Instance Property


The ramp duration, in sample frames. Must be 0 for a non-ramped event; otherwise, must be greater than 0 for a ramped event.


var rampDurationSampleFrames: AUAudioFrameCount

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software