godot-docs/classes/class_audioeffectlimiter.rst

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.. _class_AudioEffectLimiter:

AudioEffectLimiter
==================

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

Adds a soft-clip limiter audio effect to an Audio bus.

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

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

A limiter is similar to a compressor, but it's less flexible and designed to disallow sound going over a given dB threshold. Adding one in the Master bus is always recommended to reduce the effects of clipping.

Soft clipping starts to reduce the peaks a little below the threshold level and progressively increases its effect as the input level increases such that the threshold is never exceeded.

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

Tutorials
---------

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

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

Properties
----------

.. table::
   :widths: auto

   +---------------------------+---------------------------------------------------------------------------+----------+
   | :ref:`float<class_float>` | :ref:`ceiling_db<class_AudioEffectLimiter_property_ceiling_db>`           | ``-0.1`` |
   +---------------------------+---------------------------------------------------------------------------+----------+
   | :ref:`float<class_float>` | :ref:`soft_clip_db<class_AudioEffectLimiter_property_soft_clip_db>`       | ``2.0``  |
   +---------------------------+---------------------------------------------------------------------------+----------+
   | :ref:`float<class_float>` | :ref:`soft_clip_ratio<class_AudioEffectLimiter_property_soft_clip_ratio>` | ``10.0`` |
   +---------------------------+---------------------------------------------------------------------------+----------+
   | :ref:`float<class_float>` | :ref:`threshold_db<class_AudioEffectLimiter_property_threshold_db>`       | ``0.0``  |
   +---------------------------+---------------------------------------------------------------------------+----------+

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

----

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

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

.. _class_AudioEffectLimiter_property_ceiling_db:

.. rst-class:: classref-property

:ref:`float<class_float>` **ceiling_db** = ``-0.1``

.. rst-class:: classref-property-setget

- void **set_ceiling_db** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_ceiling_db** **(** **)**

The waveform's maximum allowed value, in decibels. Value can range from -20 to -0.1.

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

----

.. _class_AudioEffectLimiter_property_soft_clip_db:

.. rst-class:: classref-property

:ref:`float<class_float>` **soft_clip_db** = ``2.0``

.. rst-class:: classref-property-setget

- void **set_soft_clip_db** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_soft_clip_db** **(** **)**

Applies a gain to the limited waves, in decibels. Value can range from 0 to 6.

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

----

.. _class_AudioEffectLimiter_property_soft_clip_ratio:

.. rst-class:: classref-property

:ref:`float<class_float>` **soft_clip_ratio** = ``10.0``

.. rst-class:: classref-property-setget

- void **set_soft_clip_ratio** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_soft_clip_ratio** **(** **)**

.. container:: contribute

	There is currently no description for this property. Please help us by :ref:`contributing one <doc_updating_the_class_reference>`!

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

----

.. _class_AudioEffectLimiter_property_threshold_db:

.. rst-class:: classref-property

:ref:`float<class_float>` **threshold_db** = ``0.0``

.. rst-class:: classref-property-setget

- void **set_threshold_db** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_threshold_db** **(** **)**

Threshold from which the limiter begins to be active, in decibels. Value can range from -30 to 0.

.. |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.)`
.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`