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.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the AudioEffectFilter.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.

.. _class_AudioEffectFilter:

AudioEffectFilter
=================

**Inherits:** :ref:`AudioEffect<class_AudioEffect>` **<** :ref:`Resource<class_Resource>` **<** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`

**Inherited By:** :ref:`AudioEffectBandLimitFilter<class_AudioEffectBandLimitFilter>`, :ref:`AudioEffectBandPassFilter<class_AudioEffectBandPassFilter>`, :ref:`AudioEffectHighPassFilter<class_AudioEffectHighPassFilter>`, :ref:`AudioEffectHighShelfFilter<class_AudioEffectHighShelfFilter>`, :ref:`AudioEffectLowPassFilter<class_AudioEffectLowPassFilter>`, :ref:`AudioEffectLowShelfFilter<class_AudioEffectLowShelfFilter>`, :ref:`AudioEffectNotchFilter<class_AudioEffectNotchFilter>`

**Category:** Core

Brief Description
-----------------

Adds a filter to the audio bus.

Properties
----------

+--------------------------------------------------+--------------------------------------------------------------+--------+
| :ref:`float<class_float>`                        | :ref:`cutoff_hz<class_AudioEffectFilter_property_cutoff_hz>` | 2000.0 |
+--------------------------------------------------+--------------------------------------------------------------+--------+
| :ref:`FilterDB<enum_AudioEffectFilter_FilterDB>` | :ref:`db<class_AudioEffectFilter_property_db>`               | 0      |
+--------------------------------------------------+--------------------------------------------------------------+--------+
| :ref:`float<class_float>`                        | :ref:`gain<class_AudioEffectFilter_property_gain>`           | 1.0    |
+--------------------------------------------------+--------------------------------------------------------------+--------+
| :ref:`float<class_float>`                        | :ref:`resonance<class_AudioEffectFilter_property_resonance>` | 0.5    |
+--------------------------------------------------+--------------------------------------------------------------+--------+

Enumerations
------------

.. _enum_AudioEffectFilter_FilterDB:

.. _class_AudioEffectFilter_constant_FILTER_6DB:

.. _class_AudioEffectFilter_constant_FILTER_12DB:

.. _class_AudioEffectFilter_constant_FILTER_18DB:

.. _class_AudioEffectFilter_constant_FILTER_24DB:

enum **FilterDB**:

- **FILTER_6DB** = **0**

- **FILTER_12DB** = **1**

- **FILTER_18DB** = **2**

- **FILTER_24DB** = **3**

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

Allows frequencies other than the :ref:`cutoff_hz<class_AudioEffectFilter_property_cutoff_hz>` to pass.

Property Descriptions
---------------------

.. _class_AudioEffectFilter_property_cutoff_hz:

- :ref:`float<class_float>` **cutoff_hz**

+-----------+-------------------+
| *Default* | 2000.0            |
+-----------+-------------------+
| *Setter*  | set_cutoff(value) |
+-----------+-------------------+
| *Getter*  | get_cutoff()      |
+-----------+-------------------+

Threshold frequency for the filter, in Hz.

.. _class_AudioEffectFilter_property_db:

- :ref:`FilterDB<enum_AudioEffectFilter_FilterDB>` **db**

+-----------+---------------+
| *Default* | 0             |
+-----------+---------------+
| *Setter*  | set_db(value) |
+-----------+---------------+
| *Getter*  | get_db()      |
+-----------+---------------+

.. _class_AudioEffectFilter_property_gain:

- :ref:`float<class_float>` **gain**

+-----------+-----------------+
| *Default* | 1.0             |
+-----------+-----------------+
| *Setter*  | set_gain(value) |
+-----------+-----------------+
| *Getter*  | get_gain()      |
+-----------+-----------------+

Gain amount of the frequencies after the filter.

.. _class_AudioEffectFilter_property_resonance:

- :ref:`float<class_float>` **resonance**

+-----------+----------------------+
| *Default* | 0.5                  |
+-----------+----------------------+
| *Setter*  | set_resonance(value) |
+-----------+----------------------+
| *Getter*  | get_resonance()      |
+-----------+----------------------+

Amount of boost in the overtones near the cutoff frequency.