Vocal processing and correction
The sound engineer, relying on the experience gained and the knowledge gained, uses various methods when processing vocals. The timbre, character, style, dynamics inherent in vocals have a direct impact on the way it is processed.
When processing a recording, the sound engineer first of all cleans it of extraneous noise, then the recording is processed by the equalizer, subjected to volume equalization, and various effects can be used in the future.
In the process of recording vocals, extraneous noises and sounds inevitably fall on the track. The first barrier may be a pop-up microphone filter. It absorbs most of the energy from pronouncing certain letters, blocking the path to the directed flow of air when pronouncing them. It is extremely difficult to get rid of this type of noise in the future, so it is advisable to absorb them at the initial stage of vocal recording. Record the artist should only be in closed headphones, to prevent the sound of the soundtrack on the track.
Nevertheless, it is recommended to filter extraneous noise that has got onto the recording using special programs – denoiser. The principle of operation of which is reduced to scanning and suppressing noise. Deessers help filter out hissing sounds and harsh voice notes. It is important to maintain the sensitivity threshold, otherwise at a low rate the naturalness of pronunciation will disappear and lisp will appear.
During the processing by the equalizer in the vocal part, frequencies below 60 Hz are removed, and frequencies above 1000 Hz are reduced, thereby giving the vocal part a soft sound. An experienced sound engineer, to give the voice a velvety sound, refers to the range of 2,000 Hz, where, depending on the natural timbre of the vocalist, he adjusts it. Adding a wide band in the process of equalization instead of a narrow one eliminates the appearance of resonant frequencies. During processing, when high frequencies are built up, low frequencies are removed and vice versa.
Resonant frequencies knocking out of the whole picture can be removed. To do this, a narrow band is moved across the range in search of the point of greatest resonance, and then this point is deleted.
When processing vocals, one simple rule should be followed – moderation and harmony. The sound should be natural, pleasing to the ear, warm, bright and deep.
Using an exciter will allow the vocal to add brightness and saturation. When mixed, compression helps to get a smooth sound. Adding effects is carried out during the arrangement.