├── README.md ├── VDSTextToSpeech.xcodeproj ├── project.pbxproj ├── project.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist └── xcuserdata │ └── vimaldas.xcuserdatad │ ├── xcdebugger │ └── Breakpoints_v2.xcbkptlist │ └── xcschemes │ └── xcschememanagement.plist └── VDSTextToSpeech ├── AppDelegate.swift ├── Assets.xcassets ├── AppIcon.appiconset │ └── Contents.json └── Contents.json ├── Base.lproj ├── LaunchScreen.storyboard └── Main.storyboard ├── Info.plist ├── VDSTextToSpeech.swift └── ViewController.swift /README.md: -------------------------------------------------------------------------------- 1 | # VDSTextToSpeech 2 | 3 | To use VDSTextToSpeech, follow the simple steps 4 | 5 | 1. drag VDSTextToSpeech to your project. 6 | 7 | 2. create a variable for easy access to VDSTextToSpeech 8 | 9 | let vds = VDSTextToSpeech.shared 10 | 11 | 3. give the message to be read. 12 | 13 | vds.text = "welcome to VDS Text to speech module. Hope you enjoy" 14 | 15 | 4. speak() : to make VDSTextToSpeech read the message 16 | 17 | stopSpeech() : to stop reading 18 | 19 | pauseSpeech() : to pause reading (to resume call speak() again) 20 | 21 | 8. to get callbacks and progress, add VDSTextToSpeech delegate to class 22 | eg: 23 | 24 | class ViewController: UIViewController,VDSSpeechSynthesizerDelegate { 25 | 26 | vds.speechSynthesizerDelegate = self 27 | 28 | 29 | //MARK:- VDSSpeechSynthesizerDelegate 30 | func speechSynthesizerProgress(_ progress: Float, attributedText: NSMutableAttributedString) { 31 | messageLabel.attributedText = attributedText 32 | progressView.progress = progress 33 | } 34 | 35 | func speechSynthesizerDidStart() { 36 | print("speechSynthesizerDidStart") 37 | } 38 | 39 | func speechSynthesizerDidFinish() { 40 | print("speechSynthesizerDidFinish") 41 | } 42 | 43 | 44 | 45 | -------------------------------------------------------------------------------- /VDSTextToSpeech.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | @UIApplicationMain 12 | class AppDelegate: UIResponder, UIApplicationDelegate { 13 | 14 | var window: UIWindow? 15 | 16 | 17 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { 18 | // Override point for customization after application launch. 19 | return true 20 | } 21 | 22 | func applicationWillResignActive(_ application: UIApplication) { 23 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 24 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 25 | } 26 | 27 | func applicationDidEnterBackground(_ application: UIApplication) { 28 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 29 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 30 | } 31 | 32 | func applicationWillEnterForeground(_ application: UIApplication) { 33 | // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. 34 | } 35 | 36 | func applicationDidBecomeActive(_ application: UIApplication) { 37 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 38 | } 39 | 40 | func applicationWillTerminate(_ application: UIApplication) { 41 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 42 | } 43 | 44 | 45 | } 46 | 47 | -------------------------------------------------------------------------------- /VDSTextToSpeech/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "20x20", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "20x20", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "29x29", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "29x29", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "40x40", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "40x40", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "size" : "60x60", 36 | "scale" : "2x" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "size" : "60x60", 41 | "scale" : "3x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "20x20", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "20x20", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "29x29", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "29x29", 61 | "scale" : "2x" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "size" : "40x40", 66 | "scale" : "1x" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "size" : "40x40", 71 | "scale" : "2x" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "size" : "76x76", 76 | "scale" : "1x" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "size" : "76x76", 81 | "scale" : "2x" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "size" : "83.5x83.5", 86 | "scale" : "2x" 87 | }, 88 | { 89 | "idiom" : "ios-marketing", 90 | "size" : "1024x1024", 91 | "scale" : "1x" 92 | } 93 | ], 94 | "info" : { 95 | "version" : 1, 96 | "author" : "xcode" 97 | } 98 | } -------------------------------------------------------------------------------- /VDSTextToSpeech/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /VDSTextToSpeech/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /VDSTextToSpeech/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | -------------------------------------------------------------------------------- /VDSTextToSpeech/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UILaunchStoryboardName 24 | LaunchScreen 25 | UIMainStoryboardFile 26 | Main 27 | UIRequiredDeviceCapabilities 28 | 29 | armv7 30 | 31 | UISupportedInterfaceOrientations 32 | 33 | UIInterfaceOrientationPortrait 34 | UIInterfaceOrientationLandscapeLeft 35 | UIInterfaceOrientationLandscapeRight 36 | 37 | UISupportedInterfaceOrientations~ipad 38 | 39 | UIInterfaceOrientationPortrait 40 | UIInterfaceOrientationPortraitUpsideDown 41 | UIInterfaceOrientationLandscapeLeft 42 | UIInterfaceOrientationLandscapeRight 43 | 44 | 45 | 46 | -------------------------------------------------------------------------------- /VDSTextToSpeech/VDSTextToSpeech.swift: -------------------------------------------------------------------------------- 1 | // 2 | // VDSTextToSpeech.swift 3 | // VDSTextToSpeech 4 | // 5 | // Created by Vimal Das on 22/10/18. 6 | // Copyright © 2018 Vimal Das. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | import Speech 11 | 12 | protocol VDSSpeechSynthesizerDelegate: class { 13 | func speechSynthesizerDidStart() 14 | func speechSynthesizerDidFinish() 15 | func speechSynthesizerProgress(_ progress:Float, attributedText:NSMutableAttributedString) 16 | } 17 | class VDSTextToSpeech: NSObject, AVSpeechSynthesizerDelegate { 18 | 19 | static let shared = VDSTextToSpeech() 20 | 21 | weak var speechSynthesizerDelegate:VDSSpeechSynthesizerDelegate? 22 | 23 | var fontColor:UIColor = UIColor.orange 24 | 25 | //MARK:- Speech Synthesizer Variables 26 | private var speechSynthesizer: AVSpeechSynthesizer! 27 | var rate: Float = 0.0 28 | var pitch: Float = 0.0 29 | var volume: Float = 0.0 30 | var totalUtterances: Int! = 0 31 | var currentUtterance: Int! = 0 32 | var totalTextLength: Int = 0 33 | var spokenTextLengths: Int = 0 34 | var preferredVoiceLanguageCode: String! 35 | private var previousSelectedRange: NSRange! 36 | var text:String = "" { 37 | didSet{ 38 | attributedText = NSMutableAttributedString(string: text) 39 | } 40 | } 41 | private var attributedText:NSMutableAttributedString = NSMutableAttributedString(string: "") 42 | 43 | //MARK:- Main Funcs 44 | private override init() { 45 | super.init() 46 | 47 | speechSynthesizer = AVSpeechSynthesizer() 48 | 49 | setupTextToSpeech() 50 | 51 | } 52 | 53 | 54 | // MARK:- AVSpeechSynthesizer 55 | private func setupTextToSpeech() { 56 | 57 | if !loadSettings() { 58 | registerDefaultSettings() 59 | } 60 | 61 | speechSynthesizer.delegate = self 62 | 63 | setInitialFontAttribute() 64 | } 65 | 66 | private func registerDefaultSettings() { 67 | rate = AVSpeechUtteranceDefaultSpeechRate 68 | pitch = 1.0 69 | volume = 1.0 70 | 71 | let defaultSpeechSettings = ["rate": rate, "pitch": pitch, "volume": volume] 72 | 73 | UserDefaults.standard.register(defaults: defaultSpeechSettings) 74 | } 75 | 76 | 77 | private func loadSettings() -> Bool { 78 | let userDefaults = UserDefaults.standard as UserDefaults 79 | 80 | if let theRate: Float = userDefaults.value(forKey: "rate") as? Float { 81 | rate = theRate 82 | pitch = userDefaults.value(forKey:"pitch") as! Float 83 | volume = userDefaults.value(forKey:"volume") as! Float 84 | 85 | return true 86 | } 87 | 88 | return false 89 | } 90 | 91 | func setInitialFontAttribute() { 92 | let rangeOfWholeText = NSMakeRange(0, text.utf16.count) 93 | attributedText = NSMutableAttributedString(string: text) 94 | attributedText.addAttribute(.font, value: UIFont(name: "Arial", size: 18.0)!, range: rangeOfWholeText) 95 | } 96 | 97 | private func unselectLastWord() { 98 | if let selectedRange = previousSelectedRange { 99 | 100 | let currentAttributes = attributedText.attributes(at: selectedRange.location, effectiveRange: nil) 101 | 102 | let fontAttribute = currentAttributes[NSAttributedString.Key.font] ?? UIFont.boldSystemFont(ofSize: 17) 103 | 104 | 105 | let attributedWord = NSMutableAttributedString(string: attributedText.attributedSubstring(from: selectedRange).string) 106 | 107 | 108 | attributedWord.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.black, range: NSMakeRange(0, attributedWord.length)) 109 | attributedWord.addAttribute(.font, value: fontAttribute, range: NSMakeRange(0, attributedWord.length)) 110 | 111 | // Update the text storage property and replace the last selected word with the new attributed string. 112 | 113 | attributedText.replaceCharacters(in: selectedRange, with: attributedWord) 114 | 115 | } 116 | } 117 | 118 | 119 | func speak() { 120 | if !speechSynthesizer.isSpeaking { 121 | /** 122 | let speechUtterance = AVSpeechUtterance(string: tvEditor.text) 123 | speechUtterance.rate = rate 124 | speechUtterance.pitchMultiplier = pitch 125 | speechUtterance.volume = volume 126 | speechSynthesizer.speakUtterance(speechUtterance) 127 | */ 128 | 129 | let textParagraphs = text.components(separatedBy: "\n") 130 | 131 | totalUtterances = textParagraphs.count 132 | currentUtterance = 0 133 | totalTextLength = 0 134 | spokenTextLengths = 0 135 | 136 | for pieceOfText in textParagraphs { 137 | let speechUtterance = AVSpeechUtterance(string: pieceOfText) 138 | speechUtterance.rate = rate 139 | speechUtterance.pitchMultiplier = pitch 140 | speechUtterance.volume = volume 141 | speechUtterance.postUtteranceDelay = 0.005 142 | 143 | if let voiceLanguageCode = preferredVoiceLanguageCode { 144 | let voice = AVSpeechSynthesisVoice(language: voiceLanguageCode) 145 | speechUtterance.voice = voice 146 | } 147 | 148 | totalTextLength = totalTextLength + pieceOfText.utf16.count 149 | 150 | speechSynthesizer.speak(speechUtterance) 151 | } 152 | 153 | 154 | } 155 | else{ 156 | speechSynthesizer.continueSpeaking() 157 | } 158 | 159 | } 160 | 161 | 162 | func pauseSpeech() { 163 | speechSynthesizer.pauseSpeaking(at: AVSpeechBoundary.word) 164 | } 165 | 166 | 167 | func stopSpeech() { 168 | speechSynthesizer.stopSpeaking(at: AVSpeechBoundary.immediate) 169 | } 170 | 171 | 172 | 173 | // MARK: AVSpeechSynthesizerDelegate method implementation 174 | 175 | func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didFinish utterance: AVSpeechUtterance) { 176 | spokenTextLengths = spokenTextLengths + utterance.speechString.utf16.count + 1 177 | 178 | let progress: Float = Float(spokenTextLengths * 100 / totalTextLength) 179 | speechSynthesizerDelegate?.speechSynthesizerProgress(progress/100, attributedText: attributedText) 180 | 181 | if currentUtterance == totalUtterances { 182 | unselectLastWord() 183 | previousSelectedRange = nil 184 | } 185 | speechSynthesizerDelegate?.speechSynthesizerDidFinish() 186 | } 187 | 188 | 189 | func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didStart utterance: AVSpeechUtterance) { 190 | currentUtterance = currentUtterance + 1 191 | speechSynthesizerDelegate?.speechSynthesizerDidStart() 192 | } 193 | 194 | 195 | func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, willSpeakRangeOfSpeechString characterRange: NSRange, utterance: AVSpeechUtterance) { 196 | let progress: Float = Float(spokenTextLengths + characterRange.location) * 100 / Float(totalTextLength) 197 | speechSynthesizerDelegate?.speechSynthesizerProgress(progress/100, attributedText: attributedText) 198 | 199 | // Determine the current range in the whole text (all utterances), not just the current one. 200 | let rangeInTotalText = NSMakeRange(spokenTextLengths + characterRange.location, characterRange.length) 201 | 202 | // Select the specified range in the textfield. 203 | 204 | // Store temporarily the current font attribute of the selected text. 205 | let currentAttributes = attributedText.attributes(at: rangeInTotalText.location, effectiveRange: nil) 206 | let fontAttribute = currentAttributes[NSAttributedString.Key.font] ?? UIFont.boldSystemFont(ofSize: 17) 207 | 208 | // Assign the selected text to a mutable attributed string. 209 | let attributedString = NSMutableAttributedString(string: attributedText.attributedSubstring(from: rangeInTotalText).string) 210 | 211 | // Make the text of the selected area orange by specifying a new attribute. 212 | attributedString.addAttribute(NSAttributedString.Key.foregroundColor, value: fontColor, range: NSMakeRange(0, attributedString.length)) 213 | 214 | // Make sure that the text will keep the original font by setting it as an attribute. 215 | attributedString.addAttribute(NSAttributedString.Key.font, value: fontAttribute, range: NSMakeRange(0, attributedString.string.utf16.count)) 216 | 217 | attributedText.replaceCharacters(in: rangeInTotalText, with: attributedString) 218 | 219 | // If there was another highlighted word previously (orange text color), then do exactly the same things as above and change the foreground color to black. 220 | if let previousRange = previousSelectedRange { 221 | let previousAttributedText = NSMutableAttributedString(string: attributedText.attributedSubstring(from: previousRange).string) 222 | previousAttributedText.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.black, range: NSMakeRange(0, previousAttributedText.length)) 223 | previousAttributedText.addAttribute(NSAttributedString.Key.font, value: fontAttribute, range: NSMakeRange(0, previousAttributedText.length)) 224 | 225 | attributedText.replaceCharacters(in: previousRange, with: previousAttributedText) 226 | } 227 | 228 | // Keep the currently selected range so as to remove the orange text color next. 229 | previousSelectedRange = rangeInTotalText 230 | } 231 | } 232 | -------------------------------------------------------------------------------- /VDSTextToSpeech/ViewController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.swift 3 | // VDSTextToSpeech 4 | // 5 | // Created by Vimal Das on 22/10/18. 6 | // Copyright © 2018 Vimal Das. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | class ViewController: UIViewController,VDSSpeechSynthesizerDelegate { 12 | 13 | @IBOutlet weak var message: UILabel! 14 | @IBOutlet weak var progressView: UIProgressView! { 15 | didSet{ 16 | progressView.progressTintColor = UIColor.orange 17 | progressView.progress = 0 18 | } 19 | } 20 | 21 | override func viewDidLoad() { 22 | super.viewDidLoad() 23 | 24 | message.text = "welcome to VDS Text to speech module. Hope you enjoy" 25 | 26 | let vds = VDSTextToSpeech.shared 27 | vds.speechSynthesizerDelegate = self 28 | 29 | vds.text = message.text ?? "no text found." 30 | 31 | vds.speak() 32 | } 33 | 34 | //MARK:- VDSSpeechSynthesizerDelegate 35 | func speechSynthesizerProgress(_ progress: Float, attributedText: NSMutableAttributedString) { 36 | message.attributedText = attributedText 37 | progressView.progress = progress 38 | } 39 | 40 | func speechSynthesizerDidStart() { 41 | print("speechSynthesizerDidStart") 42 | } 43 | 44 | func speechSynthesizerDidFinish() { 45 | print("speechSynthesizerDidFinish") 46 | } 47 | 48 | 49 | } 50 | 51 | --------------------------------------------------------------------------------