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Talk about how to eliminate the noise of monitor speakers

2021-04-20 38
Why can I always hear the bottom noise of my monitor speakers? Since the appearance of speakers, the bottom noise has been a thorny issue that has plagued everyone for a long time. The following article can help to solve the noise problem. It will help you find the equipment with noise and eliminate it by some methods. Definition of noise There are many types of noise, and the causes and performance are also different. Therefore, it is necessary to classify the noise. Below, we will classify the common noises in several audio devices, and briefly describe their causes and solutions.

There are many types of noise, and the causes and performance are also different. Therefore, it is necessary to classify the noise. Below, we will classify the common noises in several audio devices, and briefly describe their causes and solutions.

1. White Noise White noise is a kind of random noise in the whole frequency domain. It sounds like a continuous "hiss" sound, similar to the sound when the TV has no signal to play snowflakes. Solution White noise is usually generated by the gain device or power amplifier in the equipment. If the volume is adjusted too high, it is easy to produce obvious bottom noise. At this time, you need to check the output volume of the sound card, software, and speakers to ensure that no overload occurs in each link. PS: High-sensitivity microphones, such as condenser microphones, can pick up noises that are almost inaudible to human ears in the room environment, such as air conditioning, outdoor noise, wind noise, etc. Don't ignore the influence of environmental noise when recording.

2. Digital distortion. Digital distortion often makes a harsh "buzzing" sound, which does not sound like the sound in nature. Generally speaking, it will vary according to the process used by the computer. For example, when using different software or effects, the digital distortion will also change. Solution Digital distortion is generally caused by some problems with the sound card, or the monitor speakers and the computer are connected to the same socket. Make sure that the power supply of your monitor speakers or other playback devices (such as monitor controllers) and other digital devices such as computers are connected to separate power outlets. Or use a reliable quality power adapter.


Talk about how to eliminate the noise of monitor speakers


3. Feedback feedback. Feedback is usually caused by the microphone being too close to the speaker, and the microphone will pick up the sound of the speaker and cause self-excitation. At this time, there will be a harsh high-frequency howling, and when watching some small bands perform tuning, there will often be howling. Solution When recording, wear headphones instead of the monitor speakers to monitor, so that the microphone will not pick up the speaker sound and self-excited. When you do not have the conditions to use headphones for performances or performances, you can stay away from the speakers and reduce the microphone gain.

4. Crackling noises These sounds can usually be divided into the following two types: One is the randomly distributed crackling noises. The most likely cause is the parameter setting of the software. Increase the buffer size (Buffer Size) should be able to get it. The second is a rhythmic crackle, such as a crackle once every half a second. This may be caused by damage to the sound card or improper installation of the driver. Solution This kind of crackling noise is often caused by incompatible software or driver of the sound card. For example, the Buffer Size is set too low, Bluetooth or wireless devices are connected to the system, or the software compatibility is not good. You can check the software compatibility of the sound card on the official website to see if your computer does not meet the lower requirements of the sound card. If this kind of noise is coming from your speakers, you can try to unplug the speakers and plug in the earphones to determine where the noise is coming from.

Tips for Noise Elimination
1. Use a balance line. The balanced cable has stronger anti-interference ability to the environment, and can have better fidelity when using longer cables. The balanced wire is a three-core wire, of which two twisted-pair wires are used to transmit signals and are wrapped by another shielded wire.
2. Use different power sockets for speakers and computers. If the speaker, the computer and the sound card use the same socket, sometimes it is easy to produce digital distortion noise.
3. Use a power adapter. A reliable quality power adapter will not only eliminate some noise in the line, but also shield the strong current pulse to protect the equipment.
4. Don't overload the amplifier. If the volume of any device or software is turned on too high, it will increase the noise floor, and it will be audible even in the mix. For any audio device that can adjust the gain, when the knob is turned up to a certain level, the inherent noise inside the device will be audible. Therefore, the output gain of the speakers and sound card should not be too high.
5. Don't overuse compression. Excessive use of compression can also easily make the noise floor stand out. You can make the compression threshold level higher and the compression rate lower to make the noise less prominent, and this will also give your mix a greater dynamic range. PS: Mainly refers to recording audio files with average recording quality and large noise floor.
6. The elimination method finds the problematic equipment. If the noise can be heard in the speakers, then remove one device after another and check to see which device is causing the noise. For example, you can unplug the connection from the sound card and plug it into another playback device to listen. If the noise disappears at this time, it means that the problem lies with the computer or sound card. Use the elimination method to find the problem more easily.
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