As all of you probably know, that the range of the audible frequencies’ spans from the 20 Hz to 20 kHz. Just like every device is different, every human ear is different, and the audio spectrum of every one of us is different. This means that not all of us hear the same sounds or all the sounds. Some of us will hear much more deeper or higher sounds than others, but, on average, we can all hear the sounds within the mentioned spectrum.
The frequencies below the 20 Hz are extremely deep. They are, in fact, so deep that they are hardly audible. Experts love to say that they are more felt than heard thanks to their great vibration amplitude. On the other hand, frequencies above the 20 kHz are so high that they can cause severe hearing problems as well as hearing loss. The high sounds are actually considered noise, or simply the nebulous sounds.
As far as 20 Hz – 20 kHz spectrum is concerned, we can even divide it into the various frequency bands that affect the sounds in different ways. The bands we are talking about are sub-bass, bass, mid-range, low mid-range, upper mid-range, highs, and lower treble.