AudioEffectFilter

继承： AudioEffect < Resource < RefCounted < Object

派生： AudioEffectBandLimitFilter, AudioEffectBandPassFilter, AudioEffectHighPassFilter, AudioEffectHighShelfFilter, AudioEffectLowPassFilter, AudioEffectLowShelfFilter, AudioEffectNotchFilter

Adds a filter to the audio bus.

描述

Allows frequencies other than the cutoff_hz to pass.

属性
floatcutoff_hz
FilterDBdb
floatgain
floatresonance

枚举

enum FilterDB:

FilterDB FILTER_6DB = 0

Cutting off at 6dB per octave.

FilterDB FILTER_12DB = 1

Cutting off at 12dB per octave.

FilterDB FILTER_18DB = 2

Cutting off at 18dB per octave.

FilterDB FILTER_24DB = 3

Cutting off at 24dB per octave.

属性说明

float cutoff_hz = 2000.0

  • void set_cutoff ( value: float )
  • float get_cutoff ( )

Threshold frequency for the filter, in Hz.

FilterDB db = 0

Steepness of the cutoff curve in dB per octave, also known as the order of the filter. Higher orders have a more aggressive cutoff.

float gain = 1.0

  • void set_gain ( value: float )
  • float get_gain ( )

Gain amount of the frequencies after the filter.

float resonance = 0.5

  • void set_resonance ( value: float )
  • float get_resonance ( )

Amount of boost in the frequency range near the cutoff frequency.

1

本方法通常需要用户覆盖才能生效。

2

本方法无副作用，不会修改该实例的任何成员变量。

3

本方法除了能接受在此处描述的参数外，还能够继续接受任意数量的参数。

4

本方法用于构造某个类型。

5

调用本方法无需实例，可直接使用类名进行调用。

6

本方法描述的是使用本类型作为左操作数的有效运算符。

7

这个值是由下列位标志构成位掩码的整数。

8

无返回值。