Sound high

Sound high(It is like this) with, soundFundamentalIt is thing.

Fundamental, personHearingDepending upon, when in the frequency component of sound it has become "the basis", with thing of the frequency which is recognized, usually it is lowest, it is the component where the sound pressure is largest.

From the sound where the frequency component is a plural (sound of natural world and musical instrument entirely so is), the person how doing, does not understand clearly whether fundamental is felt. Many people usually listening times when it exceeds is as a phone, a kind of sound which is felt "chord of two sounds" and with the relation of music front and back. In other words it means that also the element of memory participates in sound high (fundamental) acknowledgment.

In addition, with acoustic psychology the phenomenon, missing fundamental is known. This, when greatest common divisor exists in frequency of the plural components which form sound, (for example when the pure tone component of 2000Hz and 1800Hz is heard simultaneously, the sound of 200Hz is felt) is to hear the sound of that frequency which is not really included. As for this it is not peripheral organization the inner ear and the like and, the theory that is powerful it is done in the auditory adrenal cortex of cerebrum. This way, as for "sound high (fundamental)" acknowledgment, higher-order also the cerebrum uses it is presumed that it is processing.

As, the sound whose frequency is high "high" sound and the bass frequency "low" sound, what it applies physical unevenness and sets and expresses is common to many languages, (English:High-low and German:Hoch-tief= it is deep). to be proportionate to cycle ratio almost, which difference of pitch of sound of difference and 880Hz and 1760Hz of pitch of sound 2 of 440Hz and 880Hz as for 1:Because 2 is, when it is the same difference, is recognized (both this example octave).