How Does A Loudspeaker Produce Sound?
A loudspeaker is made up f several parts but the process of transforming electrical energy into sound energy is very simple. The electrical signals, which have already been converted from the binary code, are translated into vibrations that our ears can hear. Firstly, a driver generate sound waves by making the cone (the diaphragm) vibrate, the narrow end of the the cone is joined to the voice coil. Because of the change of voltage from the electrical signals from the amplifier, the voice coil generates its own electromagnetic field. The amplifier causes the electric pulses change from negative to positive charges significantly, leading to a clearer and louder sound at the end. This electromagnetic field then connects with the magnet and produces a force to push and ull the coil back and forth. When the coil moves, so does the cone, which helps the vibrations of the air in front of the speaker, therefore producing sound waves.
How Do Vibrations Create Different Frequencies And Amplitudes
This diagram shows the differences that Frequency and Amplitude have on sound.
When the sound you hear has a high frequency, it suggests that the air particles are vibrating faster, which produces a higher pitch. The lower the pitch, the slower the vibrations and the lower the frequency. An increase in volume means an increase in the amplitude which means that the air articles are vibrating with more force. On the contrary the lesser the force of vibration, the quieter the sound and the smaller the amplitude.
When the sound you hear has a high frequency, it suggests that the air particles are vibrating faster, which produces a higher pitch. The lower the pitch, the slower the vibrations and the lower the frequency. An increase in volume means an increase in the amplitude which means that the air articles are vibrating with more force. On the contrary the lesser the force of vibration, the quieter the sound and the smaller the amplitude.
How Do Sound Waves Travel From The Speaker To Your Ear
Sound is a form of energy that is made by vibrations. When the loud speaker vibrate,sound waves bump into air particles. When the air particles bump into each other, the sound waves are still vibrating and roam through the air to the pinna (outer ear). Sound waves are just the particles that vibrate and transfer on the different vibration of sound. The speaker makes the air vibrate with the specification of the track, and the air particles transfer the vibrations (like people jostling) until it reaches your ear. However, because the air particles are far away, it takes longer for the sound waves to reach your ear than in a solid; as the particles are so close t each other they pass on the vibrations faster.