**Swift 5, Xcode 14**
                        
                        
                        
                            import UIKit
                        
                            import AVFoundation
                        
                            
                        
                            class ViewController: UIViewController {
                        
                                
                        
                                var player: AVAudioPlayer!
                        
                                
                        
                                override func viewDidLoad() {
                        
                                    super.viewDidLoad()
                        
                                }
                        
                                
                        
                                @IBAction func keyPressed(_ sender: UIButton) {
                        
                                    playSound()
                        
                                }
                        
                                
                        
                                func playSound() {
                        
                                        let url = Bundle.main.url(forResource: "C", withExtension: "wav")
                        
                                        player = try! AVAudioPlayer(contentsOf: url!)
                        
                                        player.play()
                        
                                                
                        
                                    }
                        
                            }
                        
                
             
            
                
                    
                        **Swift 5, Xcode 14**
                        
                        
                        
                            import UIKit
                        
                            import AVFoundation
                        
                            
                        
                            class ViewController: UIViewController {
                        
                                
                        
                                var player: AVAudioPlayer!
                        
                                
                        
                                override func viewDidLoad() {
                        
                                    super.viewDidLoad()
                        
                                }
                        
                                
                        
                                @IBAction func keyPressed(_ sender: UIButton) {
                        
                                    playSound()
                        
                                }
                        
                                
                        
                                func playSound() {
                        
                                        let url = Bundle.main.url(forResource: "C", withExtension: "wav")
                        
                                        player = try! AVAudioPlayer(contentsOf: url!)
                        
                                        player.play()
                        
                                                
                        
                                    }
                        
                            }