Narrow Beam Speakers

These small ultrasonic transducers are capable of producing sound at high frequencies which lead to a narrow beam of sound wave produced by devices.

Narrow beam speakers.

The audio beam created by acouspade can cut through noisy environments and deliver a headphone like experience for the listener. Focusonics is a directional speaker that focuses and constrains sound to a narrow beam for tens of metres. Now think about the last bullhorn you heard. The audio spotlight is a revolutionary new audio technology that creates sound in a narrow beam just like light.

It surely sounded bad partly because bullhorns are designed to emit sound in a narrow beam. The long range acoustic device lrad was developed by american technology corporation now genasys and is a popular crowd control tool used by government agencies law enforcement and marine companies worldwide. They are only heard by those standing in front of the. Unlike low frequency soundwaves mid to high frequency sound can be focused almost like a laser beam.

Audio geeks refer to a speaker with narrow dispersion as beamy think about the last hi fi speaker you heard. Directional speakers used an array of piezoelectric ultrasonic transducers to produce a sound beam which points to specific direction like a laser beam. A focused speaker is a device that generates mid to high frequency audio in a narrow beam of soundwaves. These waves travel at long distances but are loudest at the center.

The 175 speaker that lets you direct sound like a laser beam by sarah kessler 2012 03 22 21 50 14 utc you can already buy a special kind of loudspeaker that directs sound with the precision a. If you then switch to a loudspeaker with a narrow beam width such as that shown in the directivity plot in figure 7 the beam width is the vertical thickness of the shape in the plot note that it s wide in the low frequencies and narrowest at 10 000 hz you don t get much energy reflected off the side walls of the listening room. The acouspade directional speaker can deliver a narrow beam of sound to a desired area while preserving silence around it or allowing the co existence of different sounds in the same space without mixing or interfering. In the beam the listener is immersed in music or speech while just steps away no sound can be heard.

The lrad sound is an uncomfortable audible deterrent tone that travels very long distances within a narrow beam of focused soundwaves. It probably sounded pretty good in part because most of today s speakers have decent dispersion.