Synthesize Text

// Lists voices from the API.
GoogleTTS::ListVoices(FGTTSVoicesCallback::CreateCallback([](TArray<FGTTSVoice> Voices, FGTTSError Error)
{
   // Checks for error.
   if (Error)
   {
      UE_LOG(LogTemp, Error, TEXT("Failed to list voices: %s"), *Error.Message);
   }
   // No error, the voices are available.
   else
   {
      // Example: we iterate over the voices and print them to log.
      for (const FGTTSVoice& Voice : Voices)
      {
         UE_LOG(LogTemp, Log, TEXT("Voice name: "), *Voice.Name);
      }
   }
}));

const FString Text = TEXT("Hi guys, I am an American voice");
// Synthesize the text.
GoogleTTS::SynthesizeTextToSoundWave(
   /* The voice we want to use. */
   TEXT("en-US"), 
   /* Voice config. Here, we just use the default one. */
   {}, 
   /* The text to synthesize. */
   Text,
   /* Callback called when the text has been synthesized. */
   FGTTSVoicesCallback::CreateLambda([](class USoundWave* SoundWave, FGTTSError Error)
{
   // Checks for error.
   if (Error)
   {
      UE_LOG(LogTemp, Error, TEXT("Failed to synthesize text: %s"), *Error.Message);
   }
   // Text was synthesized.
   else
   {
      // Do something with SoundWave.
      UGameplayStatics::PlaySound2D(WorldContext, SoundWave);
   }
}));