source:Industry News release time:2021-12-23 Hits: Popular:Brand bar audio wholesale
1. Equalizer: EQ (Equalizer)
Equalizer is an electronic device that can adjust the amplification of electrical signals of various frequency components separately. It compensates for the defects of speakers and sound field by adjusting audio signals of different frequencies, compensates and modifies various sound sources and other special effects. The equalizer on the mixer can only adjust the electrical signals of high frequency, intermediate frequency, and low frequency separately. It can only be roughly adjusted. It cannot meet the requirements when used as room equalization processing or balance system curve, and an independent professional equalizer Divide the 20hz-20khz audio signal into 15 segments or 31 segments, so that the adjustment will be more accurate and easier to make the system frequency response curve straighter; it can also attenuate unnecessary frequencies freely; use voice amplification as In the main system, howling can also be suppressed to a certain extent by attenuating the howling frequency in an appropriate amount.
In addition, the equalizer is also divided into graphic equalization and parametric equalization. Graphic equalizers are generally used in the peripheral system of the mixer.
2. Effect
Unprocessed music gives people a feeling of inadequacy. The effector is an electronic instrument dedicated to producing various effects. Its function is to change the waveform of the original sound, modulate or delay the phase of the sound wave, enhance the chirp component of the sound wave, and other measures to produce various special sound effects. In addition to speech reinforcement for conferences, many vocal singing and musical instruments will use effectors. When a singer sings, adding a certain amount of reverberation can make the voice full, broad and long, but it sounds like it does not add reverberation. Monotonous and straightforward. Many musical instruments, such as electric guitars, basses, electronic drums, etc., can also produce different styles of sound effects through effectors. These effect types include: Distortion, Compressor, Phaser, Chorus, OverDrive, Flanger, WAH, Delay effector Delay) and so on.
3. Exciter
A harmonic generator that uses human psychoacoustic characteristics to modify and beautify sound signals. By adding high-frequency harmonic components to the sound and other methods, you can improve the sound quality, tone color, increase the penetration of the sound, and increase the sense of space of the sound. Most exciters can not only create high-frequency harmonics, but also have functions such as low-frequency expansion and musical style, making the bass effect deeper, more powerful, fuller and more supportive. High-frequency excitation can improve the clarity, intelligibility and expressiveness of the sound. Make the sound more pleasing to the ears, reduce listening fatigue, and increase loudness. Although the exciter only adds about 0.5dB of harmonic components to the sound, it actually sounds like the volume has increased by about 10dB. The auditory loudness of the sound is obviously increased, the three-dimensional feeling of the sound image, and the increase of the separation of the sound; the sound positioning and layering are improved.
The adjustment of the exciter requires the sound engineer to judge the sound quality and tone of the system, and then make adjustments based on subjective listening evaluation. Excitation is actually a kind of distortion. Poor control will make the sound rougher and more chaotic, and even increase the damage rate of the speaker tweeter. For the high-fidelity restoration of sound quality, most traditional expansion systems do not need to add exciters.
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