godot/doc/classes/AudioEffectSpectrumAnalyzerInstance.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="AudioEffectSpectrumAnalyzerInstance" inherits="AudioEffectInstance" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
	<brief_description>
		Queryable instance of an [AudioEffectSpectrumAnalyzer].
	</brief_description>
	<description>
		The runtime part of an [AudioEffectSpectrumAnalyzer], which can be used to query the magnitude of a frequency range on its host bus.
		An instance of this class can be acquired with [method AudioServer.get_bus_effect_instance].
	</description>
	<tutorials>
		<link title="Audio Spectrum Visualizer Demo">https://godotengine.org/asset-library/asset/2762</link>
	</tutorials>
	<methods>
		<method name="get_magnitude_for_frequency_range" qualifiers="const">
			<return type="Vector2" />
			<param index="0" name="from_hz" type="float" />
			<param index="1" name="to_hz" type="float" />
			<param index="2" name="mode" type="int" enum="AudioEffectSpectrumAnalyzerInstance.MagnitudeMode" default="1" />
			<description>
				Returns the magnitude of the frequencies from [param from_hz] to [param to_hz] in linear energy as a Vector2. The [code]x[/code] component of the return value represents the left stereo channel, and [code]y[/code] represents the right channel.
				[param mode] determines how the frequency range will be processed. See [enum MagnitudeMode].
			</description>
		</method>
	</methods>
	<constants>
		<constant name="MAGNITUDE_AVERAGE" value="0" enum="MagnitudeMode">
			Use the average value across the frequency range as magnitude.
		</constant>
		<constant name="MAGNITUDE_MAX" value="1" enum="MagnitudeMode">
			Use the maximum value of the frequency range as magnitude.
		</constant>
	</constants>
</class>