VEGAS 5.0 Audio Novice Introduction-Audio processing and DX audio plugin

Five lessons audio processing and DX Audio plug-in introduction

Through the last lesson, you can record the singer's clean voice completely.

The next step is to do audio processing for the clean vocals to get the best sense of hearing.

Commonly used audio processing of the human voice generally includes the following aspects (note order, very important):

1.EQ: That is, the balance, because the microphone pick up the difference in audio and voice characteristics of singers, generally according to recorded the actual effect of the human voice for appropriate treatment, such as some singers sound too sharp, some sound very stuffy, some nasal very heavy, some Lishing very heavy, These are due to the sound of different frequencies of the intensity of the imbalance caused by the hearing difference. The EQ can be used to deal with the sound signal equalization (increase or decrease) of each frequency band, and can improve the function.

2. Actuator: Also known as harmonic generators, you can add some random harmonics to sound in some bands, the appropriate incentives will give the sound of landscaping ingredients, the difference between the actuator and EQ is: eq just adjust the signal strength of certain frequencies, the actuator is in some frequency bands to add new acoustic components. Inappropriate incentives are destructive to sound, making sounds "dirty". So many people often do not do incentive processing.

3. Compression (pressure limit): Automatic adjustment of the dynamic range of sound level. Say simple point you understand faster: automatically to the time on the track all the sound signal to do the following: When the sound is small, the preset parameters to increase the volume, when the sound exceeds a certain limit, start to set the proportion of preset parameters to reduce the volume of compression, The final result is to change the dynamic range of the entire sound track (the difference between the maximum volume and the minimum volume), and usually the function of the limiter is to reduce the dynamic range. The sound of the pressure limit sounds more full and powerful, and the place where the voice is small sounds effortless, and the voice is very loud.

4. Reverb: Beautify the sound, so that sound has a sense of space, sound mellow and transparent.

Another question that we are more concerned about, if the material noise how to remove noise? First of all, amateur recordings can not have no bottom noise, the measurement of noise size is not measured by the noise level, is measured by signal-to-noise ratio, and signal average electric and bottom noise average level of the size comparison. High signal-to-noise ratio indicates low noise.

The common methods of noise removal are as follows:

1. Noise Gate: Set a level of threshold value, below this threshold of the signal level all filtered out, above the threshold of the signal level all through (here signal level refers to the total level of signal and noise level), this method can be very effective to remove the singing intermittent background noise, and the original sound without damaging effect), The disadvantage is that when the voice comes out of the noise door open, noise signal also followed, can not remove the entire material of the bottom noise. High signal-to-noise ratio of the signal noise is less obvious, so the signal-to-noise ratio of the sound material does not need to remove noise. The plugin button on the left of the VEGAS5.0 track has three plug-ins, in turn, the noise door, EQ, and voltage limiter. So if your footage is going to remove background noise on the first plug-in set, it's easy to drag that slider to the appropriate parameter position. How appropriate is the parameter tuning? Generally in -50~-40db, the actual background noise size is not necessarily, try it yourself, the correct position is not to hear the background noise, but the voice of the smallest sound is not filtered out.

2. Sample de-noising method: This is a professional audio processing software to remove the continuous and stable background noise of a method, the principle of noise removal is to sample the waveform of the sound, and then the entire section of the material waveform and sampling noise samples analysis, automatic removal of noise. The advantage of this noise removal is the ability to completely remove the noise, the disadvantage is that the original sound of the quality of the damage, signal-to-noise ratio is more destructive. After this noise removal the sound of metal is very strong. Therefore, generally do not recommend this method to the singing of the human voice in addition to noise, as far as possible in the early recording control to the highest signal-to-noise ratio is the key to truly solve the problem.

3. Other methods of de-noising: Frequency spectrum analysis of the frequency of noise, through the adjustment of EQ, attenuation of the signal level of the frequency of the bottom noise. This signal to the original vocal band has also been attenuated, creating new problems and using less.

Question one: Can VEGAS5.0 use the sampling de-noising method to remove noise?

First, to emphasize a concept, in audio, VEGAS5.0 is just a very professional multi-track mixer software, not audio processing software, can do regular editing and processing of audio only through the DX audio plug-ins do non-destructive editing, and real-time preview effect, to meet the vast majority of audio editing requirements. VEGAS5.0 supports an intelligent sample de noising DX audio plug-in, but the noise removal effect is relative to some other professional software such as Sam 2496, there is a certain gap (for the original sound damage is larger). If you want to sound like other professional software, you can install Sonundfroge (Sonic Company, now a very powerful professional audio editing software developed by Sony Company, and other large audio workstation software than just can not be a multi track remix, Its birth is to cooperate with the Vegas series of multi-track mixing software use, from here also see Sony series Software design of the scientific and originality, never develop redundant software, this is also Vegas series of software despite the powerful, installation process is still concise, the operating interface is still simple, A very important reason for the simplicity of the operation is that it can be invoked directly in the VEGAS5.0 program, destructive editing and some more professional functionality, just as handy as a module of its own, so that VEGAS5.0 is perfect in the audio field. The way to call it in VEGAS5.0: Right click on the audio track in the timeline, click on the audio editing software to open or open the copy of the audio editing software.

Question two: can VEGAS5.0 make tonal processing or speed processing to audio material? Does the processing have any effect on audio quality?

Can, in the timeline right click on the audio track, click Properties, Pop-up Audio event window, variable speed modulation method selected classic, the first two are the original material and the length of the new material, pitch is the adjustment of the tone, each + 1 represents a small two-degree interval, that is, in the original tune on the basis of the rise of half a note,- 1 represents a small two-degree interval, which is to change the pitch without changing the speed. If you adjust the second item without changing the pitch, you change the speed without changing the pitch. If the check and change are locked, the pitch and speed are changed proportionally. Only changes in the lock (pitch and speed change at the same time) are the least damaging to audio quality.

Question three: for recording volume or accompaniment of the overall low volume, there is no quick adjustment method?

There, in the timeline right click on the audio track, click on the switch, click Normalize. Normalization is the overall increase in volume, and the maximum volume default value is no more than -1db. The maximum normalized volume can be adjusted to its own needs by clicking on options, parameter selection, audio, peak level normalization, and setting parameters directly.

Common DX Audio plugin: sonitus FX 3.0a,waves 4.0,TC 2.1,bbe 2.0. Here are a few common plug-ins to do a brief introduction:

1.Sonitus FX 3.0a Very professional audio plugin, the general audio processing with it is enough, the integration of the balance, compression, edge, wow, delay, chorus, surround, reverberation effect, each effect is very good, it is worth mentioning is its reverberation effect, the human voice of the processing is very appropriate, It is said that more than 300 dollars sold abroad (I do not have a textual research, for reference only).

2.waves 4.0 is the most powerful and full-featured audio plugin, in addition to the function of the above plug-ins, but also has a very famous C4 (for a piece of sound material of each frequency band to do different degrees of pressure), various types of stereo expansion, more detailed division of the more balanced and more comprehensive, professional. The effect is top, it is said to sell more than 400 dollars abroad (I have no textual research, for reference only).

3.TC is also the top of the effect, with a balanced, compression, reverberation and other effects, it's reverberation algorithm in the industry is the top, and it is about 20,000 yuan hardware effect of the equivalent, EQ balanced has analog tube function, so that sound more warm. It is said that the plug-in sold more than 700 dollars abroad (I do not have a textual research, for reference only).

The 4.BBE 2.0 excitation effect device, the specific frequency band adds some overtone, makes the human voice or the instrument more has the magnetism and the individuality.

The above is to make a common DX audio plug-ins for a general understanding, beginners may be at a loss, this is good, that is good, in the end with which one? In fact, no matter which one can meet your needs, have used the difference is very small, according to their own operating habits, their ears to choose their favorite plug-ins. Well, this class is rich enough to digest, pay attention to the next lesson, "DX Audio plug-in actual combat exercise."