kAudioQueueParam_VolumeRampTime
The number of seconds over which a volume change is ramped.
Declaration
var kAudioQueueParam_VolumeRampTime: AudioQueueParameterID { get }Discussion
For example, to fade from unity gain down to silence over the course of 1 second, set this parameter to 1 and then set the kAudioQueueParam_Volume parameter to 0.