SpeechSynthesizer shutdown process in linux without exceptions

Question

I have created a sample console app in dotnet core 5.0 that synthetize some text in italian, using Microsoft.CognitiveServices.Speech library. I can make it work in my Windows laptop and in a Ubuntu virtual machine, but if I try to run it in my Ubuntu server online, it exits without any exceptions. I can't really understand what the problem is, as I can't get any log message. Here the program:

using System;
using System.Threading.Tasks;
using Microsoft.CognitiveServices.Speech;

namespace text2speech_test
{
    class Program
    {
        static async Task Main(string[] args)
        {
            AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
            AppDomain.CurrentDomain.ProcessExit += CurrentDomainOnProcessExit;

            try{
                var text="ciao";

                var config = SpeechConfig.FromSubscription("20e436a07865468ba9b78a4aee703c07", "francecentral");
                config.SpeechRecognitionLanguage = "it-IT";
                config.SpeechSynthesisVoiceName = "it-IT-ElsaNeural";

                using var synthesizer = new SpeechSynthesizer(config, null);

                var result = await synthesizer.SpeakTextAsync(text);
                return;
            }
            catch(Exception ex){
                return;
            }
        }

        static void CurrentDomainOnProcessExit(object sender, EventArgs e){
            Console.WriteLine(e);
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            Console.WriteLine("Terminating " + e.IsTerminating.ToString());
        }
    }
}

Can you help me on this?

Answer 1

Sorry, I just saw your response. No, I didn't solve the problem, the code I posted is really all, it's already a working (and in my case, not working) sample of the azure api used in c#. Just I can't make it work on a Ubuntu Server on the cloud...