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AudioEffectBandLimitFilter
继承: AudioEffectFilter < AudioEffect < Resource < RefCounted < Object
为音频总线添加一个带限滤波器。
描述
带限(Band-limit)滤波器会对 AudioEffectFilter.cutoff_hz 处的频率进行衰减,同时允许该频率阈值之外的频率不受影响地通过。它是 AudioEffectNotchFilter(陷波滤波器)的一个更宽、更弱的版本,并且与 AudioEffectBandPassFilter(带通滤波器)的作用正好相反。
这种滤波器可以用来为其他声音在该频率上腾出更多空间。