Reference method for adjusting sound effects in karaoke system

[Home Theater Network HDAV.com.cn] At present, more and more karaoke system is applied to the home theater environment, from the simple OK machine to the current quasi-professional OK effect and power amplifier split, from The simple music and microphone and effect size adjustment to the sub-band adjustment of each frequency band and each effect on the independent effect, also shows that the OK effect of the home theater environment is getting more and more attention. The corresponding products are also becoming more and more specialized! How to make the karaoke scene nice and sing, in addition to the matching of karaoke equipment, it also needs to be adjusted for the scene, and most of these adjustments are done on the effects.

Today Xiaobian collected some problems and adjustment methods encountered when singing karaoke, for friends to refer to!

The first is that there are some problems encountered in the singing of Mike:

1. Reason: The bass energy is too strong;

Solution: Attenuation 110-160Hz;

2, the sound is thin, the sound is dry:

Reason: insufficient medium and low frequency energy;

Solution: Increase 250Hz;

3, singing tired:

Reason: The IF energy of the microphone is not enough;

Solution: Increase the 800Hz band;

4, the voice is imaginary, ear:

Reason: The intermediate frequency is too strong;

Solution: Attenuate IK-1.25KHz;

5, sound fried:

Reason: The medium and high frequency energy is too strong;

Solution: Attenuation 2K-4KHz;

6, the sound is harsh, strong metal:

Cause: The high frequency energy is too strong;

Solution: Attenuation 5KHz;

7, the voice is irritating:

Cause: The high frequency is not compliant;

Solution: Attenuation 8K-1OKHz;

8, the sound hairy:

Reason: Ultra high frequency energy is too strong;

Solution: Attenuate 12K-16KHz;

Problems with music playback:

1. The super low frequency sound pressure is not large, but the resonance sound is strong:

Cause: The ultra low frequency lower limit energy is too strong;

Solution: Greatly attenuate 50Hz

The following frequency bands;

2. Feel the lack of flexibility in the subwoofer:

Cause: The subwoofer is not coordinated;

Solution: Attenuate the frequency close to the lower limit

40Hz or 50Hz, raising the reference frequency band 80Hz;

3, the subwoofer is too soft, powerless:

Cause: The crossover point is set too low;

Solution: Increase the crossover point to 120Hz

Left and right, and raise the 100-125Hz band;

4, the voice is not clear enough:

Reason: The low frequency is too fat;

Solution: Attenuation 300-500Hz;

5, the sound layering is not good:

Reason: The intermediate frequency is too strong;

Solution: Wide range attenuation 800-1.6KHz;

6, the voice is not transparent:

Reason: insufficient medium and high frequency;

Solution: Mix the mixer's intermediate frequency to 3K;

7, the full-range speaker does not feel transparent:

Reason: The medium and high frequency is missing;

Solution: increase 3-5KHz;

8. Insufficient high frequency space:

Cause: The high frequency unit is not good for UHF;

Solution: Fully attenuate below IOK to

2KHz frequency band, then increase the overall gain;

9, feeling high, medium and low frequency disconnect:

Cause: The frequency band near the frequency is attenuated too much;

Solution: Improve the balance near the sub-frequency;

Finally, adjust in the home theater environment:

1, the placement of the OK speaker: the distance between the left and right speakers is calculated: take the indoor short wall - the length of the face is 0.618 times (the center is inevitable).

2, pure K box, the music in the middle, the height is slightly reduced, the bass adjustment is relatively full, so the music will not grab the frequency with the microphone, because the microphone is more than the middle part.

3, the microphone sound is greater than 20% of the music, highlighting the microphone sound, when debugging, you should use high-pitched, singing to debug, do not use the Pingyin "feed" two sentences, because the Pingyin vocals are fuller, then feel The sound quality of the microphone is good, but when K song, the tone is high, the sound is not full, and it feels thin.

4. After the microphone is added to the reverb, the sound is mixed; the reason: the low frequency of the reverberation sound is too much; the solution: the appropriate attenuation of the low frequency of the reverberation on the preamplifier;

5. After the microphone is added to the reverb effect, the sharpness will drop and the sound will not come out: Cause: The reverb sound robs the sound of the microphone; Solution: Reduce the volume of the reverb sound properly and increase the gain of the first sound of the microphone.

6, the combination of sensor microphone and accompaniment music is not good: reason: the effect pre-delay parameter is not correct; solution: reduce the effect pre-delay time.

More fresh and fun home theater information, please pay attention to home theater network http:// (WeChat: cnhifi), the country's most influential home theater audio player interactive media website.

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