
let file = try AKAudioFile(readFileName: playgroundAudioFiles[0])
var player = AKPlayer(audioFile: file)
player.isLooping = true

let input = AKStereoOperation.input
let sporth = "\(input) 15 200 7.0 8.0 10000 315 0 1500 0 1 0 zitarev"

let effect = AKOperationEffect(player, sporth: sporth)

AudioKit.output = effect
try AudioKit.start()

player.play()