directivity control of a loudspeaker system to lower frequencies.

@article{hughes2008loudspeaker,
author={hughes, charles},
journal={journal of the audio engineering society},
title={loudspeaker directivity improvement using low pass and all pass filters},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},} @article{hughes2008loudspeaker,
author={hughes, charles},
journal={journal of the audio engineering society},
title={loudspeaker directivity improvement using low pass and all pass filters},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={the response of loudspeaker systems employing multiple drivers within the same pass band is often less than ideal. this is due to the physical separation of the drivers and their lack of proper acoustical coupling within the higher frequency region of their use. the resultant comb filtering is sometimes addressed by applying a low pass filter to one or more of the drivers within the pass band. this can cause asymmetries in the directivity response of the loudspeaker system. a method is presented to greatly minimize these asymmetries through the use of low pass and all pass filters. this method is also applicable as a means to extend the directivity control of a loudspeaker system to lower frequencies.},}

TY - paper
TI - Loudspeaker Directivity Improvement Using Low Pass and All Pass Filters
SP - EP -
AU - Hughes, Charles
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008 TY - paper
TI - Loudspeaker Directivity Improvement Using Low Pass and All Pass Filters
SP - EP -
AU - Hughes, Charles
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008
AB - The response of loudspeaker systems employing multiple drivers within the same pass band is often less than ideal. This is due to the physical separation of the drivers and their lack of proper acoustical coupling within the higher frequency region of their use. The resultant comb filtering is sometimes addressed by applying a low pass filter to one or more of the drivers within the pass band. This can cause asymmetries in the directivity response of the loudspeaker system. A method is presented to greatly minimize these asymmetries through the use of low pass and all pass filters. This method is also applicable as a means to extend the directivity control of a loudspeaker system to lower frequencies.