How to play a sound using Swift

Question

I would like to play a sound using Swift   My code worked in Swift 1 0 but now it doesn t work anymore in Swift 2 or newer   override func viewDidLoad       super viewDidLoad      let url NSURL   NSBundle mainBundle   URLForResource  soundName   withExtension   mp3       do        player   try AVAudioPlayer contentsOfURL  url  fileTypeHint  nil       catch        return        bgMusic numberOfLoops   1   bgMusic prepareToPlay      if  Data backgroundMenuPlayed    0       player play       Data backgroundMenuPlayed   1

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Tested with Swift 4 and iOS 12   import UIKit import AVFoundation class ViewController  UIViewController      var player  AVAudioPlayer      override func viewDidLoad             super viewDidLoad              func playTone number  Int            let path   Bundle main path forResource   note  number    ofType    wav            let url   URL fileURLWithPath   path          do               player   try AVAudioPlayer contentsOf  url              print   note  number                player play                     catch               print  error                        IBAction func notePressed   sender  UIButton            playTone number  sender tag

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import UIKit import AVFoundation  class ViewController  UIViewController       var player  AVAudioPlayer       override func viewDidLoad             super viewDidLoad               IBAction func notePressed   sender  UIButton             guard let url   Bundle main url forResource   note1   withExtension   wav   else   return            do               try AVAudioSession sharedInstance   setCategory  AVAudioSession Category playback   mode   default  options                  try AVAudioSession sharedInstance   setActive true                   The following line is required for the player to work on iOS 11  Change the file type accordingly               player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileType wav rawValue                  iOS 10 and earlier require the following line               player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileTypeMPEGLayer3                   guard let player   player else   return                player play              catch let error               print error localizedDescription

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Game style  file Sfx swift import AVFoundation  public let sfx   Sfx shared public final class Sfx  NSObject            static let shared   Sfx            var apCheer  AVAudioPlayer    nil          private override init             guard let s   Bundle main path forResource   quot cheer quot   ofType   quot mp3 quot   else               return  print  quot Sfx woe quot                     do               apComment   try AVAudioPlayer contentsOf  URL fileURLWithPath  s             catch               return  print  quot Sfx woe quot                            func cheer     apCheer  play         func plonk     apPlonk  play         func crack     apCrack  play        etc    Anywhere at all in code sfx explosion   sfx cheer

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import AVFoundation var player AVAudioPlayer   func Play        guard let path   Bundle main path forResource   KurdishSong   ofType   mp3  else return      let soundURl   URL fileURLWithPath  path      player   try  AVAudioPlayer contentsOf  soundURl      player prepareToPlay       player play         player pause         player stop

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import AVFoundation  import AudioToolbox  public final class MP3Player   NSObject               Singleton class     static let shared MP3Player   MP3Player            private var player  AVAudioPlayer    nil             Play only mp3 which are stored in the local     public func playLocalFile name String            guard let url   Bundle main url forResource  name  withExtension   quot mp3 quot   else   return            do               try AVAudioSession sharedInstance   setCategory AVAudioSession Category playback              try AVAudioSession sharedInstance   setActive true              player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileType mp3 rawValue              guard let player   player else   return                player play            catch let error              print error localizedDescription                     To call this function MP3Player shared playLocalFile name   quot JungleBook quot

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Swift 4  4 2 and 5  Play audio from URL and from your project  Local File   import UIKit import AVFoundation  class ViewController  UIViewController   var audioPlayer   AVPlayer   override func viewDidLoad             super viewDidLoad      call what ever function you want             private func playAudioFromURL             guard let url   URL string   https   geekanddummy com wp-content uploads 2014 01 coin-spin-light mp3   else               print  error to get the mp3 file               return                   do               audioPlayer   try AVPlayer url  url as URL            catch               print  audio file error                     audioPlayer  play              private func playAudioFromProject             guard let url   Bundle main url forResource   azanMakkah2016   withExtension   mp3   else               print  error to get the mp3 file               return                    do               audioPlayer   try AVPlayer url  url            catch               print  audio file error                     audioPlayer  play

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Swift 4  iOS 12 compatible  var player  AVAudioPlayer   let path   Bundle main path forResource   quot note  sender tag  quot   ofType   quot wav quot   let url   URL fileURLWithPath  path     quot  quot        do      player   try AVAudioPlayer contentsOf  url     player  play     catch let error      print error localizedDescription

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If code doesn t generate any error  but you don t hear sound - create the player as an instance      static var player  AVAudioPlayer    For me the first solution worked when I did this change

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Most preferably you might want to use AVFoundation   It provides all the essentials for working with audiovisual media      Update  Compatible with Swift 2  Swift 3 and Swift 4 as suggested by some of you in the comments      Swift 2 3  import AVFoundation  var player  AVAudioPlayer   func playSound         let url   NSBundle mainBundle   URLForResource  soundName   withExtension   mp3         do           player   try AVAudioPlayer contentsOfURL  url          guard let player   player else   return            player prepareToPlay           player play          catch let error as NSError           print error description              Swift 3  import AVFoundation  var player  AVAudioPlayer   func playSound         guard let url   Bundle main url forResource   soundName   withExtension   mp3   else   return        do           try AVAudioSession sharedInstance   setCategory AVAudioSessionCategoryPlayback          try AVAudioSession sharedInstance   setActive true           let player   try AVAudioPlayer contentsOf  url           player play          catch let error           print error localizedDescription              Swift 4  iOS 13 compatible   import AVFoundation  var player  AVAudioPlayer   func playSound         guard let url   Bundle main url forResource   soundName   withExtension   mp3   else   return        do           try AVAudioSession sharedInstance   setCategory  playback  mode   default                      try AVAudioSession sharedInstance   setActive true              The following line is required for the player to work on iOS 11  Change the file type accordingly           player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileType mp3 rawValue              iOS 10 and earlier require the following line          player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileTypeMPEGLayer3              guard let player   player else   return            player play          catch let error           print error localizedDescription               Make sure to change the name of your tune as well as the extension    The file needs to be properly imported  Project Build Phases   Copy Bundle Resources   You might want to place it in assets xcassets for   greater convenience    For short sound files you might want to go for non-compressed audio formats such as  wav since they have the best quality and a low cpu impact  The higher disk-space consumption should not be a big deal for short sound files  The longer the files are  you might want to go for a compressed format such as  mp3 etc  pp   Check the compatible audio formats of CoreAudio     Fun-fact  There are neat little libraries which make playing sounds even easier      For example  SwiftySound

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For Swift 3    import AVFoundation        must   define instance variable outside  because  play   will deallocate AVAudioPlayer      immediately and you won t hear a thing var player  AVAudioPlayer   func playSound         guard let url   Bundle main url forResource   soundName   withExtension   mp3   else           print  url not found           return            do               this codes for making this app ready to takeover the device audio         try AVAudioSession sharedInstance   setCategory AVAudioSessionCategoryPlayback          try AVAudioSession sharedInstance   setActive true               change fileTypeHint according to the type of your audio file  you can omit this           player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileTypeMPEGLayer3              no need for prepareToPlay because prepareToPlay is happen automatically when calling play           player  play         catch let error as NSError           print  error    error localizedDescription              The best practice for local assets is to put it inside assets xcassets and you load the file like this    func playSound         guard let url   Bundle main url forResource   soundName   withExtension   mp3   else           print  url not found           return            do               this codes for making this app ready to takeover the device audio         try AVAudioSession sharedInstance   setCategory AVAudioSessionCategoryPlayback          try AVAudioSession sharedInstance   setActive true               change fileTypeHint according to the type of your audio file  you can omit this               for iOS 11 onward  use           player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileType mp3 rawValue               else               player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileTypeMPEGLayer3              no need for prepareToPlay because prepareToPlay is happen automatically when calling play           player  play         catch let error as NSError           print  error    error localizedDescription

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This is basic code to find and play an audio file in Swift   Add your audio file to your Xcode and add the code below   import AVFoundation  class ViewController  UIViewController       var audioPlayer   AVAudioPlayer      declare globally     override func viewDidLoad             super viewDidLoad            guard let sound   Bundle main path forResource   audiofilename   ofType   mp3   else               print  Error getting the mp3 file from the main bundle                return                   do               audioPlayer   try AVAudioPlayer contentsOf  URL fileURLWithPath  sound             catch               print  Audio file error                      audioPlayer play               IBAction func notePressed   sender  UIButton       Button action         audioPlayer stop

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iOS 12 - Xcode 10 beta 6 - Swift 4 2  Use just 1 IBAction and point all the buttons to that 1 action   import AVFoundation  var player   AVAudioPlayer     IBAction func notePressed   sender  UIButton        print sender tag     testing button pressed tag     let path   Bundle main path forResource   note  sender tag    ofType    wav        let url   URL fileURLWithPath   path      do           player   try AVAudioPlayer contentsOf  url          player play         catch           print   There is an issue with this code

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First import these libraries  import AVFoundation  import AudioToolbox       set delegate like this      AVAudioPlayerDelegate   write this pretty code on button action or something action   guard let url   Bundle main url forResource   ring   withExtension   mp3   else   return       do           try AVAudioSession sharedInstance   setCategory AVAudioSessionCategoryPlayback          try AVAudioSession sharedInstance   setActive true          player   try AVAudioPlayer contentsOf  url  fileTypeHint  AVFileType mp3 rawValue          guard let player   player else   return            player play        catch let error          print error localizedDescription          100  working in my project and tested

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for Swift 5   quot AVFoundation quot  Simple code without error handling to play audio from your local path import AVFoundation var audio AVPlayer   func stopAlarm            To pause or stop audio in swift 5 audio stop   isn t working     audio pause      func playAlarm            need to declear local path as url     let url   Bundle main url forResource   quot Alarm quot   withExtension   quot mp3 quot          now use decleared path  url  to initialize the player     audio   AVPlayer init url  url          after initialization play audio its just like click on play button     audio play

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var soundEffect   AVAudioPlayer    func playSound   buttonTag   Int        let path   Bundle main path forResource   note  buttonTag    ofType    wav        let url   URL fileURLWithPath   path       do          soundEffect   try AVAudioPlayer contentsOf  url          soundEffect  play              to stop the spound  stop        catch          print   file could not be loaded or other error              works in swift 4 latest version  ButtonTag would be a tag on a button on your interface  Notes are in a folder in a folder parallel to Main storyboard  Every note is named as note1  note2  etc  ButtonTag is giving the number 1  2  etc from the button clicked which is passed as param

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Swift 3  import AVFoundation   var myAudio  AVAudioPlayer       let path   Bundle main path forResource   example   ofType   mp3        let url   URL fileURLWithPath  path  do       let sound   try AVAudioPlayer contentsOf  url      myAudio   sound     sound play     catch                If you want to stop the sound  you should use its stop  method if you try to stop a sound that doesn t exist your app will crash  so it s best to check that it exists   if myAudio    nil       myAudio stop       myAudio   nil

[ios] How to play a sound using Swift?

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