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Audio frequency and hearing of the human ear
16K ～ 20KHz Frequency:
This frequency range actually does not hear the auditory organ of the human ear, since the highest frequency of ear hearing is 15.1 kHz. However, people can pass through the human body and skull, the skull will feel the 16 ~ 20KHz frequency of sound waves transmitted to the brain's auditory brain area, and thus feel the existence of this sound waves. This frequency affects the charm of the sound, color, emotional. If the frequency response range of the sound system does not reach this frequency range, then the charm of the sound will be lost; and if this frequency is too strong, it gives a feeling of the universe, an illusion, a mysterious Feeling, people have a sense of instability. Because most of these frequencies are phonemes of non-harmonic sound frequency, so it will produce an unstable feeling. This frequency is very small in the sound intensity, but it is important, is the expression part of the sound, is often overlooked by the part, and even some people simply do not feel it exists.
12K ～ 16KHz Frequency:
This is the high frequency of the human ear can hear the sound waves, is the most vocal part of the sound, is a number of high musical instruments and treble percussion instruments of high frequency overtones, such as cymbals, bells, tambourine, sand hammer, copper brush , Triangular iron and other percussion instruments of high-frequency overtones, can give a "golden light" feeling, a strong performance of the various musical instruments personality. If the frequency component is too strong, such as the exciter is too strong, the sound will produce "glitch" as sharp noise, harsh high-frequency noise, if the frequency component is too strong, the sound will lose color, loss of personality; This band should be given some appropriate attenuation.
10K ～ 12KHz Frequency:
This is the treble of the treble musical instruments, such as flute, oboe, trumpet, piccolo and other treble instruments of the metal sound is very strong. If this frequency is lacking, the tone will lose its luster and lose personality; if this frequency is too strong, it will produce a sharp, harsh feeling.
8K ～ 10KHz Frequency:
This frequency s sound is very obvious, affecting the clarity and transparency of the sound. If the frequency component is missing, the tone becomes flat; if the frequency component is too much, the tone becomes sharp.
6K ～ 8KHz Frequency:
This frequency affects the brightness of the sound, which is the ear hearing sensitive frequency, affecting the sound clarity. If this frequency component is missing, the tone will become dim; if this frequency component is too strong, the sound appears to be serious.
5K ～ 6KHz Frequency:
This frequency most affect the voice of the clarity, intelligibility. If this frequency component is insufficient, the sound appears to be vague; if this frequency component is too strong, the sound becomes sharp, easy to make people feel the sense of fatigue.
4K ～ 5KHz Frequency:
This frequency has an effect on the surface loudness of the instrument. If the frequency of this frequency is large, the loudness of the instrument will be increased; if this frequency intensity becomes smaller, will make people feel that the distance between the instrument and the human ear farther; if this frequency strength increased, It will make people feel the distance between the instrument and the human ear closer.
4KHz Frequency:
The penetration of this frequency is very strong. The resonant frequency of the human ear cavity is 1K ~ 4KHz so the human ear is also very sensitive to this frequency. If the empty frequency component is too small, the auditory ability will be worse, the voice appears to be blurred. If the frequency component is too strong, it will produce the feeling of cough, such as when the radio to receive radio frequency is not correct, the announcer often issued cough sound. In the case of
2K ～ 3KHz Frequency:
This frequency is the most sensitive band that affects the brightness of the sound. If the frequency is rich, the brightness of the sound will be enhanced. If this frequency is insufficient, the tone will become hazy. If this frequency Composition is too strong, the sound will appear dull, hard, not natural.
1K ～ 2KHz Frequency:
This frequency range transparent sense of a sense of smooth, strong sense of strong. If this frequency is lacking, the tone is loose and the sound is out of touch; if this frequency is too strong, the tone has a sense of jump.
800Hz Frequency:
This frequency range affects the intensity of the sound. If the frequency is full, the sound will appear strong; if this frequency is insufficient, the sound will appear to be loose, that is, 800Hz below the performance characteristics of outstanding performance, low frequency components on the obvious; and if this frequency is too much, it will produce larynx Sound sense. Everyone has a throat, everyone has a certain guttural, if the tone of the guttural material too much, it will lose the voice of the personality, loss of sound beauty. Therefore, the sound division to this frequency as "dangerous frequency", to be used with caution. 500Hz ~ 1KHz Frequency: This frequency is the pitch of the human voice frequency region, is an important frequency range. If this frequency is full, the vocal outline is clear, the overall sense is good; if this frequency is insufficient, the voice will produce a sense of contraction; if this frequency is too strong, the voice will produce a forward bulge feeling , So that the voice of an ear into the ears of the hearing experience. In the case of
300Hz ～ 500Hz Frequency:
This frequency is the main channel frequency of the speech. This frequency of full range, voice intensity. If this frequency is insufficient, the sound will appear empty, not solid; if this frequency is too strong, the tone will become monotonous, relatively low frequency components less, high frequency components are less, the voice will become like a phone In the sound of the same sound, it is very monotonous.
150Hz ～ 300Hz Frequency:
This frequency affects the intensity of the sound, especially the intensity of the male voice. This frequency is the low frequency pitch frequency of the male voice, and is also the pitch frequency of the chord in the tone. If the frequency component is too strong, the sound will become blunt and unnatural, and there is no characteristic. If the frequency component is too strong, the sound will become blunt and unnatural. In the case of
100Hz ～ 150Hz Frequency:
This frequency affects the fullness of the sound. If this frequency component is enhanced, the sound will become thin and pale; if this frequency component is too strong, the sound will appear turbid , The clarity of speech is worse.
60Hz ～ 100Hz:
This frequency affects the sound of the mixed feeling, is the bass of the pitch area. If this frequency is full, the sound will appear thick, thick mixed feeling strong. If this frequency is insufficient, the tone will become weak; and if this frequency is too strong, the sound will appear low frequency resonance sound, there is the feeling of roar.
20Hz ～ 60Hz Frequency:
This frequency affects the sense of space, because the pitch is mostly above this frequency. This frequency is the resonant frequency of the room or hall. If this frequency is sufficient, will make people feel a sense of exposure to the hall; if this frequency is missing, the sound will become empty; and if this frequency is too strong, will produce a buzzing low frequency Resonance of the sound, seriously affecting the voice of the clarity and intelligibility.