Work in progress

The content of this page was not yet updated for Godot 4.2 and may be outdated. If you know how to improve this page or you can confirm that it's up to date, feel free to open a pull request.

Audio effects¶

Godot includes several audio effects that can be added to an audio bus to alter every sound file that goes through that bus.

Спробуйте їх все, щоб отримати уявлення про те, як вони змінюють звук. Нижче наведено короткий опис доступних ефектів:

Підсилення сигналу¶

Amplify changes the volume of the signal. Some care needs to be taken, though: setting the level too high can make the sound digitally clip, which can produce unpleasant crackles and pops.

BandLimit та BandPass¶

Це резонансні фільтри, які блокують частоти навколо точки Cutoff (відсікання). BandPass можна використовувати для імітації звуку, що проходить через стару телефонну лінію, або мегафон. Модуляція частоти BandPass може імітувати звук педалі гітари wah-wah, згадайте гітару Джимі Хендрікса в Voodoo Child (Slight Return).

Захоплення¶

Ефект Capture (захоплення) копіює звукові кадри звукової шини, на якій він перебуває, у внутрішній буфер. Це може бути використано для захоплення даних з мікрофона, або для передачі звуку по мережі в режимі реального часу.

Хорова¶

As the name of the effect implies, the Chorus effect makes a single audio sample sound like an entire chorus. It does this by duplicating a signal and very slightly altering the timing and pitch of each duplicate, and varying that over time via an LFO (low frequency oscillator). The duplicate(s) are then mixed back together with the original signal, producing a lush, wide, and large sound. Although chorus is traditionally used for voices, it can be desirable with almost any type of sound.

Компресор¶

A dynamic range compressor automatically attenuates (ducks) the level of the incoming signal when its amplitude exceeds a certain threshold. The level of attenuation applied is proportional to how far the incoming audio exceeds the threshold. The compressor's Ratio parameter controls the degree of attenuation. One of the main uses of a compressor is to reduce the dynamic range of signals with very loud and quiet parts. Reducing the dynamic range of a signal can make it fit more comfortably in a mix.

Компресор має багато застосувань. Наприклад:

It can be used in the Master bus to compress the whole output prior to being hit by a limiter, making the effect of the limiter much more subtle.
Він може бути використаний в голосових каналах, щоб переконатися, що вони звучать якомога рівніше.
It can be sidechained by another sound source. This means it can reduce the sound level of one signal using the level of another audio bus for threshold detection. This technique is very common in video game mixing to "duck" the level of music or sound effects when in-game or multiplayer voices need to be fully audible.
Він може підкреслити перехідні процеси, використовуючи повільнішу дію. Це може зробити звукові ефекти більш проникливими.

Примітка

If your goal is to prevent a signal from exceeding a given amplitude altogether, rather than to reduce the dynamic range of the signal, a limiter is likely a better choice than a compressor for this purpose. However, applying compression before a limiter is still good practice.

Затримка¶

Digital delay essentially duplicates a signal and repeats it at a specified speed with a volume level that decays for each repeat. Delay is great for simulating the acoustic space of a canyon or large room, where sound bounces have a lot of delay between their repeats. This is in contrast to reverb, which has a more natural and blurred sound to it. Using this in conjunction with reverb can create very natural sounding environments!

Викривлення¶

Makes the sound distorted. Godot offers several types of distortion:

Overdrive sounds like a guitar distortion pedal or megaphone. Sounds distorted with this sound like they're coming through a low-quality speaker or device.
Tan sounds like another interesting flavor of overdrive.
Bit crushing clamps the amplitude of the signal, making it sound flat and crunchy.

All three types of distortion can add higher frequency sounds to an original sound, making it stand out better in a mix.

EQ¶

EQ is what all other equalizers inherit from. It can be extended with Custom scripts to create an equalizer with a custom number of bands.

EQ6, EQ10, EQ21¶

Godot provides three equalizers with different numbers of bands, which are represented in the title (6, 10, and 21 bands, respectively). An equalizer on the Master bus can be useful for cutting low and high frequencies that the device's speakers can't reproduce well. For example, phone or tablet speakers usually don't reproduce low frequency sounds well, and could make a limiter or compressor attenuate sounds that aren't even audible to the user anyway.

Note: The equalizer effect can be disabled when headphones are plugged in, giving the user the best of both worlds.

Фільтр¶

Фільтр - це те, від чого успадковуються всі інші фільтри і не повинен використовуватися безпосередньо.

HighPassFilter¶

Скорочує частоти нижче певної частоти Cutoff (відсікання). HighPassFilter використовується для зменшення баса в сигналі.

Фільтр Hig hShelf¶

Зменшує всі частоти вище певної частоти відсікання Cutoff.

Обмежувач¶

A limiter is similar to a compressor, but it's less flexible and designed to prevent a signal's amplitude exceeding a given dB threshold. Adding a limiter to the final point of the Master bus is good practice, as it offers an easy safeguard against clipping.

LowPassFilter¶

Скорочує частоти вище певної частоти відсікання Cutoff, а також може резонувати (збільшувати частоти, близькі до частоти відсікання Cutoff). Фільтри низького проходу можна використовувати для імітації «приглушеного» звуку. Наприклад, підводні звуки, заблоковані стінами, або далекі звуки.

LowShelfFilter¶

Зменшує всі частоти нижче певної частоти відсікання Cutoff.

Notch фільтр¶

На відміну від BandPassFilter він видаляє смугу звуку з частотного спектру на заданій частотній частоті Cutoff.

Каструлі¶

The Panner allows the stereo balance of a signal to be adjusted between the left and right channels. Headphones are recommended when configuring in this effect.

Фазер¶

This effect is formed by de-phasing two duplicates of the same sound so they cancel each other out in an interesting way. Phaser produces a pleasant whooshing sound that moves back and forth through the audio spectrum, and can be a great way to create sci-fi effects or Darth Vader-like voices.

PitchShift (Зсув висоти тону)¶

This effect allows the adjustment of the signal's pitch independently of its speed. All frequencies can be increased/decreased with minimal effect on transients. PitchShift can be useful to create unusually high or deep voices. Do note that altering pitch can sound unnatural when pushed outside of a narrow window.

Запис¶

Ефект запису дозволяє користувачеві записувати звук з мікрофона.

Відлуння¶

Reverb simulates rooms of different sizes. It has adjustable parameters that can be tweaked to obtain the sound of a specific room. Reverb is commonly outputted from Area3Ds (see Reverb buses), or to apply a "chamber" feel to all sounds.

СпектроАналізатор¶

This effect doesn't alter audio, instead, you add this effect to buses you want a spectrum analysis of. This would typically be used for audio visualization. Visualizing voices can be a great way to draw attention to them without just increasing their volume. A demo project using this can be found here.

Покращення стерео¶

This effect uses a few algorithms to enhance a signal's stereo width.