Swift - Reset/Restart SpeechSynthesizer after it finishes

Question

I'm coding an app to read random study questions to students.

The basic flow is:

• Generate random question
• Assign the text to a SpeechUtterrance
• Play the SpeechUtterance with the SpeechSynthesizer
• Get the student's answer
• Check it
• Generate a new random question
• Repeat

Everything works except I can't get it to read more than one question. It'll speak the first one, accept an answer, but I can't get it to read subsequent utterances.

Is there a method I can call to reset the SpeechSynthesizer/SpeechUtterance after the didFinish is run?

Answer 1

So I was using SFSpeechRecognizer and AVSpeechSynthesizer and starting the audio recorder cut off the audio channel to play audio.

I had to change

try audioSession.setCategory(AVAudioSessionCategoryRecord)

to

try audioSession.setCategory(AVAudioSessionCategoryPlayAndRecord)

and that resolved my issue.