source:Industry News release time:2022-10-18 Hits: Popular:Brand bar audio wholesale
1. Microphone and speaker are used at the same time;
2. The sound played by the stereo can be transmitted to the microphone through space;
3. The sound energy from the speaker is large enough, and the pickup sensitivity of the microphone is high enough.
Unnegligible howling hazard
Once howling occurs, it will cause that the volume of the microphone channel cannot be increased. The howling will be very serious after the volume is increased, which will have a bad impact on the live performance. When the critical point of howling is reached, the sound will ring when the microphone is turned on. The sound will have a reverberation sense, which will damage the sound quality; In severe cases, the speaker or power amplifier will be burnt due to strong signal. It is not uncommon to burn the tweeter unit of the speaker due to howling, because in the howling state, strong signals will cause clipping (top cutting) distortion of the power amplifier and generate a large number of high-frequency harmonics. If the tweeter unit cannot withstand such strong high-frequency signals, the voice coil will be burned; In addition, in the howling state, if the output of the power amplifier is overloaded, it may also be burned.
How to restrain howling?
Whistling is a special acoustic problem of sound reinforcement system, which cannot be completely eliminated. In practice, audio experts have summarized many methods to suppress the squeal of the audio system. By taking effective measures and using some electroacoustic equipment, the aim of suppressing, reducing and eliminating the squeal is achieved. The idea is to avoid the three conditions of simultaneous squeal of the audio system.
1. Make the sound of the speaker difficult to transmit to the microphone.
a. Keep the microphone away from the speaker.
b. Decrease the volume of the microphone. If the microphone volume is too high, the probability of ringing will increase. Reduce the volume in time to avoid howling. another
In addition, if you want to hold or wear a microphone through the speaker, you should also pay attention to controlling the volume, otherwise you will cause serious howling due to too close distance.
c. Make rational use of the directional characteristics of speakers and microphones
Both the microphone and the speaker are directional. If the microphone is not used in the radiation area of the speaker, the sound of the speaker will not be easily transmitted to the microphone; Similarly, if the speaker is not in the pickup area of the microphone, it is difficult for the microphone to pick up the sound of the speaker. Therefore, by properly adjusting the angle of the speaker, making it avoid the playback area of the speaker when using the microphone, or making the sound radiation area of the speaker do not overlap with the use area of the microphone, you can suppress whistling.
Popular recommendation
A2 Dalian Bar Audio Vendor
2021-07-26Minibass 212 Bar bar sound Merchant
2021-06-09F55 Bar speaker company
2021-07-16BR132A Bar speaker wholesale
2021-07-14F1201 School audio Vendor
2021-07-16Resolution 18 Bar speaker Vendor
2021-07-17C12 Bar hall sound Merchant
2021-07-26Resolution 1.5 ktv bar sound Vendor
2021-07-16F1 Mini bar sound Factory
2021-07-26Resolution 4T Touring Bar use sound Vendor
2021-07-16RM15 Audio for bars Vendor
2021-07-15I8SUB Gymnasium audio Vendor
2021-07-26Teach you how to choose audio with eight tricks
2022-03-02Chengdu DNA bar special audio---Mateng Audio
2022-08-18Using stage acoustics to improve stage artistry
2022-11-22How do professional audio systems select power sequencers?
2022-11-11What is sound DSP?Good sound ktv
2022-05-24Party Bar Audio System Finland Aura audio China Entertainment General Agent Mateng Audio Company
2021-12-17Audio classification.Audio equipment for video conference room
2022-08-12How to do it to truly ensure the effect of home theater.Professional bar sound company
2023-03-25Detailed explanation of commonly used cables for audio equipment There is a mystery in connecting pl
2022-04-20How to choose entertainment audio according to the sound quality of the audio.Domestic bar audio Ven
2021-11-26How to install and debug villa private theater audio
2022-03-22Chongqing WUDU boundless space entertainment bar audio is provided by Ma Teng Audio.Audio equipment
2022-03-10