ചെടിച്ചട്ടി കൊണ്ട് കോളാമ്പി mic set ഉണ്ടാക്കാം | How to make Megaphone at home | Horn speaker
Автор: Mr tech Electronics
Загружено: 2022-09-05
Просмотров: 5269
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What is megaphone?
A megaphone, speaking-trumpet, bullhorn, blowhorn, or loudhailer is usually a portable or hand-held, cone-shaped acoustic horn used to amplify a person's voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves radiate out the wide end. A megaphone increases the volume of sound by increasing the acoustic impedance seen by the vocal cords, matching the impedance of the vocal cords to the air, so that more sound power is radiated. It also serves to direct the sound waves in the direction the horn is pointing. It somewhat distorts the sound of the voice because the frequency response of the megaphone is greater at higher sound frequencies
how to make LM386 audio amplifer at home :
• simple ആയി ഒരു audio amplifier ഉണ്ടാക്കാം ...
condenser mic preamplifer circuit diagram: https://drive.google.com/file/d/1AET5...
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