Weak current College】 【Equalizer parameters and debug in Visual FoxPro.

1, equalizer to adjust the method:
Subwoofer: 20Hz-40Hz, appropriate sound strong. Control of Thunder, bass drum, organ and bass sound. Excessive lifting will make music become cloudy.

Bass: 40Hz-150Hz, is part of the basis of sound, its energy accounted for the entire audio energy of 70%, is the performance of the musical style of important ingredients.
Where appropriate, the bass sound relaxation properly, when you full soft enough, sound thin, excessive lifting 150Hz will make the sound from a dull, luminance drops, nasal sound enhancement.

Bass: 150Hz-500Hz, is part of the structure of the voice, the voice at this location, is low, the sound of singing will be inundated with music, sound, soft but unable to find the right upgrade is thick and strong, increasing the intensity and loudness of the sound. When upgrading over the bass becomes stiff, excessive lifting 300Hz Department 3-6dB, if coupled with reverb, it will seriously affect the clarity of the sound.

Baritone: 500Hz-2KHz, contains most of the musical instruments of low harmonic and overtone, Xiaojun drum and percussion instruments is the feature code. Appropriate sound thorough bright, insufficient sound obscure. Excessive lifting will produce similar phone voice.

Treble: 2KHz-5KHz is string feature codes (La musical bow and string of friction and noise, plucking the strings of your fingers touch the music sounds a). Insufficient sound penetrating power drops, too strong when the masking language syllable recognition.

Treble: 7KHz-8KHz is the frequency of the sound level. Excessive increase makes the Piccolo, flute sound, language pronunciation of teeth and timbre nervous aggravation.

Extreme treble: 8KHz-10KHz

Appropriate, the recorder triangle and a sense of three-dimensional metal penetration rate is high, the rhythm of the sand clock. Excessive lifting will make the sound is natural and easy to burn high frequency units.

2, balance, pleasant voice should be:
150Hz following (bass) should be plump, softness and elasticity;
150Hz-500Hz (bass) should be thick and strong 100 not cloudy;
500Hz-5KHz (treble) should be thorough but not stiff bright;
5KHz above (treble) should be fine, smooth and not shrill.
The frequency response is flat: sound natural fullness and flexible, clear and pleasant garden level. Frequency response more peak and Valley: voice rough harsh cloudy, treble, no nervous sense of depth-prone feedback whistling sound reinforcement.

3. frequency of experiments features:
30 ~ 60Hz boring if there is no considerable loudness, the human ear is very difficult to feel.
60 ~ 100Hz heavy 80Hz nearby can produce a very strong sense of "heavy" effect, loudness is high also does not give the comfortable feeling, can give a strong boost.
100 ~ 200Hz plump
200 ~ 500Hz efforts easily cause mental buzzing off.
500 ~ 1KHz clear near as upgrade 800Hz 10dB, will obviously have a noisy, narrow sense.
1K ~ 2KHz translucent 2800Kz near bright sense of relationship with Max.
2K ~ din't 4Kz sharp, sharp 6800Hz formation.
4K ~ 8Kz crisp 3400Hz auditory fatigue caused by susceptible.
8K ~ 16Kz slender slim clear 7.5KHz pitch ".

P.S.
1.20 ~ 40 the band sound of the majority feeling is soft bass instead of powerful, can see through the test. Look for the band to drum lifting will have any effect.
2, 40-150 is a sound basis for sure, but never less than 70 per cent, and the voice of the nasal nor in this band, probably in the 250 or so.
3, 150 to 500 this frequency band, was a time when you want to handle very carefully by the band, must not rely on the lifting of this band for the human voice. A little carelessness will have a mission.
4. promotion of the "excessive 300Hz Department 3-6dB, if coupled with reverb, it will seriously affect the clarity of the sound. "It should be said that as long as the low frequency part with reverb, affects the clarity of sound. Of course, now the mix skills, this rule is not very important. Because we often in Europe, and RTHK Studios saw them to drum and bass plus ultra short reverb.

None of the above is a reference value, in fact or in accordance with the production of the actual circumstances! hope to provide for everyone to refer to the help!