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J. Calder, "New Research on Low-Frequency Absorption Using Membranes," Paper 9886, (2017 October.). doi: J. Calder, "New Research on Low-Frequency Absorption Using Membranes," Paper 9886, (2017 October.). doi:
Abstract: Room modes are one of the greatest concerns when considering accurate sound recording and reproduction. Low-frequency (LF) absorbers are used to mitigate modes, however, most independent testing laboratories are only large enough to measure accurate absorption results above 160 Hz but not below. One lab is large enough to be accurate down to 40 Hz. A new LF absorber was designed to complement the capabilities of an original LF absorber. Summary: the type of absorber, and its location and orientation in a room, are all critical to LF absorber effectiveness. Without standardized laboratory absorption testing in a lab capable of accurately testing down to 40 Hz, it is difficult to state conclusively that low-frequency absorber products perform as claimed.

@article{calder2017new,
author={calder, john},
journal={journal of the audio engineering society},
title={new research on low-frequency absorption using membranes},
year={2017},
volume={},
number={},
pages={},
doi={},
month={october},} @article{calder2017new,
author={calder, john},
journal={journal of the audio engineering society},
title={new research on low-frequency absorption using membranes},
year={2017},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={room modes are one of the greatest concerns when considering accurate sound recording and reproduction. low-frequency (lf) absorbers are used to mitigate modes, however, most independent testing laboratories are only large enough to measure accurate absorption results above 160 hz but not below. one lab is large enough to be accurate down to 40 hz. a new lf absorber was designed to complement the capabilities of an original lf absorber. summary: the type of absorber, and its location and orientation in a room, are all critical to lf absorber effectiveness. without standardized laboratory absorption testing in a lab capable of accurately testing down to 40 hz, it is difficult to state conclusively that low-frequency absorber products perform as claimed.},}

TY - paper
TI - New Research on Low-Frequency Absorption Using Membranes
SP - EP -
AU - Calder, John
PY - 2017
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2017 TY - paper
TI - New Research on Low-Frequency Absorption Using Membranes
SP - EP -
AU - Calder, John
PY - 2017
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2017
AB - Room modes are one of the greatest concerns when considering accurate sound recording and reproduction. Low-frequency (LF) absorbers are used to mitigate modes, however, most independent testing laboratories are only large enough to measure accurate absorption results above 160 Hz but not below. One lab is large enough to be accurate down to 40 Hz. A new LF absorber was designed to complement the capabilities of an original LF absorber. Summary: the type of absorber, and its location and orientation in a room, are all critical to LF absorber effectiveness. Without standardized laboratory absorption testing in a lab capable of accurately testing down to 40 Hz, it is difficult to state conclusively that low-frequency absorber products perform as claimed.