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Common problems and solutions for professional audio mixer
Vocal part
1, microphone dry, singing tired:
Reason: if the energy of the microphone is not enough;
Solution: enhance 800Hz band;
2, sound thin, or sound dry:
Reason: lack of medium and low frequency energy;
Solution: improve 250Hz;
3, the voice is not clear enough:
Reason: medium and low frequency is too fat;
Solution: attenuation 300-500Hz;
4, the voice is not transparent:
Reason: lack of medium and high frequency;
Solution: 3K appropriately upgraded;
5, the sound hit the ear:
Reason: if the intermediate frequency is too strong;
Solution: attenuation IK-1.25KHz;
6, the sound is harsh:
Reason: too high frequency energy;
Solution: attenuation 6KHz;
7, microphone sound is too hard:
Reason: in the right proportion of low frequency and high frequency;
Solution: 500-630Hz attenuation, attenuation of 1.6K-2.5KHz;
8, the microphone to add reverberation, sound mixing;
Reason: low frequency reverberation;
Solution: the appropriate low-frequency reverberation decay;
9, after treatment with an excitation microphone, sound scared, thorn;
Reason: the incentive amount is too large, high frequency excitation;
Solution: reduce the incentive amount, reduce the excitation frequency;
10, microphone sound thin, flat;
Reason: medium low frequency deficiency;
Solution: balanced to 300Hz to enhance or improve 250~300Hz equalizer;
11, join the microphone reverb, articulation, singing tired;
Reason: the long tail reverberation;
Solution: to speed up the final reverberation decay time, voice to stop after half to 1 shot stop reverberation;
12, feel the microphone and music combination is not good:
The reason: ①the microphone and music of the right size; ②pre delay parameters the effect is not correct;
Solution: ①adjust the microphone and music in the proportion of 6:4;
②reducing the pre delay time of the effector;
Music part
1, bass hard:
Reason: Super Bass upper limit energy is too strong;
Solution: attenuation 125-160Hz;
2, bass scattered:
Reason: the lower limit energy of the low-frequency is too large;
Solution: increase the subwoofer lower limit frequency;
3, bass mixing:
Reason: low frequency center frequency energy is too strong
Solution: attenuation 60-80Hz;
4, there is a sense of irritability:
Reason: high frequency is not compliant;
Solution: attenuation 8K-1OKHz;
5, sound scared:
Reason: ultra high frequency energy is too strong;
Solution: attenuation 12K-16KHz;
6, ultra low frequency sound pressure is not big, but the resonance sound intensity:
Reason: ultra low frequency lower limit energy is too strong;
Solution: attenuation of 50Hz band;
7, system pressure limit device, pressure limiting device to start work, bass becomes loose;
Reason: the start-up time of the pressure limiter is too fast;
Solution: slow down pressure limiter start time;
8 in music, plus incentive after bass hair mixed feeling, mast;
Reason: the incentive amount is too large, low frequency excitation;
Solution: reduce the incentive amount, improve the excitation frequency;
9, the sound hierarchy is not good:
Reason: if the intermediate frequency is too strong;
Solution: wide range attenuation 800-1.6KHz;
10, full frequency speaker feel impermeable:
Reason: lack of medium and high frequency;
Solution: upgrade 3. 5KHz;
11, high frequency space sense is insufficient:
Reason: the high frequency unit of ultra high frequency characteristics are bad;
Solution: the overall attenuation of IOK to 2KHz frequency band, and then improve the overall gain;
12, feel high, medium and low frequency disjunction:
Reason: the frequency band attenuation near too much;
Solution: to enhance the frequency near equilibrium, increase the degree of integration;
The female voice 1.6-3.6 Hz affects the brightness of the timbre. It is suggested that the frequency of this paragraph can be used with the right and vivid tone
Male voice 150-600 Hz affect the intensity of singing, enhance the frequency of this band can make the vocal resonance feeling strong, enhance the intensity
Voice 800 Hz is dangerous too will make the sound frequency, enhance hard, morose
64-261 Hz will enhance hoarse sound is improved
Girl with 64-315 Hz 1-4KHz can improve the noise attenuation with noise elimination of female (narrow vocal sound)
600-800 Hz will make heavy attenuation guttural sound improved
A heavy attenuation of 60-260 Hz to enhance the -2.4KHz can improve the timbre
6 KHz high public dental severe dental
4 KHz is too high will produce cough sound serious phenomenon (radio frequency deviation tone)
1. The adjustment of pre delay: refers to the time interval between the early reflection sound and the direct sound, the pre extension time is different in different sound field. When the time delay of the effect device is increased a little larger, it can obtain large space, wider and open effect, such as hall effect. Of course, can not be too long, otherwise it will affect the clarity of the sound will be. The adjustment time is generally from 30ms to 70ms.
2.The reverberation time adjustment reverberation time is refers to in a sound field, after one kind of sound stops sounding, the sound pressure level reduces the time which the 60dB needs. The reverberation time length and the size of the sound volume, generally speaking, the sound volume is larger, the greater the reverberation time; sound absorption coefficient and decoration materials, decoration items used in a sound field, the sound absorption coefficient is high, the sound energy absorbed by the greater the reverberation time is shorter. Now the digital effect device can be very convenient to adjust the reverberation time, usually normal performance adjustment between 1.8s-2.4s.
The ratio of 3. The direct sound and reverberation sound: this ratio in 100%, up to 50% sound effect; direct sound and sound effects to each half; 0% is the direct sound, then the effect is actually not the effect of the output. This ratio is usually more appropriate adjustment in 85%-97%.