Why has AVSpeechSynthesizer quit speaking?

Question

Created Feb ’24

Replies 2

Boosts 1

Participants 3

I have AVSpeechSynthesizer built in to 6 apps for iPad/iOS that were working fine until recently. Sometime between November 2023 and Feb 2024, they just quit speaking on all the apps for no apparent reason. There have been both XCode and iOS updates in the interim, but I cannot be sure which caused it. It doesn't work either in XCode on simulation, nor on devices.

What did Apple change?

XCode 15.2 iOS 17+ SwiftUI

let synth = AVSpeechSynthesizer() var thisText = "" func sayit(thisText: String) { let utterance = AVSpeechUtterance(string: thisText)

    utterance.voice = AVSpeechSynthesisVoice(language:"en-US")
    utterance.rate = 0.4
    utterance.preUtteranceDelay = 0.1
     synth.speak(utterance)}

Boost

Answer 1

Frameworks Engineer OP

Apple

Feb ’24

Hello, sorry you're running into this! Please take a few extra minutes and paste this issue into a bug report so we can confirm this is tracked in our internal system. Doing this will help us get vital information about the issue like logs from your device to understand what is happening. You can file a report here: https://developer.apple.com/bug-reporting/

Once you do, feel free to reply with the Feedback ID number and I can make sure the right people are aware of this.

0

Answer 2

d.m. OP

2w

We are experiencing similar random crashes of audio sessions with AVSpeechSynthesizer. After a lot of tests, it seems that the preUtteranceDelay is the problem if AVSpeechSynthesizer.stopSpeaking() is called during the delay period. I will fill a bug report and post the feedback ID here.

0