I have the same problem. Have you figured this out?

I got it to work. I needed to use .pcmFormatFloating32 instead of .pcmIFormatnt16

Here is the main method I use: func synthesize(utteranceString: String, avAudioPCMBufferFormatSettings: [String:Any], usingVoiceIdentifier voiceIdentifier: String, utteranceRate: Float, pitchMultiplier: Float, andSaveAudioFileTo saveToURL: URL, completionHandler: ((_ pcmBuffer: AVAudioPCMBuffer, _ audioFile: AVAudioFile?)->Void)? = nil) { print("#", #function, "voiceIdentifier: \(voiceIdentifier)", terminator: "\n") let utterance = AVSpeechUtterance(string: utteranceString) utterance.rate = utteranceRate utterance.pitchMultiplier = pitchMultiplier let voice = AVSpeechSynthesisVoice(identifier: voiceIdentifier) // TODO: Why is this generating a nil? utterance.voice = voice synthesizer.write(utterance) { (buffer: AVAudioBuffer) in print("in closure") // TODO: Tailor code in this closure to adjust to current device running this app project. guard let pcmBuffer = buffer as? AVAudioPCMBuffer else { fatalError("unknown buffer unknown buffer type: \(buffer)") } if pcmBuffer.frameLength == 0 { print("done because buffer frame length equals 0") } else { // append buffer to file if self.audioFile == nil { print("self.audioFile == nil") do { self.audioFile = try AVAudioFile( forWriting: saveToURL, settings: pcmBuffer.format.settings, commonFormat: .pcmFormatInt16, interleaved: false) } catch { print("try AVAudioFile( catch error: \(error.localizedDescription)") completionHandler?(pcmBuffer, nil) } } do { try self.audioFile!.write(from: pcmBuffer) print("!!! 2") completionHandler?(pcmBuffer, self.audioFile) } catch { print("try self.audioFile!.write(from: pcmBuffer) catch error: \(error.localizedDescription)") completionHandler?(pcmBuffer,nil) } } } }

Has anyone gotten this to work without downloading iOS 18?

Have you figured this out?

Were you able to get AVSpeechSynthesizer to work in IPA mode? I'm trying to figure this one out.

Did you get an answer?

I am able to force quit, but it still lags when I restart Xcode & even restart my Mac Pro.

iOS 17 emulator? Is that the same as simulator?

I found it. MFi Program.

Do you have a solution for this now that Xcode 15 has been released?

I have no idea what PosterBoard is. One of the questions in Apple Forums indicated it had something to do with Simulator as I understand it, but I would think an actual device would also have common software with Simulator. But I still believe I don't know.

Hi @kontiki, have you figured out how to get the highlightProperty of CNContactViewController to work?

I have the same problem that the property doesn't get highlighted, except the error message is: "[PPT] Error creating the CFMessagePort needed to communicate with PPT." Is there a current solution or workaround?

Would this work if use it from my Share Controller to tell the user that the act of sharing occurred or succeeded when the user uses my share extension by telling an app to share with my app?