AES E-Library

J. Cadavid, and A. Novak, "Practical Problems in Building Parametric Loudspeakers with Ultrasonic Piezoelectric Emitters," Paper 10145, (2019 March.). doi: J. Cadavid, and A. Novak, "Practical Problems in Building Parametric Loudspeakers with Ultrasonic Piezoelectric Emitters," Paper 10145, (2019 March.). doi:
Abstract: In this paper we deal with some practical issues that one can encounter when building a parametric loudspeaker with ultrasonic piezoelectric emitters. We measured several of those transducers (with resonance frequency 40 kHz) available on the market, observing a strong nonlinear behavior of many of them. We also tested a hundred of piezoelectric emitters of the same series and studied the influence of the standard deviation of the resonance frequency and the sensitivity on the performance of the parametric loudspeaker. We conclude that, when constructing a parametric loudspeaker with low-cost piezoelectric emitters, the individual behavior of each of them should be considered. This allows to minimize the effect of their differences and, thus, improve the quality of the sound generated.

@article{cadavid2019practical,
author={cadavid, jose and novak, antonin},
journal={journal of the audio engineering society},
title={practical problems in building parametric loudspeakers with ultrasonic piezoelectric emitters},
year={2019},
volume={},
number={},
pages={},
doi={},
month={march},} @article{cadavid2019practical,
author={cadavid, jose and novak, antonin},
journal={journal of the audio engineering society},
title={practical problems in building parametric loudspeakers with ultrasonic piezoelectric emitters},
year={2019},
volume={},
number={},
pages={},
doi={},
month={march},
abstract={in this paper we deal with some practical issues that one can encounter when building a parametric loudspeaker with ultrasonic piezoelectric emitters. we measured several of those transducers (with resonance frequency 40 khz) available on the market, observing a strong nonlinear behavior of many of them. we also tested a hundred of piezoelectric emitters of the same series and studied the influence of the standard deviation of the resonance frequency and the sensitivity on the performance of the parametric loudspeaker. we conclude that, when constructing a parametric loudspeaker with low-cost piezoelectric emitters, the individual behavior of each of them should be considered. this allows to minimize the effect of their differences and, thus, improve the quality of the sound generated.},}

TY - paper
TI - Practical Problems in Building Parametric Loudspeakers with Ultrasonic Piezoelectric Emitters
SP - EP -
AU - Cadavid, Jose
AU - Novak, Antonin
PY - 2019
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - March 2019 TY - paper
TI - Practical Problems in Building Parametric Loudspeakers with Ultrasonic Piezoelectric Emitters
SP - EP -
AU - Cadavid, Jose
AU - Novak, Antonin
PY - 2019
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - March 2019
AB - In this paper we deal with some practical issues that one can encounter when building a parametric loudspeaker with ultrasonic piezoelectric emitters. We measured several of those transducers (with resonance frequency 40 kHz) available on the market, observing a strong nonlinear behavior of many of them. We also tested a hundred of piezoelectric emitters of the same series and studied the influence of the standard deviation of the resonance frequency and the sensitivity on the performance of the parametric loudspeaker. We conclude that, when constructing a parametric loudspeaker with low-cost piezoelectric emitters, the individual behavior of each of them should be considered. This allows to minimize the effect of their differences and, thus, improve the quality of the sound generated.