iOS Text To Speech Api
I can't seem to find anything on this. Are there any Siri classes or API's in iOS7 that let you do text to speech? All I am trying to do is something like the following:
[siriInstance say:@"This is a test"];
And then have Siri say it from my app.
It seems we should be capable of doing this, no? Seems like a trivial thing.
Since iOS 7 you have a new TTS Api.
In Objective C
AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc]init];
AVSpeechUtterance *utterance = [AVSpeechUtterance speechUtteranceWithString:@"Some text"];
[utterance setRate:0.2f];
[synthesizer speakUtterance:utterance];
In Swift
let synthesizer = AVSpeechSynthesizer()
let utterance = AVSpeechUtterance(string: "Some text")
utterance.rate = 0.2
You can also change the voice like this :
utterance.voice = AVSpeechSynthesisVoice(language: "fr-FR")
And then speek
In Swift 2
synthesizer.speakUtterance(utterance)
In Swift 3
synthesizer.speak(utterance)
Don't forget to import AVFoundation
Helpful methods
You can Stop or Pause all speech using these two methods :
- (BOOL)pauseSpeakingAtBoundary:(AVSpeechBoundary)boundary;
- (BOOL)stopSpeakingAtBoundary:(AVSpeechBoundary)boundary;
The AVSpeechBoundary
indicates if the speech should pause or stop immediately (AVSpeechBoundaryImmediate
) or it should pause or stop after the word currently being spoken (AVSpeechBoundaryWord
).
Check the AVSpeechSynthesizer Doc
This is Ali ABBAS' answer for use in a playground:
import UIKit
import AVKit
import AVFoundation
import PlaygroundSupport
var str = "Hello, playground"
let synthesizer = AVSpeechSynthesizer()
let utterance = AVSpeechUtterance(string: str)
utterance.rate = 0.4
utterance.voice = AVSpeechSynthesisVoice(language: "en-US")
//for playground only
let playerViewController = AVPlayerViewController()
PlaygroundPage.current.liveView = playerViewController.view
//
synthesizer.speak(utterance)