godot-docs/classes/class_audioeffecteq.rst

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.. _class_AudioEffectEQ:

AudioEffectEQ
=============

**Inherits:** :ref:`AudioEffect<class_AudioEffect>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

**Inherited By:** :ref:`AudioEffectEQ10<class_AudioEffectEQ10>`, :ref:`AudioEffectEQ21<class_AudioEffectEQ21>`, :ref:`AudioEffectEQ6<class_AudioEffectEQ6>`

Base class for audio equalizers. Gives you control over frequencies.

Use it to create a custom equalizer if :ref:`AudioEffectEQ6<class_AudioEffectEQ6>`, :ref:`AudioEffectEQ10<class_AudioEffectEQ10>` or :ref:`AudioEffectEQ21<class_AudioEffectEQ21>` don't fit your needs.

.. rst-class:: classref-introduction-group

Description
-----------

AudioEffectEQ gives you control over frequencies. Use it to compensate for existing deficiencies in audio. AudioEffectEQs are useful on the Master bus to completely master a mix and give it more character. They are also useful when a game is run on a mobile device, to adjust the mix to that kind of speakers (it can be added but disabled when headphones are plugged).

.. rst-class:: classref-introduction-group

Tutorials
---------

- :doc:`Audio buses <../tutorials/audio/audio_buses>`

.. rst-class:: classref-reftable-group

Methods
-------

.. table::
   :widths: auto

   +---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`     | :ref:`get_band_count<class_AudioEffectEQ_method_get_band_count>` **(** **)** |const|                                                                 |
   +---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`float<class_float>` | :ref:`get_band_gain_db<class_AudioEffectEQ_method_get_band_gain_db>` **(** :ref:`int<class_int>` band_idx **)** |const|                              |
   +---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                      | :ref:`set_band_gain_db<class_AudioEffectEQ_method_set_band_gain_db>` **(** :ref:`int<class_int>` band_idx, :ref:`float<class_float>` volume_db **)** |
   +---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------+

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Method Descriptions
-------------------

.. _class_AudioEffectEQ_method_get_band_count:

.. rst-class:: classref-method

:ref:`int<class_int>` **get_band_count** **(** **)** |const|

Returns the number of bands of the equalizer.

.. rst-class:: classref-item-separator

----

.. _class_AudioEffectEQ_method_get_band_gain_db:

.. rst-class:: classref-method

:ref:`float<class_float>` **get_band_gain_db** **(** :ref:`int<class_int>` band_idx **)** |const|

Returns the band's gain at the specified index, in dB.

.. rst-class:: classref-item-separator

----

.. _class_AudioEffectEQ_method_set_band_gain_db:

.. rst-class:: classref-method

void **set_band_gain_db** **(** :ref:`int<class_int>` band_idx, :ref:`float<class_float>` volume_db **)**

Sets band's gain at the specified index, in dB.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`