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A Comparison of HyperSound and Conventional Loudspeaker Transmission Characteristics in an Anechoic Environment
Audiology Online (2016)
  • Shaum P. Bhagat, University of Memphis
  • Anusha Yellamsetty, University of Memphis
  • Brian Taylor
Abstract
There are numerous listener benefits when listening to directional sound sources, including perceived improvements in the quality and clarity of sound. The HyperSound® Audio System uses ultrasonic technology to create sound in the air. HyperSound transmits a narrow beam of sound, which focuses an incident beam of sound in a direct path to the listener, unlike conventional audio speakers.  Recently, HyperSound became commercially available as a home audio device. In this study, the sound transmission characteristics of the HyperSound emitters were compared with conventional loudspeakers in an anechoic chamber. Designed to significantly diminish sound wave reflections in order to simulate a free field environment, the anechoic chamber provides an optimal environment to evaluate sound transmission characteristics. Subjects were placed in the path of the HyperSound narrow beam inside the anechoic chamber, and a sample of speech was projected from the HyperSound emitters. The same sample of speech was then projected from the conventional loudspeakers, with the subjects placed in the same positions. Comparisons were made of probe microphone measurements near the tympanic membrane of the subjects for speech samples projected by the HyperSound emitters and by the conventional loudspeakers.
Publication Date
November 7, 2016
Citation Information
Shaum P. Bhagat, Anusha Yellamsetty and Brian Taylor. "A Comparison of HyperSound and Conventional Loudspeaker Transmission Characteristics in an Anechoic Environment" Audiology Online (2016)
Available at: http://works.bepress.com/shaum-bhagat/79/