How to make the sound clean

1. Use high-pass filter.

The frequency of most musical instruments is not that low. When we mix, we turn most instruments down very low.

Cut to 60Hz~ 100Hz. The purpose is to make room for drums, bass and other low-frequency instruments and make our bass more impactful. Another purpose is that most musical instruments actually have only some noise or unnecessary sound at this frequency. So if we lower this frequency, our music will be cleaner as a whole.

Cut unnecessary clips.

Not all the instruments in a song are playing all the time, and there will be some breaks in the middle. We may only record some environmental noise, so the best way at this time is to cut it off, or the shelf of the drum.

Tom and the floor

Tom, there is not much time to show up. When he doesn't play, these clips should be muted or cut directly, because these clips have crosstalk from other drums or receive a lot of vibration, which we don't need.

3. Use expanders or doors to reduce noise.

Expander and compressor are two tools with the same principle but opposite effect. Compressor turns down the volume to make the overall dynamics more even. Expander, on the other hand, compresses the bass to make the intensity more exaggerated, so when there is some bass mania information in our songs, we can use Expander to compress the volume.

4. Handle intermediate frequency and low frequency carefully.

Mid-low frequency is the overlapping area of many musical instruments here, and it is also an important frequency for the loudness of most musical instruments, but too much of this frequency will make people feel that the song sounds boring and too muddy. It is impossible for a song with a large compilation to hold all the instruments here, so you must choose which ones are important and which ones can be attenuated. Properly handled, this frequency can make your voice sound rich and not too muddy.

Extended data:

In sound technology, it includes volume, pitch and timbre. The volume of sound, that is, the intensity and amplitude of audio; The tone of sound, also called pitch, is the frequency of audio or the number of changes per second; The timbre of sound, that is, the overtone or harmonic components of audio.

Talking about the sound quality of a sound is mainly to measure whether the above three aspects of the sound reach a certain level, that is, whether it has a certain intensity relative to the pitch of a certain frequency or frequency band, whether the amplitude of each frequency point is uniform, balanced and full at the same volume within the required frequency range, whether the frequency response curve is straight and whether the pitch of the sound is accurate, which not only faithfully presents the true face of the sound source frequency or component, but also meets the requirements.

The sound is moderate and rich in overtones, which sounds beautiful. The value of sound quality is determined by the actual bit rate.

Sound purity

Whether the acoustic material can reproduce the sound quality of the original instrument depends on the heavy conversion process and the rendering of the equipment itself. For example, a speaker made of plastic will add plastic sound to the playback sound.

; The chassis made of aluminum, copper and iron will also have different metallic sounds; And various components, such as crystals, vacuum tubes, capacitors, resistors, etc. , it will also produce its own different sound quality and penetrate into the playing sound.

; The noise caused by poor quality of parts will also make the sound have impurities.

References:

Baidu encyclopedia-sound quality