it amplifies the sound actually, by strengthening the waves. the sound waves are converted into equivalent electrical waves and then it amplifies and later those electrical waves are converted the sound waves . the principle of electromagnetic induction is applied here.
a loud speaker and for no sound it is a loud speaker with a cross on it
Sound energy is given out by a loud speaker. This energy is produced by the vibration of the speaker cone, which creates variations in air pressure that we perceive as sound.
A sound that is perceived as twice as loud requires an increase in sound intensity of approximately 10 decibels. This doubling of perceived loudness corresponds to a tenfold increase in sound intensity.
All you need is an "ultrasonic" signal to come into it.
It could be for numerous reasons. The quality of the recording might be bad. Your speakers might not have enough power to play it as loud as you want. The speaker cones might be damaged. Many possible answers
Sound leaves the speaker in the form of a wave, through the air, and enters your year, where the eardrum picks up the vibrations of the wave and sends a signal to your brain which interprets the vibrations as sound.
The center speaker gives you nice loud mids but is not need for good sound with this Aiwa System. However, it is needed for the Dolby 5.1 Surround Sound.
An audio speaker is usually powered only by the audio signal that comes via the leads from an audio amplifier. The average power in an audio signal is usually about 1% of the peak power, and even with loud music the average power is only ¼ watt or less. But the amplifier must be designed to supply the peak audio power and amplifiers are usually rated at 25-50 watts.
is a speaker made to be heard and loud
You need at least two loudspeakers to produce a stereophonic sound. One speaker will play the left channel of audio, and the other speaker will play the right channel, creating a sense of directionality and depth in the sound.
A loudspeaker converts electrical energy into mechanical energy to produce sound waves. When an electrical signal is passed through the speaker's coil, it interacts with a magnet to create vibrations that move the speaker cone and produce sound.
The subwoofer is the actual speaker making the loud bass. The amplifier is what powers the subwoofer and makes it work how it does. It only uses the low frequencies from the audio source and amplifies it.