AeThex-Engine-Core/engine/doc/classes/AudioEffectSpectrumAnalyzer.xml
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XML

<?xml version="1.0" encoding="UTF-8" ?>
<class name="AudioEffectSpectrumAnalyzer" inherits="AudioEffect" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
<brief_description>
Audio effect that can be used for real-time audio visualizations.
</brief_description>
<description>
This audio effect does not affect sound output, but can be used for real-time audio visualizations.
This resource configures an [AudioEffectSpectrumAnalyzerInstance], which performs the actual analysis at runtime. An instance can be obtained with [method AudioServer.get_bus_effect_instance].
See also [AudioStreamGenerator] for procedurally generating sounds.
</description>
<tutorials>
<link title="Audio Spectrum Visualizer Demo">https://godotengine.org/asset-library/asset/2762</link>
</tutorials>
<members>
<member name="buffer_length" type="float" setter="set_buffer_length" getter="get_buffer_length" default="2.0">
The length of the buffer to keep (in seconds). Higher values keep data around for longer, but require more memory.
</member>
<member name="fft_size" type="int" setter="set_fft_size" getter="get_fft_size" enum="AudioEffectSpectrumAnalyzer.FFTSize" default="2">
The size of the [url=https://en.wikipedia.org/wiki/Fast_Fourier_transform]Fast Fourier transform[/url] 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.
</member>
</members>
<constants>
<constant name="FFT_SIZE_256" value="0" enum="FFTSize">
Use a buffer of 256 samples for the Fast Fourier transform. Lowest latency, but least stable over time.
</constant>
<constant name="FFT_SIZE_512" value="1" enum="FFTSize">
Use a buffer of 512 samples for the Fast Fourier transform. Low latency, but less stable over time.
</constant>
<constant name="FFT_SIZE_1024" value="2" enum="FFTSize">
Use a buffer of 1024 samples for the Fast Fourier transform. This is a compromise between latency and stability over time.
</constant>
<constant name="FFT_SIZE_2048" value="3" enum="FFTSize">
Use a buffer of 2048 samples for the Fast Fourier transform. High latency, but stable over time.
</constant>
<constant name="FFT_SIZE_4096" value="4" enum="FFTSize">
Use a buffer of 4096 samples for the Fast Fourier transform. Highest latency, but most stable over time.
</constant>
<constant name="FFT_SIZE_MAX" value="5" enum="FFTSize">
Represents the size of the [enum FFTSize] enum.
</constant>
</constants>
</class>