Question

I need to turn a text into speech and then save it as wav file.

Answer 1

The following C# code uses the System.Speech namespace in the .Net framework.
It is necessary to reference the namespace before using it, because it is not automatically referenced by Visual Studio.

        SpeechSynthesizer ss = new SpeechSynthesizer();
        ss.Volume = 100;
        ss.SelectVoiceByHints(VoiceGender.Female, VoiceAge.Adult);
        ss.SetOutputToWaveFile(@"C:\MyAudioFile.wav");
        ss.Speak("Hello World");

I hope this is relevant and helpful.