How to use CoolEdit Pro to create a silent accompaniment

Introduction to CoolEdit Pro accompaniment production:

Cool Edit Pro V2.1 is a powerful sound effects processing software. It can be very convenient for various processing of sound effects. It has many functions. Here is a brief introduction to the steps of using it to eliminate the original vocals of the song.

Start the Cool Edit Pro V2.0 program, click the "Open" command in the "File" menu, and open the song file that needs to be removed from the original vocals. At this time, the wave file of the selected song is displayed at the top of the screen window. Select the entire wave file, and then select the "Channel Mixer" command in the "Amplitude" submenu of the "Effects" menu. , opens the Channel Mixer dialog box.

In the channel mixer dialog box, you can make specific settings for the left and right stereo images. The left area of ??the dialog box is the specific left and right image quantization control area, and the right area is some commonly used preset effects, such as mono to dual channel, dual channel synchronization, channel swap, vocal cancellation, etc. The "Vocal Cut" effect is exactly what we need. It can effectively remove the vocal singing part in the stereo sound. Select the "Vocal Cut" option in this preset window, and the specific quantization parameters of this option preset by the system will appear on the left. Click the "Preview" button in the upper right corner to preview the selected song. You can hear the sound effect in real time after removing the original vocals. If you are not satisfied with the processing effect, you can also adjust the specific parameter values ??of the left and right image bits as needed in the control area on the left until you are satisfied. Click the "OK" button and Cool Edit Pro will immediately perform formal vocal removal effect processing on the selected song. After the processing is completed, the system returns to the main interface window and selects the "Save As" command in the "File" menu to save the processed song file to the computer.

Note: Using this method will also result in different processing effects due to the different production methods used in the source files. In general, this processing method can achieve very good processing results for song files with relatively simple structures and high fidelity to the original sound (such as CD music files).

Here are several ways to remove vocals:

Sound Forge

1) Open the audio file

2) Select Edit> Select All, select all data of the file.

3) Select Process>Channel Converter

4) Select Stereo to Stereo - Vocal Cut preset in the channel conversion dialog box

5) If you want to get a pseudo-stereo file, no other settings are needed; if you want to get a pseudo-mono file, activate the Invert Right Channel Mix option, and the final pseudo-mono sound will be Better.

6) Click OK.

Cool Edit Pro

1) Open the audio file

2) Select Edit>Select Entire Wave and select all the data of the file.

3) Select Transform>Amplitude>Channel Mixer and select Vocal Cut preset in the channel mixer dialog box

4) If you want to get a pseudo-stereo file, Do not activate the New Right

Channel Invert option; if you want a pseudo-mono file, no other settings are required. As mentioned before, the final result of pseudo-mono will sound better.

5) Click OK.

DeComposer 3 ways to eliminate vocals

From the main interface, we can see that there are 3 brush-shaped icons next to the play button, which are exactly what DeComposer provides us. There are 3 methods of silencing human voices: note silencing, frequency silencing and noise filter silencing. We can process these three attributes of the sound to achieve the best results.

After pressing Edit Note Filter Parameters, a dialog box for the note silencing method will appear. In the Beginning Note and Ending Note, enter the starting and ending pitch positions of the vocal singing respectively; set a Operational processing sensitivity. This value cannot be too large, otherwise other parts of the sound will be eliminated; nor can it be too small, otherwise the silencing effect will not be achieved. Give it a try and adjust it until you're satisfied.

Note silence method dialog box

It doesn’t matter if you can’t accurately judge the pitch of the human voice. Just click on the speaker icon and you will hear the pitch immediately. sound effect and adjust it accordingly. There is also a simpler way, to directly call the preset parameters in Filter Instrument. DeComposer has given us the most careful consideration here, providing silencing parameters for various instruments. Choose one of them, and then listen to the effect. If you are not satisfied Make further changes.

After completing these settings, press the OK key to return to the main interface, activate the Note Filter button in the shortcut toolbar above, indicating that the sound will be silenced by notes, and then press the exclamation mark icon ( Apply Filter), wait for a while, you can see the newly generated file in the directory area, use Play to play it and listen to the effect. If you are satisfied, save it in the directory you set up at the beginning.

Of course, in addition to the note silencing method, you can also use the frequency silencing method. Click the Edit Frequency Filter Parameters button to enter the frequency silencing method setting window. The parameters here may seem a little complicated, but for ordinary users, you don’t need to pay too much attention to their specific meanings. You can just use the default values ??provided by DeComposer. After completion, be sure to press the Frequency Filter button above the main interface, because this means that we will process it with frequency silencing, otherwise we will not get the effect we want.

Frequency silencing method setting dialog box

The noise filter silencing method is mainly used to eliminate high-frequency and low-frequency noise. It also has a certain effect on eliminating human voices in songs. When using Different parameters should be set for different songs to achieve good results.

Example operation

We take the demo file that comes with DeComposer as an example to actually perform a silencer operation on DeComposer, so that you can experience its amazing performance immersively.

First, use the Open button to open the Tutorial.wav file in the DeComposer directory, see it displayed in the file directory area, use the Play button to play it, and hear a piece of music mainly featuring a guitar solo. Let's take this guitar and use DeComposer to completely "annihilate" it! Then open the note silencing method dialog box to set parameters. We directly select the guitar parameters in the instrument presets. We see that the range above has changed accordingly, and set Note Range to Exclude Note Range, and press OK. Activate the Note Filter button in the main interface, and finally press Apply Filter. After waiting for a while, the applied file will appear. Press the play button to listen. It is unbelievable. The sound of the guitar is completely gone. DeComposer is so cool. .

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There are many friends here recently Asked how to remove the sound from the original song.

Here I have sorted it out and will give you a systematic and detailed introduction to how to use Cool Edit Pro to create accompaniment tapes. As long as you have the original audio file of the song, you can quickly create an accompaniment tape. Here I will only talk about eliminating the original singer and ensuring the quality of the accompaniment to the maximum extent. But first of all, what I want to explain is: methods are always dead. If you don’t experience them carefully, even if you memorize the methods thoroughly, it will not be of much use. I am only introducing it to you here, not to teach you mechanically. To really make something decent, you still need more practice and experience. Therefore, I personally do not recommend everyone to use this method.

Secondly, no matter how you do it, the method introduced here cannot fully achieve the effect of the original version. Generally, some of the original singing sounds will remain, and some may not be able to do anything. Next, I will start from the basics. If you have the patience to read it carefully, it may be of great help to you.

1. Why can the original song be deleted?

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 to it with our ears, there are usually original singers and accompaniments in a song. The characteristics of the original singer can be roughly divided into two types: 1. The sound image position of the human voice is in the center of the entire sound field (balanced distribution of left and right channels); 2. The sound frequency is concentrated in the mid-frequency and high-frequency parts. After we understand this, we only need to tell the computer to "eliminate the equal sounds of the left and right channels with frequencies concentrated in the mid-frequency and high-frequency parts." Therefore, the computer is always dead and is completely different from the human brain. He will only follow orders and execute them. So once again, I would like to warn everyone that computers or software are dead. They are always tools, things that operate according to your thinking. If you want to use it to make something decent, you still have to rely on your brain.

2. Which software can eliminate original songs

There are many software that can eliminate original songs. I personally know of Cool Edit Pro, T-RackS, Vogone, Dart Karaoke, WinRIP, etc. I won’t introduce them one by one here. In general, although the effects produced by each software are different, they all fall short of the ideal results. Cool Edit Pro is not an automated software. The most important thing is to listen to it yourself and then give it commands so that it can help you achieve what your brain needs. If you are interested, you can also search for the following and try them one by one, depending on your needs. Here I will only introduce to you the noise reduction production of Cool Edit Pro and T-RackS.

3. The basic method of using Cool Edit Pro to eliminate the original song

The method of using Cool Edit Pro to eliminate the original song is actually very simple, but if you want to make it very Perfection still requires some effort.

The "Eliminate Original Singer" I am talking about here is just an independent function in the Cool Edit Pro menu. Select and use it and the result will be immediate. But if you want to get the best results, just using the "Eliminate Original Singer" menu function of Cool Edit Pro is not enough! ! You still have to do a lot of detailed audio processing and settings.

In any case, let us try the simplest method of "eliminating the original song" first.

First enter the "Single Track Editing Mode" interface. Use "File" → "Open" to load an audio file. I have taken "Mother" by Yan Weiwen as an example, and the file name is "Mother.MP3". After tuning in, select "Effects" → "Amplitude" → "Channel Mixer...." (the Chinese version is "Effects" → "Waveform Amplitude" → "Channel Mixer"), and select "Presets" Vocal Cut" see (Figure 1), keep the default settings on the dialog box, and click the "OK" button. After processing, the accompaniment music of the song "Mother" was obtained. The principle of the "Vocal Cut" function is to eliminate all sounds (including vocals and part of the accompaniment) whose sound image is in the center of the sound field. Therefore, the main thing to use this function is to look at the source of the accompaniment and whether there are musical instruments and vocals placed in the center of the sound field before mixing. If there are, using this function will eliminate them, resulting in attenuation of the sound quality. For example, generally the sound field placed in the center includes "main voice", BASS... and so on.

If the audio source you need to mute is the source of the principles I mentioned, I still recommend not to use this function. In this way, the vocals will not be eliminated to the extent that the accompaniment music is eliminated, which is really depressing!

Okay, let’s try out your results! Listen very carefully and you will notice that the accompaniment sounds different from the original soundtrack. The original singer's voice in the accompaniment tape has become very "virtual", but the original singer's voice can still be vaguely heard. In fact, this is the so-called silencing effect (it is absolutely impossible to eliminate the original singer). This accompaniment effect can basically be used as karaoke background music. When you sing, your cow-like roar is enough to cover up the original singer's voice. If you are not a friend who requires very original accompaniment, this should still work, hehe. (I'm not finished here yet!)

In addition, the audio quality throughout the entire accompaniment tape has declined, and what we hear is a lack of three-dimensional accompaniment sound (similar to mono audio ), there may also be some "sizzling" sounds, and the low frequency part has also been weakened a lot. All in all, it sounds very unpleasant.

Perhaps you are very dissatisfied with this effect now, aren't you? Don’t worry, let’s learn some advanced processing techniques. Please pay attention to the idea of ????the “silencing principle” I mentioned earlier.

4. Advanced Cool Edit Pro erasure

First, let’s summarize the results that we are not satisfied with. First, the sound of the original singer seems not clean enough; second, there is a "sizzling" noise; third, the stereo effect is reduced; fourth, the low-frequency effect is weakened.

The above four problems will be corrected one by one below. First open the "Mother.MP3" soundtrack in Cool Edit Pro.

1. Eliminate the original vocal sound more cleanly

Select "Effects" → "Amplitude" → "Channel Mixer...." (the Chinese version is "Effects" → "Waveform Amplitude" → "Channel Mixer..." "Shrink"), select "Vocal Cut" in "Presets". Previously we dealt with the default values, now we try to adjust the various parameters on the left (Figure 2). During the adjustment process, you can click the "Bypassa" checkbox at any time to compare the original sound.

There are two "Invert" checkboxes on the left. By default, one of them has a "√" in front of it. Now we cancel the "√" and the sound becomes "dry", but The sound field becomes wider and the three-dimensional effect is enhanced, but the low frequencies are reduced more. Maybe this effect is more suitable for some songs, but not very good for some songs. You still have to debug it slowly and carefully when processing. If this method is not good for the song you want to process, naturally keep the default. set up.

Under the default settings, this dialog box is already in a state to eliminate the original sound to the greatest extent. Therefore, if you want to eliminate the original sound more cleanly, there is basically no way here. I personally found that songs sung by different people have different effects on the original singer. Some will be better, and some will be less than ideal. But we can optimize this processing through the four sliders on the left side of the "Channel Remix" dialog box (see Figure 2). Since the final effect is greatly affected by the original soundtrack, there is no fixed "set" for the adjustment here. You can only move the slider slightly to the center point. The stereo effect will be more obvious, but the vocals will also become more obvious. When it comes to stereo and vocal cancellation effects, you have to compromise on one side. Here, the processed result is first saved as "Mother (accompaniment).MP3".

2. Eliminate the "sizzling" sound

Noise comes from two places, here I am referring to the noise in the accompaniment. First, your original soundtrack has undergone lossy compression (such as MP3 or WMA encoding), which will naturally appear after the "channel remixing" process; second, the clean breath and sibilance have not been eliminated. . Therefore, if conditions permit, the CD audio track should be directly saved to the hard disk in WAVE format for processing.

To eliminate the "sizzling" sound, you generally need to use the "equalizer" function of Cool Edit Pro.

First, load the accompaniment "Mother (accompaniment).MP3" that has just been eliminated, and select "Effects" → "Filters" → "parametric Epualizer" (Chinese is "Effects" → "Filter" → "Parametric Equalizer"). This "parametric equalizer" is not very intuitive for beginners. Friends who don't know much about equalizers can also choose to use the "graphic equalizer" to adjust it. Its production interface is much more intuitive and easier than the "parametric equalizer" . Here I use the "parametric equalizer" to eliminate the "sizzling" sound in the accompaniment.

The function of "equalizer" is to enhance or attenuate the sound intensity of a certain frequency range or several frequency ranges. The "sizzle" sound is usually around 8000Hz, and we attenuate the sound intensity in this area.

This processing also helps to further eliminate human voices. For example, the frequency response of the general human voice is dominated by the intermediate frequency, and we can appropriately attenuate the intermediate frequency part. Breathing sounds and sibilant sounds are mainly above 6000Hz - 18000Hz. They can also be attenuated according to the actual situation, but the clarity of the accompaniment will be lost. The equalizer is generally used for repair and optimization. To eliminate the human voice, you have to rely on "Effects" → "Waveform Amplitude" → "Channel Remixing". Don’t forget to save when you’re done here!

3． Stereo effect enhancement

Stereo effect enhancement is a relatively professional processing method. Since it cannot be fully written out at the moment, I will only briefly talk about the stereo enhancement method. You can use stereo effect enhancement plug-ins (such as: WAVES Plug-in effect equipment is a good processing plug-in, I will not introduce them one by one here) or use professional stereo enhancement software to make appropriate adjustments, and you can also add some reverberation effects appropriately.

4. Low-frequency compensation

"Mother (accompaniment).MP3" is the result after we eliminated the original singing and the "hiss" sound, but its audio was attenuated a lot. To compensate for the low frequency, you can use Cool Edit Pro's "Equalizer" here, but do not use this file that has been "eliminated" because its low-frequency effect has been attenuated. If you perform gain processing, the effect will definitely not have the original soundtrack. Okay, so we're working with the soundtrack. Take out the low-frequency part of the original soundtrack as compensation for the accompaniment.

Now first tune in the "Mother.MP3" soundtrack, select "Effects" → "Filters" → "parametric Epualizer" (Chinese is "Effects" → "Filter" → "Parametric Equalizer"), After entering the "Parametric Equalizer", adjust the parameters to look like Figure 4. Click "OK" to process immediately, so that you can get the low-frequency part of the "Mother" soundtrack. Here, save the file as "Mother (BASS).MP3" for now. (Remind everyone again, it is best to save in lossless WAV format from the beginning, so that the final effect will be better.)

5. Multi-track synthesis

I don’t need to say more about multi-track synthesis. You must be familiar with it. Here, first insert the muted "Mother (accompaniment).MP3" into the first track ; Insert "Mother (BASS).MP3" into the second track, and the mixing and condensation is done. If you feel that the volume of the two audio tracks is not very balanced, you can adjust the volume of the next two audio tracks in multi-track mode until you hear the accompaniment is full and suitable, then mix and save it.

The focus of human voice elimination is actually to strike a balance between the degree of human voice cancellation and the playback effect. If the playback effect is not considered, the human voice can be eliminated more cleanly, but it is not necessary to do so. As long as your voice covers the original song when you sing, it's fine. In this way, the effect of the accompaniment tape can be guaranteed, and the sound of the original singer will not be too obvious.

I would also like to warn everyone here that I personally recommend this method only for reference and study, and do not expect it to bring you any good results. Also, the use of this method mainly depends on the source of the songs you want to silence. Not all songs can be eliminated. It must first meet the principles and conditions I mentioned earlier. Don’t blame yourself for poor results. Don't blame yourself or others, or your own pretentiousness or the device's sound card or anything like that. Because the production of these methods has nothing to do with the equipment, the quality of the effect is by no means caused by the badness of your equipment. The most important role of the sound card in producing the effects here is to output the sound so that you can get good or bad results.

Ultimately, it’s up to you to experience it carefully.