Measurements and Simulations of Engineered Ultrasound Loudspeak

• Autorzy: Bratoszewski P. , Cichowski J. , Czyżewski A.

Identyfikatory

DOI

10.12921/cmst.2015.21.03.006

• Języki publikacji: EN

Abstrakty

EN

Simulation and measurement results of the sound emitted from an ultrasound custom-made system with high spatial directivity are presented. The proposed system is using modulated ultrasound waves which demodulate in nonlinear medium resulting in audible sound. The system is aimed at enhancing the users’ personal audio space, therefore the measurements are performed using the Head and Torso Simulator which provides realistic reproduction of the human auditory system. Based on the measurements of the sound emitted from the two parametric arrays of ultrasonic transducers the directivity of the proposed system and the interaural crosstalk characteristics are determined. Application of the system concerns creating a personal audio space for users of mobile platforms, such as notebooks, and applying 3D audio algorithms without the need of using headphones.

Słowa kluczowe

EN

sound from ultrasound; parametric array; interaural crosstalk

• Wydawca: Institute of Bioorganic Chemistry Scientific Publishers OWN, Polish Academy of Sciences
• Czasopismo: Computational Methods in Science and Technology
• Rocznik: 2015
• Tom: Vol. 21, No. 3
• Strony: 151--160
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Bratoszewski P.

• Multimedia Systems Department (MSD), Gdansk University of Technology (GUT) Faculty of Electronics, Telecommunications and Informatics Gdańsk, Poland

autor

Cichowski J.

• Multimedia Systems Department (MSD), Gdansk University of Technology (GUT) Faculty of Electronics, Telecommunications and Informatics Gdańsk, Poland

autor

Czyżewski A.

• Multimedia Systems Department (MSD), Gdansk University of Technology (GUT) Faculty of Electronics, Telecommunications and Informatics Gdańsk, Poland

Bibliografia

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