AVSpeechSynthesizer stops at a hypen

Question

AVSpeechSynthesizer stops at a hypen

Richard Bawden 1

The following code displays the behaviour on Xamarin.iOS 15.4 running on iOS 15.2. It only displays the behaviour on a device, not on a simulator.

What am I missing to make the speech continue?

AVSpeechSynthesizer speechSynthesizer = new AVSpeechSynthesizer();
speechSynthesizer.DidFinishSpeechUtterance += (s, e) => { };
var utterance = new AVSpeechUtterance("bonjour porte-helecoptere");
utterance.Voice = AVSpeechSynthesisVoice.FromIdentifier("com.apple.ttsbundle.siri_Daniel_fr-FR_compact");

speechSynthesizer.SpeakUtterance(utterance);

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-01-20T06:59:58.397+00:00

I test on my iOS15.2 simulator, it pronounced the three words " bonjour porte helecoptere " . You could try to clean the solution(delete bin/obj folder), check the the settings of simulator (go to I/O->Audio Output/Inscrease Volume), uninstall the app from the simulator and run to install again.
Richard Bawden 1 Reputation point

2022-01-20T08:34:12.497+00:00

I cannot replicate the behaviour on the simulator. It only fails on a real device.

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Microsoft External Staff

It only pronounced bonjour porte, the word ( helecoptere ) after the "-" is not read, right? I'm so sorry I still couldn't reproduce this issue. I add a button on the viewcontroller, tun on Ring Mode of my iPhone to test, it speak loudly.

            UIButton iButton = new UIButton(UIButtonType.System);
            iButton.Frame = new CoreGraphics.CGRect(20, 80, 40, 40);
            iButton.BackgroundColor = UIColor.Blue;
            iButton.TouchUpInside += (sender, e) =>
            {
                AVSpeechSynthesizer speechSynthesizer = new AVSpeechSynthesizer();
                speechSynthesizer.DidFinishSpeechUtterance += (s, ev) =>
                {
                    Console.WriteLine("{stop}");

                };
                var utterance = new AVSpeechUtterance("bonjour porte-helecoptere  bonjour porte-helecoptere");
                var voices = AVSpeechSynthesisVoice.GetSpeechVoices();
                foreach (AVSpeechSynthesisVoice voice in voices)
                {
                    Console.WriteLine("{0}", voice.Identifier);
                }
                utterance.Voice = AVSpeechSynthesisVoice.FromIdentifier("com.apple.ttsbundle.siri_Daniel_fr-FR_compact");
                //utterance.PostUtteranceDelay = 0.1f;
                speechSynthesizer.SpeakUtterance(utterance);
            };
            vc.View.AddSubview(iButton);

Would you mind sharing a basic minimal reproducible demo with me ? You could upload it to github and attach the link here.

Your answer

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-01-20T06:59:58.397+00:00

I test on my iOS15.2 simulator, it pronounced the three words " bonjour porte helecoptere " . You could try to clean the solution(delete bin/obj folder), check the the settings of simulator (go to I/O->Audio Output/Inscrease Volume), uninstall the app from the simulator and run to install again.
Richard Bawden 1 Reputation point

2022-01-20T08:34:12.497+00:00

I cannot replicate the behaviour on the simulator. It only fails on a real device.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff

2022-01-21T07:39:58.22+00:00

It only pronounced bonjour porte, the word ( helecoptere ) after the "-" is not read, right? I'm so sorry I still couldn't reproduce this issue. I add a button on the viewcontroller, tun on Ring Mode of my iPhone to test, it speak loudly.

UIButton iButton = new UIButton(UIButtonType.System); iButton.Frame = new CoreGraphics.CGRect(20, 80, 40, 40); iButton.BackgroundColor = UIColor.Blue; iButton.TouchUpInside += (sender, e) => { AVSpeechSynthesizer speechSynthesizer = new AVSpeechSynthesizer(); speechSynthesizer.DidFinishSpeechUtterance += (s, ev) => { Console.WriteLine("{stop}"); }; var utterance = new AVSpeechUtterance("bonjour porte-helecoptere bonjour porte-helecoptere"); var voices = AVSpeechSynthesisVoice.GetSpeechVoices(); foreach (AVSpeechSynthesisVoice voice in voices) { Console.WriteLine("{0}", voice.Identifier); } utterance.Voice = AVSpeechSynthesisVoice.FromIdentifier("com.apple.ttsbundle.siri_Daniel_fr-FR_compact"); //utterance.PostUtteranceDelay = 0.1f; speechSynthesizer.SpeakUtterance(utterance); }; vc.View.AddSubview(iButton);

Would you mind sharing a basic minimal reproducible demo with me ? You could upload it to github and attach the link here.

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AVSpeechSynthesizer stops at a hypen

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