Recently, many friends are asking how to eliminate the sound in the original song. Here I sorted it out and gave you a systematic and detailed introduction on how to make accompaniment tapes with Cool Edit Pro. As long as you have the original audio file of the song, you can quickly make it into an accompaniment tape. I'm only talking about eliminating the original sound and ensuring the quality of accompaniment to the greatest extent. But first of all, I want to explain that the method is always dead. If you don't understand it carefully, even if you recite it, it won't have much effect. I only introduce it to you here, not mechanically copy it for you. It takes more practice and experience to really make something decent. Therefore, I personally don't recommend you to use this method.

Secondly, no matter what you do, the method introduced here can't completely achieve the original effect. Generally, some of the original songs will be retained, and some may be powerless. Next, I will start with the basics. If a patient friend reads carefully, it may be of great help to you.

First, why can I cancel the original song?

Suppose there is an audio file in our computer, whether it is MP3, WMA or WAV, usually an audio file is a song. When we listen with our ears, we usually have an original song and accompaniment. The characteristics of original singing can be roughly divided into two types: 1, and the audio-visual position of human voice is in the center of the whole sound field (balanced distribution of left and right channels); 2. The sound frequency is concentrated in the intermediate frequency and high frequency parts. After understanding this, all we have to do is tell the computer to "eliminate the equivalent sound of the left and right channels and the sound whose frequency is concentrated in the intermediate frequency and high frequency". Therefore, the computer will always be dead, completely different from the human brain, and will only listen to orders and execute them. So I warn you again that the computer or software is dead. They are always tools, things that follow your thinking. If you want to make something decent with them, you will have to use your head eventually.

Second, those softwares can eliminate the original songs.

There are many softwares to eliminate original songs, among which I personally know Cool Edit Pro, T-RackS, Vogone, Dart Karaoke, WinRIP and so on. I won't introduce it here. Generally speaking, although each software produces different effects, it can't achieve the ideal effect. For Cool Edit Pro, it is not an automated software. The most important thing is to listen to it yourself and then give it an instruction to help you realize what your brain needs. If you are interested, you can also search one of the following to try your own needs. Here, I will only introduce you to the silencing production of two softwares, cool editing Pro and T-RackS.

Third, the basic method of eliminating the original singing with Cool Edit Pro

In fact, it can be said that it is very simple to eliminate the original song with Cool Edit Pro, but if you want to be perfect, you still have to work hard.

What I'm talking about here is just an independent function in the Cool Edit Pro menu. If you choose and use it, you will get the result immediately. But in order to get the best effect, it is not enough to just use the "Cancel Original Music" menu function of Cool Pro! ! You need to do more detailed audio processing and setting.

Anyway, let's try the simplest method of "eliminating the original song" first.

First enter the "Monorail Editing Mode" interface. Call in the audio file with File → Open. I take the fate of Yu Chengqing as an example. The file name is fate. MP3。 After calling in, select Effect → Amplitude → Channel Mixer (Chinese version means Effect → Waveform Amplitude → Channel Remixing), select Vocal Cut in the preset (see figure 1), and keep the default settings in the dialog box. Click ". After processing, the accompaniment music of the song "Destiny" was obtained. The principle of "sound interception" function is to eliminate all sounds (including human voice and some accompaniment) in the center of the sound field. Therefore, the use of this function mainly depends on the source of accompaniment, whether there are instruments and parts placed in the center of the sound field before mixing, and if there are, they will be eliminated by this function, resulting in the attenuation of sound quality. For example, there are "tonic", bass and so on in the center of the general sound field. If you need a mute sound source, which is the source of these principles, I still suggest not using this function, so that the human voice will be eliminated until all the accompanying music is eliminated, which is really depressing.

Ok, let's hear your own results! Please listen carefully, you will find that the accompaniment is different from the original sound. The original songs in the accompaniment band have become "empty", but the original songs can still be faintly heard. In fact, this is the so-called effect after noise elimination (it is impossible to completely eliminate the original song). This accompaniment effect can basically be used as the background music of karaoke. When you sing, your roar like an ox is enough to cover up the original song. If you are not a friend who asks for original accompaniment, this reason should still be ok, hehe. (I'm not finished here! )

In addition, the audio quality in the whole accompaniment band has declined, and what we hear is an accompaniment sound that lacks three-dimensional sense (similar to mono audio), and there may be some "hissing" sounds, and the low-frequency part has also weakened a lot. Anyway, it doesn't sound cool.

Maybe you are not satisfied with this effect now? Don't worry, learn some advanced processing skills first. Please pay attention to the "silence principle" I mentioned earlier.

Fourth, the cool editor Pro eliminates the advanced original singing.

Let's summarize the unsatisfactory results first. First, the voice of the original singer seems to be not clean enough; Second, there is a sizzling noise; Third, the stereo effect is reduced; Fourth, the low-frequency effect is weakened.

The following four questions are corrected one by one. First, open the soundtrack of "Destiny takes a hand.mp3" in the cool editor Pro.

1. Eliminate the original sound more cleanly.

Select Effect → Amplitude → Channel Mixer (Chinese version is Effect → Waveform Amplitude → Channel Mixing), and select vocal cutting in the preset. Previously, we used default values. Now, let's try to adjust the parameters on the left (see Figure 2). During the adjustment process, you can click the "Bypassa" check box at any time to compare the original sound.

There are two "Reverse" check boxes on the left. By default, one of them is preceded by a "√". Now we cancel "√", and the sound becomes drier, but the sound field becomes wider, the three-dimensional sense is enhanced, but the low frequency is reduced more. Maybe this effect is suitable for some songs, but it is not very good for some songs. When dealing with it, it is still necessary to debug it slowly and carefully. If this method is not good for the song you want to deal with, naturally keep the default settings.

By default, this dialog box has been in the state of eliminating the original sound to the greatest extent, so there is basically no way to eliminate the original sound more cleanly here. Personally, I find that different people sing different songs. Some will be better, while others are far from it. However, we can optimize this process through the four sliders on the left side of the "Mixer" dialog box (see Figure 2). Because the final effect is greatly influenced by the soundtrack, there is no fixed "formula" for adjustment here. Only by moving the slider slightly to the center point will the stereo effect become more obvious, but the human voice will also become more obvious. We have to compromise on stereo and vocal cancellation. Here, the processing result is saved as "Destiny takes a hand (accompaniment) .mp3".

Step 2 Eliminate the "hissing" sound

The noise comes from two places, and here I mean the noise in the accompaniment. First, your soundtrack has been lossy compressed (such as MP3 or WMA coding) and will naturally appear after "sound mixing". Second, the clean air and the sound of teeth have not been eliminated. Therefore, if conditions permit, CD tracks should be saved directly to the hard disk in WAVE format for processing.

In order to eliminate the "hissing" sound, the "equalizer" function of Cool Edit Pro is generally used. First tune the just-eliminated accompaniment "Destiny takes a hand (accompaniment) .mp3" and select "Effect → Filter → Parameterized Epulizer" (Chinese is "Effect → Filter → Parameterized Equalizer"). This "parameter equalizer" is not very intuitive for beginners. Friends who don't know much about the equalizer here can also choose to use the "graphic equalizer" to adjust, and its operation interface is much more intuitive and easier than the "parametric equalizer". Here I use the "parameter equalizer" to eliminate the "hissing" sound in the accompaniment.

The function of "equalizer" is to enhance or attenuate the sound intensity of a certain frequency band or several frequency bands. The sound of "hissing" is usually around 8000Hz, and we will attenuate the sound intensity in this area (see Figure 3).

This processing also helps to further eliminate human voices. For example, the frequency response of human voice is mainly intermediate frequency, so we can appropriately attenuate the intermediate frequency part. However, the sound of air and teeth is mainly above 6000 Hz- 18000 Hz, which can be attenuated according to the actual situation, but the clarity of accompaniment will be lost. Equalizers are generally used for repair and optimization, and the elimination of human voices depends on * "effect" → "waveform amplitude "→" channel remix ". Don't forget to save it when you're finished here!