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MI. C.. Heilemann, T. DiPassio, and MA. F.. Bocko, "Audio-Source Rendering on Flat-Panel Loudspeakers with Non-Uniform Boundary Conditions," Paper 10510, (2021 October.). doi: MI. C.. Heilemann, T. DiPassio, and MA. F.. Bocko, "Audio-Source Rendering on Flat-Panel Loudspeakers with Non-Uniform Boundary Conditions," Paper 10510, (2021 October.). doi:
Abstract: Devices from smartphones to televisions are beginning to employ dual purpose displays, where the display serves as both a video screen and a loudspeaker. In this paper we demonstrate a method to generate localized sound-radiating regions on a flat-panel display. An array of force actuators affixed to the back of the panel is driven by appropriately filtered audio signals so the total response of the panel due to the actuator array approximates a target spatial acceleration profile. The response of the panel to each actuator individually is initially measured via a laser vibrometer, and the required actuator filters for each source position are determined by an optimization procedure that minimizes the mean squared error between the reconstructed and targeted acceleration profiles. Since the single-actuator panel responses are determined empirically, the method does not require analytical or numerical models of the system’s modal response, and thus is well-suited to panels having the complex boundary conditions typical of television screens, mobile devices, and tablets. The method is demonstrated on two panels with differing boundary conditions. When integrated with display technology, the localized audio source rendering method may transform traditional displays into multimodal audio-visual interfaces by colocating localized audio sources and objects in the video stream.

@article{heilemann2021audio-source,
author={heilemann, michael c. and dipassio, tre and bocko, mark f.},
journal={journal of the audio engineering society},
title={audio-source rendering on flat-panel loudspeakers with non-uniform boundary conditions},
year={2021},
volume={},
number={},
pages={},
doi={},
month={october},} @article{heilemann2021audio-source,
author={heilemann, michael c. and dipassio, tre and bocko, mark f.},
journal={journal of the audio engineering society},
title={audio-source rendering on flat-panel loudspeakers with non-uniform boundary conditions},
year={2021},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={devices from smartphones to televisions are beginning to employ dual purpose displays, where the display serves as both a video screen and a loudspeaker. in this paper we demonstrate a method to generate localized sound-radiating regions on a flat-panel display. an array of force actuators affixed to the back of the panel is driven by appropriately filtered audio signals so the total response of the panel due to the actuator array approximates a target spatial acceleration profile. the response of the panel to each actuator individually is initially measured via a laser vibrometer, and the required actuator filters for each source position are determined by an optimization procedure that minimizes the mean squared error between the reconstructed and targeted acceleration profiles. since the single-actuator panel responses are determined empirically, the method does not require analytical or numerical models of the system’s modal response, and thus is well-suited to panels having the complex boundary conditions typical of television screens, mobile devices, and tablets. the method is demonstrated on two panels with differing boundary conditions. when integrated with display technology, the localized audio source rendering method may transform traditional displays into multimodal audio-visual interfaces by colocating localized audio sources and objects in the video stream.},}

TY - paper
TI - Audio-Source Rendering on Flat-Panel Loudspeakers with Non-Uniform Boundary Conditions
SP - EP -
AU - Heilemann, Michael C.
AU - DiPassio, Tre
AU - Bocko, Mark F.
PY - 2021
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2021 TY - paper
TI - Audio-Source Rendering on Flat-Panel Loudspeakers with Non-Uniform Boundary Conditions
SP - EP -
AU - Heilemann, Michael C.
AU - DiPassio, Tre
AU - Bocko, Mark F.
PY - 2021
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2021
AB - Devices from smartphones to televisions are beginning to employ dual purpose displays, where the display serves as both a video screen and a loudspeaker. In this paper we demonstrate a method to generate localized sound-radiating regions on a flat-panel display. An array of force actuators affixed to the back of the panel is driven by appropriately filtered audio signals so the total response of the panel due to the actuator array approximates a target spatial acceleration profile. The response of the panel to each actuator individually is initially measured via a laser vibrometer, and the required actuator filters for each source position are determined by an optimization procedure that minimizes the mean squared error between the reconstructed and targeted acceleration profiles. Since the single-actuator panel responses are determined empirically, the method does not require analytical or numerical models of the system’s modal response, and thus is well-suited to panels having the complex boundary conditions typical of television screens, mobile devices, and tablets. The method is demonstrated on two panels with differing boundary conditions. When integrated with display technology, the localized audio source rendering method may transform traditional displays into multimodal audio-visual interfaces by colocating localized audio sources and objects in the video stream.