Audio Spotlight
Direct your sound to your audience with amazing precision.
Using sound with vision improves retention rates by up to 60%, but how do you get round the issue of noise pollution to the surrounding area? By using Audio spotlight - which concentrates the sound just as a spotlight does, so only those in the "beam" can hear your message. Use it outside your shop window, or under your billboard. People can hear, but can't always know where the sound is coming from. Creative opportunities
How it works:The directivity (narrowness) of any wave producing source depends on the size of the source, compared to the wavelengths it generates. Audible sound has wavelengths ranging from a few inches to several feet, and because these wavelengths are comparable to the size of most loudspeakers, sound generally propagates omnidirectionally. Only by creating a sound source much larger than the wavelengths it's producing can a narrow beam be created.
Clearly, having loudspeakers twenty meters wide is not very useful.
therefore ...
to make a narrow beam of sound from a small acoustic source, we instead generate only ultrasound.
The ultrasound, whose wavelengths are only a few millimeters long, are much smaller than the source, and consequently travel in an extremely narrow beam.
Of course, the ultrasound, which contains frequencies far outside our range of hearing, is completely inaudible. But as the ultrasonic beam travels through the air, the inherent properties of the air cause the ultrasound to distort (change shape) in a predictable way. This distortion gives rise to frequency components in the audible bandwidth, which can be accurately predicted, and therefore precisely controlled. By generating the correct ultrasonic signal, we can create, within the air itself, essentially any sound desired.
Note that the source of sound is not the physical device you see, but the invisible beam of ultrasound, which can be many meters long. This new sound source, while invisible, is very large compared to the audio wavelengths it's generating. So the resulting audio is now extremely directional, just like a beam of light.
If you're offering a special offer to customers and they might miss looking at your window, why not tell them to look in an easy non obtrusive way, by talking to them as they pass. Even better, why not combine this with rear projection film on the shop window and ensure everyone looks and listens to your message.
By combining an IR sensor with your spotlight, you can trigger audio to indivual people as they approach your building or advertisement. Target them with specific messages or contact their mobile phones via Bluetooth technology to allow audio or video downloads of your product.
In areas where headsets have previosuly been needed, such as museums or exhibitions, why not use multiple audio spotlights, so that customers can hear naturally about the piece without disturbing others around them.
The possibilities are endless! See more in the Audio Spotlight pdf.