How to Adjust Mic and Speakers to Avoid Howling When Singing Karaoke Easily

For those who regularly use microphones, they must have encountered the annoying microphone howling problem at least once. So what can you do? How to adjust microphone and speaker to avoid howling or not? Let's Phuc Truong Audio Find understand how to solve this problem completely!

1. Why do microphones and speakers howl?

Microphone howling is a common problem, most often occurs when using this device, causing inconvenience to users. Especially the line bluetooth karaoke microphone howling will make the singer extremely uncomfortable. Before solving the problem and finding a way to limit this situation, you need to know clearly the reason why the gooseneck microphone or karaoke microphone howls. There are many reasons leading to this problem, the most common reasons can be listed below.

1.1 Microphone is pointed straight and close to the speaker

The most common cause of howling is when the wired or wireless microphone is opposite or too close to the speaker. For example, when singing karaoke, the microphone will record your voice and play it back to the speaker. If you place the microphone too close to the speaker, the sound will be accidentally recorded and amplified by the microphone. In this way, the cycles occur exponentially, causing the microphone to howl.

1.2 There is sound resonance

The space in the room and the resonant frequency are also factors that lead to howling in event and karaoke microphones. All objects, furniture and design in the room can also lead to sound being reflected and reverberating. This will cause the microphone to be mixed with a lot of noise, leading to howling. To make it easier to understand, think of putting a conch shell to your ear and listening to the echo. This is also the phenomenon of sound resonance.

1.3 Microphone vent is blocked

In the microphone, there are vent holes located behind the diaphragm. After a period of use, if the microphone is not cleaned and maintained, dirt can clog these vent holes. This will cause the sound to resonate right in the microphone, leading to howling.

1.4 Holding the microphone incorrectly

Holding and using the microphone incorrectly can also cause howling. If the user accidentally covers the antenna of the wireless microphone with their hand, it will also cause howling. Not only that, holding the microphone too close to the mouth can also cause this problem.

1.5 Microphone underpowered

If the microphone does not have enough power for the user and the speaker system, it will also affect the quality of use. More specifically, audio signals that are not within the reserved headroom and reach the clip level will cause the sound to be distorted and howling.

1.6 Amplifier lacks power

Audio amplifiers in general and amplifiers in particular, if their capacity is not enough, will cause the speakers to operate at low volume and also cause howling.

1.7 Incorrect amplifier adjustment

This is also one of the common causes of howling microphones. If the amplifier is not adjusted properly, the microphone will easily howl. In addition, old karaoke amplifiers do not have integrated howling elimination technology, so this can also cause this problem.

2. How to adjust the microphone to avoid howling

After thoroughly understanding the reasons as mentioned above, we will have the ways fix microphone howling The most detailed and simple as follows:

3. Tips for adjusting the sound system to fix microphone feedback

Outside the How to adjust the mic to avoid howling As mentioned above, you can reduce this condition by adjusting the sound system according to the following steps:

• Step 1: Plug the microphone into the correct position, adjust the Music volume to the lowest level.
• Step 2: Adjust the total volume, microphone volume and potentiometers such as Echo, Balance, Mid.. These components must be located in the middle of the bar.
• Step 3: Turn on the power to test the microphone sound. Depending on the space, sound absorption, and soundproofing of the singing room, adjust Echo, Rpt, and Dly. From the middle frame, we can change within 10-15 degrees to the left or right. Adjust until you are sure that the voice is not too loud and does not echo many times.
• Step 4: If your voice is bass-heavy, move the Bass volume to the left from 10-90 degrees. If your voice is treble-heavy, move the Mid volume from 10-45 degrees. Absolutely do not overuse the Hi and Mid volume.
• Step 5: Increase the music volume so that the music does not exceed the volume set by the microphone. If there is whistling or howling, move the Hi of the total volume to the left 10 to 90 degrees.
• Step 6: Microphone HI frequency, Echo must not exceed the middle position, must be moved to the left until the howling stops. The adjustment level is from 10 to 90 degrees depending on the sound level emitted.