There are several devices that we use in our daily life that produce the sound such as a Radio, headphone, television, phone, intercom etc. but have you ever thought of taking a look at the science that is working behind all this process? Most of the people never think of focusing on such things because they think they are not supposed to think about such things but there are some people that are crazy to learn the science behind everything they use in their daily life.
This craze is the only thing that has brought you to this article. Today, we’re going to show you the way a speaker transmits the sound. All the devices that you use in your daily life such as headphone, computer, phone, television etc. have a speaker installed in them and that speaker is used to generate the sound that you hear.
The thing is that how a speaker converts the electromagnetic field to the sound that we actually hear. Well, today we’re going to take a look at this fact and it is going to very interesting.
Turning electricity into sound
The vibration of the things makes the sounds that we hear in our daily life. Most of the times, the sound is invisible but in some special cases, we can actually see it. If you thump a stick on the kettle-drum you’ll be able to see the movement of the skin of drum which generates the sound. The same science works behind the speakers.
There is a lightweight metal cone, paper, plastic or fabric at the front of a loudspeaker. The loudspeaker’s circular metal rim is attached to the cone. And the inner part of the cone is fixed to an iron coil. The coil is turned into a magnet or electromagnet when the loudspeaker is hooked up to the stereo. The electromagnet either repels or attracts the permanent magnet according to the flow of electricity in the cables.
The loudspeaker’s cone is moved with this process as the coil moves back and forward. The moving cone generates sounds in the air like the vibration of the drum skin back and forth. If you’re looking to take a deeper look at the science behind this process, you may take a look at MyGoldeni review.
Making sounds of different volume
The loudspeaker makes a louder sound when the bigger pulse of electricity is sent to the loudspeaker and similarly the smaller pulses of electricity make the quieter sounds. We have to create a vibration with lots of energy if we want to make a loud sound. The movement of bigger speakers is slightly different from the movement of smaller speakers.
Smaller speakers are good for producing lower frequencies. The back and forth movement of any speaker can produce different kinds of frequencies.