Edit: добавлен новый код внизу.
Я довольно новичок в кодировании, поэтому я начал с создания приложения для деки.Мне удалось использовать команду «rate» для замедления или ускорения звука, но теперь я тоже хочу изменить высоту звука.В идеале я хотел бы иметь два переключателя.Тот, который ускоряет звук и увеличивает высоту тона, тот, который замедляет и понижает, и если они оба выключены, он играет нормально.Ниже мой код, который работает для всего, кроме изменения высоты тона.Любой вклад с благодарностью.Для справки, sass медленный, чип быстрый.
import UIKit
import AVFoundation
var Sounder1 = AVAudioPlayer()
var Sounder2 = AVAudioPlayer()
let sassFloat: Float = 0.5
let myInt = Int(sassFloat)
let chipFloat: Float = 3.0
let myInt2 = Int(chipFloat)
class ViewController: UIViewController {
@IBOutlet weak var sassSwitch: UISwitch!
@IBOutlet weak var chipSwitch: UISwitch!
override func viewDidLoad() {
super.viewDidLoad()
do {
Sounder1 = try AVAudioPlayer(contentsOf: URL.init(fileURLWithPath: Bundle.main.path(forResource: "Sound1", ofType: "mp3")!))
Sounder1.prepareToPlay()
Sounder1.enableRate = true
}catch{
}
do {
Sounder2 = try AVAudioPlayer(contentsOf: URL.init(fileURLWithPath: Bundle.main.path(forResource: "Sound2", ofType: "wav")!))
Sounder2.prepareToPlay()
Sounder2.enableRate = true
}catch{
}
// Do any additional setup after loading the view, typically from a nib.
}
@IBAction func sassAction(_ sender: UISwitch) {
chipSwitch.setOn(false, animated: true)
}
@IBAction func chipAction(_ sender: UISwitch) {
sassSwitch.setOn(false, animated: true)
}
@IBAction func play(_ sender: Any) {
if sassSwitch.isOn {
Sounder1.rate = sassFloat
Sounder1.play()
} else if chipSwitch.isOn {
Sounder1.rate = chipFloat
Sounder1.play()
} else {
Sounder1.rate = 1.0
Sounder1.play()
}
}
@IBAction func play2(_ sender: Any) {
if sassSwitch.isOn {
Sounder2.rate = sassFloat
Sounder2.play()
} else if chipSwitch.isOn {
Sounder2.rate = chipFloat
Sounder2.play()
} else {
Sounder2.rate = 1.0
Sounder2.play()
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Это новый код, который я придумал на основе предложений @ericl.Мне все еще нужно reset() audioEngine, но у меня также было несколько вопросов.1) Будет ли оператор if else if else действительно работать в этой ситуации?2) Где я могу добавить оператор reset().3) Нужно ли отсоединять узел после каждого звука?Или просто сбросить?
class ViewController: UIViewController {
@IBOutlet weak var sassSwitch: UISwitch!
@IBOutlet weak var chipSwitch: UISwitch!
@IBAction func sassAction(_ sender: UISwitch) {
chipSwitch.setOn(false, animated: true)
}
@IBAction func chipSwitch(_ sender: UISwitch) {
sassSwitch.setOn(false, animated: true)
}
///Playback Engine
private let audioEngine = AVAudioEngine()
///Player's Nodes
private let pitchPlayer = AVAudioPlayerNode()
private let timePitch = AVAudioUnitTimePitch()
///Audio Files to be played
private var audioFile1 = AVAudioFile()
private var audioFile2 = AVAudioFile()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
if let filePath = Bundle.main.path(forResource: "PeteNope", ofType:
"mp3") {
let filePathURL = URL(fileURLWithPath: filePath)
setPlayerFile(filePathURL)
}
if let filePath2 = Bundle.main.path(forResource: "Law_WOW", ofType:
"mp3") {
let filePath2URL = URL(fileURLWithPath: filePath2)
setPlayerFile2(filePath2URL)
}
}
private func setPlayerFile(_ fileURL: URL) {
do {
let file = try AVAudioFile(forReading: fileURL)
self.audioFile1 = file
} catch {
fatalError("Could not create AVAudioFile instance. error: \(error).")
}
}
private func setPlayerFile2(_ fileURL: URL) {
do {
let file = try AVAudioFile(forReading: fileURL)
self.audioFile2 = file
} catch {
fatalError("Could not create AVAudioFile instance. error: \(error).")
}
}
@IBAction func sound1Play(_ sender: UIButton) {
if sassSwitch.isOn {
timePitch.pitch = -300
timePitch.rate = 0.5
audioEngine.attach(pitchPlayer)
audioEngine.attach(timePitch)
audioEngine.connect(pitchPlayer, to: timePitch, format: audioFile1.processingFormat)
audioEngine.connect(timePitch, to: audioEngine.outputNode, format: audioFile1.processingFormat)
pitchPlayer.scheduleFile(audioFile1, at: nil, completionHandler: nil)
// Start the engine.
do {
try audioEngine.start()
} catch {
fatalError("Could not start engine. error: \(error).")
}
pitchPlayer.play()
} else if chipSwitch.isOn {
timePitch.pitch = +500
timePitch.rate = 2.0
audioEngine.attach(pitchPlayer)
audioEngine.attach(timePitch)
audioEngine.connect(pitchPlayer, to: timePitch, format: audioFile1.processingFormat)
audioEngine.connect(timePitch, to: audioEngine.outputNode, format: audioFile1.processingFormat)
pitchPlayer.scheduleFile(audioFile1, at: nil, completionHandler: nil)
// Start the engine.
do {
try audioEngine.start()
} catch {
fatalError("Could not start engine. error: \(error).")
}
pitchPlayer.play()
} else {
timePitch.pitch = +0
timePitch.rate = 1.0
audioEngine.attach(pitchPlayer)
audioEngine.attach(timePitch)
audioEngine.connect(pitchPlayer, to: timePitch, format: audioFile1.processingFormat)
audioEngine.connect(timePitch, to: audioEngine.outputNode, format: audioFile1.processingFormat)
pitchPlayer.scheduleFile(audioFile1, at: nil, completionHandler: nil)
// Start the engine.
do {
try audioEngine.start()
} catch {
fatalError("Could not start engine. error: \(error).")
}
pitchPlayer.play()
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}