Open Radar

 
If AVSpeechSynthesizer had spoken at least one utterance it never deallocates on iOS 13.0-13.2
Please see the attached demo project. It works ok on iOS 12.* but leaks on iOS 13 about 10MB per AVSpeechSynthesizer instance.

Code from the demo project to reproduce: 

import UIKit
import AVFoundation

class ViewController: UIViewController {
    private var timer: Timer?
    private var synth = AVSpeechSynthesizer()

    override func viewDidLoad() {
        super.viewDidLoad()
        timer = Timer.scheduledTimer(timeInterval: 1, target: self,   selector: (#selector(ViewController.tick)), userInfo: nil, repeats: true)
    }

    @objc
    func tick() {
        synth = AVSpeechSynthesizer()
        synth.speak(AVSpeechUtterance(string: "test"))
    }
}