| Microsoft DirectX 8.1 (Visual Basic) |
The SetFrequency method sets the frequency at which the audio samples are played.
Syntax
object.SetFrequency(frequency As Long)
Parts
object
Resolves to a DirectSoundSecondaryBuffer8 object.
frequency
New frequency, in hertz, at which to play the audio samples. The value must be in the range DSBFREQUENCY_MIN (100) to DSBFREQUENCY_MAX (100,000).
If the value is DSBFREQUENCY_ORIGINAL, the frequency is reset to the default value in the buffer format. This format is specified in the DirectSound8.CreateSoundBuffer method.
Error Codes
If the method fails, an error is raised and Err.Number may be set to one of the following error values.
| DSERR_CONTROLUNAVAIL |
| DSERR_GENERIC |
| DSERR_INVALIDPARAM |
| DSERR_PRIOLEVELNEEDED |
Remarks
Increasing or decreasing the frequency changes the perceived pitch of the audio data. This method does not affect the format of the buffer.
See Also