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5.3 KiB
ReStructuredText
123 lines
5.3 KiB
ReStructuredText
:github_url: hide
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.. DO NOT EDIT THIS FILE!!!
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.. Generated automatically from Godot engine sources.
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.. Generator: https://github.com/godotengine/godot/tree/3.5/doc/tools/make_rst.py.
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.. XML source: https://github.com/godotengine/godot/tree/3.5/doc/classes/AudioEffectSpectrumAnalyzer.xml.
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.. _class_AudioEffectSpectrumAnalyzer:
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AudioEffectSpectrumAnalyzer
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===========================
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**Inherits:** :ref:`AudioEffect<class_AudioEffect>` **<** :ref:`Resource<class_Resource>` **<** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`
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Audio effect that can be used for real-time audio visualizations.
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Description
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-----------
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This audio effect does not affect sound output, but can be used for real-time audio visualizations.
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See also :ref:`AudioStreamGenerator<class_AudioStreamGenerator>` for procedurally generating sounds.
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Tutorials
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---------
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- `Audio Spectrum Demo <https://godotengine.org/asset-library/asset/528>`__
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- `Godot 3.2 will get new audio features <https://godotengine.org/article/godot-32-will-get-new-audio-features>`__
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Properties
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----------
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+------------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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| :ref:`float<class_float>` | :ref:`buffer_length<class_AudioEffectSpectrumAnalyzer_property_buffer_length>` | ``2.0`` |
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+------------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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| :ref:`FFT_Size<enum_AudioEffectSpectrumAnalyzer_FFT_Size>` | :ref:`fft_size<class_AudioEffectSpectrumAnalyzer_property_fft_size>` | ``2`` |
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+------------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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| :ref:`float<class_float>` | :ref:`tap_back_pos<class_AudioEffectSpectrumAnalyzer_property_tap_back_pos>` | ``0.01`` |
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+------------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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Enumerations
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------------
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.. _enum_AudioEffectSpectrumAnalyzer_FFT_Size:
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_256:
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_512:
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_1024:
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_2048:
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_4096:
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_MAX:
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enum **FFT_Size**:
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- **FFT_SIZE_256** = **0** --- Use a buffer of 256 samples for the Fast Fourier transform. Lowest latency, but least stable over time.
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- **FFT_SIZE_512** = **1** --- Use a buffer of 512 samples for the Fast Fourier transform. Low latency, but less stable over time.
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- **FFT_SIZE_1024** = **2** --- Use a buffer of 1024 samples for the Fast Fourier transform. This is a compromise between latency and stability over time.
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- **FFT_SIZE_2048** = **3** --- Use a buffer of 2048 samples for the Fast Fourier transform. High latency, but stable over time.
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- **FFT_SIZE_4096** = **4** --- Use a buffer of 4096 samples for the Fast Fourier transform. Highest latency, but most stable over time.
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- **FFT_SIZE_MAX** = **5** --- Represents the size of the :ref:`FFT_Size<enum_AudioEffectSpectrumAnalyzer_FFT_Size>` enum.
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Property Descriptions
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---------------------
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.. _class_AudioEffectSpectrumAnalyzer_property_buffer_length:
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- :ref:`float<class_float>` **buffer_length**
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+-----------+--------------------------+
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| *Default* | ``2.0`` |
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+-----------+--------------------------+
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| *Setter* | set_buffer_length(value) |
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+-----------+--------------------------+
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| *Getter* | get_buffer_length() |
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+-----------+--------------------------+
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The length of the buffer to keep (in seconds). Higher values keep data around for longer, but require more memory.
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----
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.. _class_AudioEffectSpectrumAnalyzer_property_fft_size:
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- :ref:`FFT_Size<enum_AudioEffectSpectrumAnalyzer_FFT_Size>` **fft_size**
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+-----------+---------------------+
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| *Default* | ``2`` |
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+-----------+---------------------+
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| *Setter* | set_fft_size(value) |
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+-----------+---------------------+
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| *Getter* | get_fft_size() |
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+-----------+---------------------+
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The size of the `Fast Fourier transform <https://en.wikipedia.org/wiki/Fast_Fourier_transform>`__ buffer. Higher values smooth out the spectrum analysis over time, but have greater latency. The effects of this higher latency are especially noticeable with sudden amplitude changes.
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----
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.. _class_AudioEffectSpectrumAnalyzer_property_tap_back_pos:
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- :ref:`float<class_float>` **tap_back_pos**
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+-----------+-------------------------+
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| *Default* | ``0.01`` |
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+-----------+-------------------------+
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| *Setter* | set_tap_back_pos(value) |
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+-----------+-------------------------+
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| *Getter* | get_tap_back_pos() |
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+-----------+-------------------------+
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.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
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.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
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.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
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