Ultrasonic Directional Speaker

Description

How DS100 directional speakers work?

DS100 speakers generate directional audio in an accurate, fixed shape and direction with a precision similar to that of light. The audio is delivered to the targeted area with clarity and crucially does not add to any increase in ambient noise within nearby surroundings. The directional sound speakers work in a completely different way to conventional loudspeakers. Conventional speakers typically produce audible sound waves with a singular, moving electromagnetic cone and coil. Contrastingly, DS100 directional speakers generate ultrasound waves (high-frequency sound) modulated with audio signal and as the waves pass through air they demodulate and sound can be heard. Ultrasonic waves possess a shorter wavelength, resulting in a small divergence of a sound beam.

What sound control technologies do we use?

DS100 specialize in the manufacturing of directional speakers, also commonly known as parametric speakers, which function to emit a narrow beam of sound towards a targeted area and just steps away no sound can be heard.In order to create these unique speakers, the DS100 team of engineers utilize innovative adaptive sound control technologies, namely parametric array, a nonlinear transduction mechanism. A parametric array does not generate sound directly – it uses ultrasonic waves to reproduce sound. Ultrasonic waves modulated with an audio signal are generated by ultrasonic transducers. As they pass through air or encounter objects, they demodulate and sound can be heard.Diffraction of ultrasonic waves is much lower than sound waves because of their higher frequency. So, the ultrasonic waves, and the sound coming from the directional speaker, spread very little and are confined to a narrow beam that can reach tens of meters.