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KHẮC PHỤC TIẾNG HÚ TRONG HỆ THỐNG TĂNG ÂM SỬ DỤNG PHƯƠNG PHÁP DỊCH CHUYỂN TẦN SỐ

Today, the sound amplication system plays an important and useful role in human life.It is widely used in many places such as conference room, lecture hall, musical theater and recording studio as well as in telecommunication and mobile devices. However, there is a drawback of using this system. That is the existence of howling which can be known as the Larsen effect appearing in the system, when there is audio feedback back to the microphone. This phenomenon could reduce the sound quality and cause unpleasant to the listener.

Từ khóa: Sound amplication system, howlings, Larsen effect, frequency shifting Title: Prevention howling in the sound amplication system using frequency shifting method

8 p ovanketv4 16/11/2016 369 1

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