BASS_BFX_AUTOWAH

BASS FX

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BASS_BFX_AUTOWAH structure

Used with BASS_FXGetParameters and BASS_FXSetParameters to retrieve and set the parameters of an auto wah effect.

typedef struct {
    float 
      fDryMix;
    float 
      fWetMix;
    float 
      fFeedback;
    float 
      fRate;
    float 
      fRange;
    float 
      fFreq;
    
      int lChannel; 
} 
      BASS_BFX_AUTOWAH;

Members

fDryMix	Dry (unaffected) signal mix	[-2....+2]
fWetMix	Wet (affected) signal mix	[-2....+2]
fFeedback	Output signal to feed back into input	[-1....+1]
fRate	Rate of sweep in cycles per second	[0<...<10]
fRange	Sweep range in octaves	[0<...<10]
fFreq	Base frequency of sweep range	[0<..1000]
lChannel	The affected channels using BASS_BFX_CHANxxx flags

Info
The effect implements the auto-wah by using 4-stage phaser effect which moves a peak in the frequency response up and down the frequency spectrum by amplitude of input signal.

The fDryMix is the volume of input signal & the fWetMix is the volume of delayed signal. The fFeedback sets feedback of auto wah (phaser). The fRate and fRange control how fast and far the frequency notches move. The fRate is the rate of sweep in cycles per second, fRange is the width of sweep in octaves. And the the fFreq is the base frequency of sweep.

Examples

	Dry	Wet	Feedback	Rate	Range	Freq
Slow Auto Wah	0.500	1.500	0.5	2.0	4.3	50.0
Fast Auto Wah	0.500	1.500	0.5	5.0	5.3	50.0
Hi Fast Auto Wah	0.500	1.500	0.5	5.0	4.3	500.0

See also
BASS_ChannelSetFX

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