FAQ

What is the difference between an equalizer and a mixer? The application of the equalizer?

Update time : 2022-11-29 17:39:00

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But what is the difference between an equalizer and a mixer? The application of the equalizer?

FAQ:What is a mixer?
A mixer that amplifies, mixes, distributes, modifies, and processes multiple input signals before outputting through the Master.

FAQ:What is an equalizer?
Equalizer is an electronic device that can separately adjust the amplification of electric signals of various frequency components, and compensate the defects of speakers and sound field by adjusting the electric signals of various frequencies. It can compensate and modify various sound sources and other special functions.

FAQ:What's the difference between a mixer and an equalizer?
The mixer controls a multi-line machine and can mix the sounds from several lines together. Although the mixer generally has equalizer settings, it can only adjust the high-frequency, mid-frequency, and low-frequency electrical signals separately, and affect the entire output effect. The equalizer is a machine that adjusts the sound effect.

The adjustment of the equalizer can be simply understood as: the usual volume adjustment is to adjust the overall amplitude of the sound wave (that is, the overall volume), and the equalizer adjusts the volume of a certain part of the frequency band (or the whole frequency band) of the sound wave.

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Some Applications of Equalizer
1.Improve sound quality. The main purpose of an equalizer is to make the sound of an instrument more beautiful. For example, a high-frequency roll-off EQ can be used to reduce sibilance for a singer, or a cut-off "flanger" for a direct-recorded electric guitar. You can also do a 100Hz boost on the floor toms for a fuller drum sound, or some attenuation around 250Hz on a bass guitar to improve its clarity. Attenuating frequency components around 100Hz helps reduce bass buildup caused by numerous harmonics. Of course, the frequency response of each microphone and its placement also affect the sound quality.

2.Create a sound effect. Excessive equalization can reduce the fidelity of the sound, but it can create an interesting acoustic effect. For example, you can get a "telephone" sound effect by doing a steep attenuation of the human voice at the low and high frequencies. This effect can be achieved with a 1kHz bandpass filter. To make a mono keyboard track sound in stereo, simply send the keyboard sound signal to both channels of the mixer. Boosts low frequencies and attenuates high frequencies for signals biased on the left channel, while attenuating low frequencies and boosting high frequencies for signals biased on the right channel.

3.Reduce low-frequency noise by attenuating the low-frequency components below the low end of the frequency range of the recorded instrument, such as low-frequency leakage, rumbling of air conditioners, and the impact of microphone stands. For example, the lowest frequency of a violin is around 200Hz, so you can use a low-cut filter (or high-pass filter) to set it to 200Hz (if there is such a filter). This low-cut filter doesn't change the violin's tonal quality because the filtered frequencies are below the violin's lowest frequency. Likewise, bass drum components above 9kHz have little or no output, so filtering out bass drum components above 9kHz reduces cymbal leakage.

4.Compensate for the "Fletcher Monzon" effect. This is a phenomenon discovered by Fletcher Monzon that the human ear is less sensitive to bass and treble at low volume than at high volume. So when recording a very loud instrument and replaying it at a low volume, you will feel the lack of treble and bass. To compensate, boost low frequencies (around 100Hz) and high frequencies (around 4kHz) when recording for a loud rock band. The louder the band, the more boost is required.

5.Get a harmonious blend. If you mix two similar-sounding instruments, such as a lead guitar and a rhythm guitar, they tend to stick together, making it difficult to tell which guitar is leading. However, after different equalization of the two instruments, they can be clearly distinguished.

6. Compensate the placement of the microphone. Sometimes close miking is necessary to avoid background noises and leaks. But a close mic is only close to part of the instrument, which changes the timbre of the instrument, and using an equalizer can partially compensate for the timbre change. If the microphone is placed close to the sound hole of the acoustic guitar, the bass in the guitar sound is too heavy due to the strong low frequency of the guitar. At this time, the low frequency of the sound track can be attenuated on the equalizer to restore the natural sound balance. .
This equalization usage can save days spent trying to correct poor soundtracks recorded in live concert recordings. Because in concerts, the noise from the stage monitor will enter the microphone for both recording and sound reinforcement, so close-range pickup has to be used to prevent the sound of the monitor speakers from entering and returning. Due to this close mic placement, or due to pickup of monitor speaker leakage, an unnatural sound quality will result. In this case, using EQ is the only way to get those soundtracks available.

7."Remix" a single track. If a track contains two different instruments, sometimes you want to use EQ to change the mix on that track. Pan bias a track containing bass and synths. Use the LF EQ (Low Frequency Equalizer) to boost or cut the bass EQ without affecting the synth too much. Mixing with equalization is more effective when the two instruments are far apart in their frequency ranges.

8. Improve the sound quality balance of the entire mix. For a better sound, to make those songs within a collection more similar, or to make the sound of a collection closer to a commercial collection, the stereo mix of each song can be equalized during mastering.

Ideally, you should use the right microphone in the right place, and in a room with good sound, whenever you are recording. Then use the equalizer flexibly according to the radio situation. In short, the sound recorded with the EQ should be better than the sound without the EQ.

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