Amplitude
The mission of BS ACOUSTIC is to tune you to the right wave with quality sound. Have you ever wondered how it originates and what its volume depends on?
Sound waves are characterized by several quantities and one of them is the amplitude. We denote it by the maximum value of a regularly changing quantity. The amplitude can be defined as the maximum range of vibrations or oscillations of the sound source measured from the equilibrium position.
We work with amplitude when listening to music. The more we increase the volume, the greater the amplitude and we can experience our favorite songs more intensely. Conversely, a smaller amplitude represents a quieter sound.
Sounds are divided into musical (tones) and non-musical (noise). Tones are created by regular and repeated oscillations. Noise, on the other hand, has irregular wavelengths and changes in amplitude.
The volume of the sound affects not only the amplitude but also the distance of the sound source. The closer the sound source is, the louder it sounds.
Sound amplitude
We simply define sound amplitude as the volume / intensity of sound. The volume of the sound depends on the strength of the vibrations through which it is propagated.
We perceive sounds as loud or quiet, and we use the unit of measure Bel to be able to compare their volume. In practice, however, the most commonly used decibel, which is basically ten times more detailed expression of Bel. As you can see in the picture, our audibility threshold starts at 0 dB. All sounds above 130 dB are painful for the human ear.
