29 lines
2 KiB
XML
29 lines
2 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="AudioEffectLimiter" inherits="AudioEffect" deprecated="Use [AudioEffectHardLimiter] instead." xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
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<brief_description>
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Adds a soft-clip limiter audio effect to an audio bus.
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</brief_description>
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<description>
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A "limiter" is an audio effect designed to stop audio signals from exceeding a specified volume threshold level, and usually works by decreasing the volume or soft-clipping the audio. Adding one in the Master bus is always recommended to prevent clipping when the volume goes above 0 dB.
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Soft clipping starts to decrease the peaks a little below the volume threshold level and progressively increases its effect as the input volume increases such that the threshold level is never exceeded.
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If hard clipping is desired, consider [constant AudioEffectDistortion.MODE_CLIP].
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</description>
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<tutorials>
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<link title="Audio buses">$DOCS_URL/tutorials/audio/audio_buses.html</link>
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<link title="Audio effects">$DOCS_URL/tutorials/audio/audio_effects.html</link>
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</tutorials>
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<members>
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<member name="ceiling_db" type="float" setter="set_ceiling_db" getter="get_ceiling_db" default="-0.1">
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The waveform's maximum allowed value, in dB. Value can range from -20 to -0.1.
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</member>
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<member name="soft_clip_db" type="float" setter="set_soft_clip_db" getter="get_soft_clip_db" default="2.0">
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Modifies the volume of the limited waves, in dB. Value can range from 0 to 6.
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</member>
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<member name="soft_clip_ratio" type="float" setter="set_soft_clip_ratio" getter="get_soft_clip_ratio" default="10.0">
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This property has no effect on the audio. Use [AudioEffectHardLimiter] instead, as this Limiter effect is deprecated.
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</member>
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<member name="threshold_db" type="float" setter="set_threshold_db" getter="get_threshold_db" default="0.0">
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The volume threshold level from which the limiter begins to be active, in dB. Value can range from -30 to 0.
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</member>
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</members>
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</class>
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