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Effects.EqualizerBandAdd method

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Adds a new band to the equalizer.


For further details about defining the equalizer settings refer to the How to define an equalizer section.

For further details about methods related to the use of special effects refer to the Effects COM object.





[Visual Basic]

control.Effects.EqualizerBandAdd (

fFrequency as Single,

fBandWidth as Single,

fGain as Single

) as Single



float control.Effects.EqualizerBandAdd (

float fFrequency,

float fBandWidth,

float fGain









Frequency of the band expressed in Hertz.

A band's frequency cannot exceed one-third of the frequency of the sound under editing so, if you have loaded a sound with a frequency of 44100 Hz, the maximum allowed band's frequency will be 14700 Hz (14700 * 3 = 44100); in order to reach a band's frequency of 16000 Hz, you must load sounds whose frequency is at least 48000 Hz.


Width of the band expressed in semi-tones


Gain of the band expressed in dB



Return value






Negative value

An error occurred (see the LastError property for further error details)

enumErrorCodes.ERR_NOERROR (0)

The method call was successful.