DirectSoundBuffer.SetFrequency

The DirectSoundBuffer.SetFrequency method sets the frequency at which the audio samples are played.

object.SetFrequency(frequency As Long)

Parameters

object

Object expression that resolves to a DirectSoundBuffer object.

frequency

New frequency, in hertz (Hz), at which to play the audio samples. The value must be in the range DSBFREQUENCY_MIN to DSBFREQUENCY_MAX. These values are currently defined as 100 and 100,000 respectively.

If the value is DSBFREQUENCY_ORIGINAL, the frequency is reset to the default value in the current buffer format. This format is specified in the DirectSound.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:

Remarks

Increasing or decreasing the frequency changes the perceived pitch of the audio data. This method does not affect the format of the buffer.

This method is not valid for primary sound buffers.

See Also

DirectSoundBuffer, DirectSound.CreateSoundBuffer, DirectSoundBuffer.GetFrequency, DirectSoundBuffer.Play, DirectSoundBuffer.SetFormat