Klang ultrasonic unidirectional loudspeakers
Klang ultrasonic unidirectional loudspeakers
- Use a frequency as a signal carrier and when it is interrupted that the audio arrives only to the point where the receiver is
Matias.Reccius at English Wikipedia [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/)]
The Klang
ultrasonic unidirectional loudspeakers (Cabezas, 2011; Sorrel, 2011) are a design proposed by Adam
Moller, they work at a frequency of 30 [kHz] (the audible range is from
20 [Hz] to 20 [kHz]), which Moller proposes is to use this frequency as a
signal carrier and when it is interrupted that the audio
arrives only to the point where the receiver is, that is, the receiver
can listen to music as loud as it wants without anyone else listening,
although these speakers are only a concept, this technology is already in use in some museums and libraries.
References:
Cabezas, S. (2011). "Con estos parlantes es como si el sonido estuviera sólo dentro de tu cabeza". en FayerWayer. Recuperado de https://www.fayerwayer.com/2011/01/con-estos-parlantes-es-como-si-el-sonido-estuviera-solo-dentro-de-tu-cabeza/
Sorrel, C. (2011). "Klang Ultrasonic Speakers for Your Ears Only". En WIRED. Recuperado de http://www.wired.com/2011/01/klang-ultrasonic-speakers-for-your-ears-only/
How to cite this article:
Nocetti, F.A. (2015). "Klang ultrasonic unidirectional loudspeakers". In NabbuBlog. Retrieved from http://nabbublog.blogspot.com/2015/03/klang-ultrasonic-unidirectional.html