The following are three common noise reduction methods for speaker 4" 20w wall mount.
1. Noise gate noise reduction method
This kind of operation method is to set a threshold for the speaker 4" 20w wall mount, for example, the noise peak position is -65dB, the signal below this value is directly returned to zero, the signal below this value is directly returned to zero, and the signal greater than this value is directly returned to zero. The signal does not change, so that the noise can be eliminated. This method is somewhat similar to the method of manually removing the noise.
The advantage is that the noise other than the signal larger than the set peak value can be cleaned up.
The disadvantage is that there will still be noise in all the music that is greater than this value in the signal, and it cannot be cleared.
2. Sampling noise reduction method
This type of operation method is to first collect a noise sample, requiring relatively simple noise, and then eliminate the noise in the music based on this sample.
The advantage is that the noise in the music can be removed relatively cleanly, which is also an effect that the noise gate can not achieve.
The disadvantage is that while eliminating the noise, it will affect the same frequency in the music, and at the same time have a certain sense of distortion.
3. Filtering noise reduction method
This type of operation method is to first clearly know which frequency band the noise in the music is in, and then attenuate the signal in this frequency band through EQ, FFT and other similar effectors or effect plug-ins to achieve the noise reduction effect.
The advantage is that it can effectively reduce noise.
The disadvantage is that it affects the same frequency of music.
In summary, these three types of speaker 4" 20w wall mount noise reduction methods have their own advantages and disadvantages. The general disadvantage is that they will affect the original sound quality. But noise reduction does not mean that noise is completely eliminated, so When choosing the speaker 4" 20w wall mount, you should choose the speaker 4" 20w wall mount that suits you.
