Properly adjusted EQ settings will give you a realistic and rich sound when listening to any genre of music. EQ settings for a perfect sound consist of selecting a ready-made preset and then manually adjusting it. It seems like nothing difficult, but it is difficult to select the optimal values for a person without music education and hearing, the process lasts for hours. It is important to take into account the musical genre you are adjusting to, the playback characteristics of a particular device, human perception and the surrounding environment.

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What is Car Equalizer and How to Use It

An equalizer is an application or device for selectively adjusting the amplitude of a signal based on its frequency characteristics. In simple terms, the principle of equalizers is to finely control the frequencies of an audio signal by amplifying or attenuating it in certain ranges. A distinction is made between amplifying, attenuating and combined (which includes all modern solutions) programs and plug-ins for working with the frequency characteristics of audio signals.

Hardware equalizers are mainly used in the recording phase by professional recording studios. The equipment adds character to the sound, highlighting the voice of the vocalist or the sound of a particular instrument at the right moments. Software solutions are used by amateurs and music lovers already at the stage of track mixing and giving compositions a specific sound, while listening to music.

If properly configured, the program will improve the acoustics in the listening space. The simplest example of using the equalizer is to select a pattern that suits the musical style you are listening to, and manually adjust - to amplify (attenuate) the sound in certain frequency ranges. Ranges, not specific frequencies. The graphic equalizer, for example, does not adjust a single frequency (30, 125, 500 Hz), but a range around a specified frequency, for example, 30±10 Hz. For high frequencies (HF), it expands to hundreds or even thousands of hertz, depending on the number of bands.

Here, you will have to rely more on your hearing and intuition. It is better not to touch the sliders for the sake of experiments. The presets were made by professionals, and it is unlikely that you will get a better sound. Most likely, on the contrary, the naturalness of the composition will be lost, except when making adjustments (lowering or raising the slider by a couple of positions) to suit your taste and acoustics.

What are EQ Bands and What are They For

Bandwidths are inherent to the graphic equalizer - a visualization option for dividing the frequency audible to the human ear (16-20 Hz...16-20 kHz) into bands. Each band corresponds to a specific frequency range of acoustic vibrations: 30, 250, 500 and 1, 4, 8, 16 kHz. Frequencies up to 2.4 kHz are given more attention, because the human ear is more sensitive to them, to low frequencies it is less susceptible, high frequencies play an even smaller role. As we age, the sensitivity of our hearing organs decreases, and the frequency range narrows on both sides.

The number of bands (sometimes graphic equalizers are made in the form of "knobs") of frequency bands determines the accuracy and fine-tuning of the sound. In theory, the use of a 16-band equalizer is more appropriate than a 6-band if used skillfully, but the former is difficult to set up. You will have to take longer to find the optimal values for your ears.

What Does Car Equalizer do?

The equalizer increases or decreases the amplitude (volume) of the acoustic vibrations in certain frequency ranges. Amplifying the sound below 70 Hz saturates the sound, in the range of 175-250 Hz - causes hum, the level of which depends on the degree of amplification.

At 80-250 Hz the human voice sounds, the female voice has a higher frequency - 160-250 Hz, the male voice has a lower frequency - 80-150 Hz. Keep this in mind if you want to emphasize the vocalist's voice or make speech intelligible in low-quality recordings or on cheap playback devices. A subwoofer is used to improve the sound of low frequencies (up to 300 Hz).

Optimal Tuning of the Equalizer in The Car for Better Sound

In terms of acoustics, the car interior is a bad place to listen to quality music. And the problem lies not only in the cost of the equipment used.

  1. The cabin is full of obstacles for the acoustic wave in the form of seat backs, the driver.
  2. The car is full of obstacles with different coefficients of absorption and reflection of acoustic waves. And the degree of absorption and reflection for different frequencies is different.
  3. The listener is displaced from the center of the acoustic space, located in the center of the cabin.
  4. The car is penetrated by extraneous sounds: engine, noise from under the wheels and mechanical parts of the vehicle, reducing the acoustic comfort.

The sound coming from the speakers in the car depends on dozens of factors, including the upholstery material of the seats and the interior, partially absorbing and reflecting acoustic waves. As a result, the bass is muffled by low-frequency extraneous noise, the tweeter and woofer receive peak values due to the vibration of the hard materials in the car (plastic, metal). By means of the equalizer it is necessary to "cut off" these peaks in the tweeter and woofer, to compensate for the lack of the middle - to make the wide frequency range audible.

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