Often as consumers we come across these controls in our audio systems at home and cars. Today, I am attempting to explain what these controls do to your sound experience. I will try my best to explain this in a simple language for the benefit of non-technical readers.
Human hearing responds to frequency in the range of 20Hz – 20KHz. This frequency spectrum is further divided into seven different bands and 10 octaves. Each of these bands are associated with different tone or pitch of sound. In layman terminology, a thicker tone of sound lies in the lower frequency band while a thinner tone of sound lies in the higher frequency spectrum.
Instruments such as drums, tabla, bass guitar, cello supply the bass in your music. With no clear line between the bands, roughly the bass affects the frequency in the range of 20Hz – 300Hz. Vocals are prominent in the mid range frequency which roughly is between 300Hz – 4Khz. Human hearing is very sensitive in this range and a small change in this can affect the sound quality to a larger extent, for the good or the bad. Instruments such as violin, harp, cymbal contribute to the treble portion of your music above 4Khz.