Beam the sound of music

By Sekhar
Published: Tuesday 15 May 2001

Engineers in Singapore and China have developed audio beams that will help reduce noise pollution due to high decibel sound. The audio beam can focus a narrow beam of sound, just like a beam of light. Only the person within the beam area can hear the sound," says Zhang Ming, the project's head researcher. The speaker uses ultrasound. The researchers hope to further develop the system to track a listener moving around a room.

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