setPlaybackSpeed
Sets the playback speed of the current audio file.
virtual int setPlaybackSpeed(int speed) = 0;
You need to call the open method before calling this method.
Parameters
- speed
- Playback speed. It is recommended to set a value between 30 and 400, defined as:
- 30: 0.3x the original speed.
- 100: Original speed.
- 400: 4x the original speed.
Return Values
- 0: Success.
- < 0: Failure.