Method Example2Async

tts/tts-dotnet-quickstart/Program.cs:101–185

Example 2: Voice Design. * * This method demonstrates how you can create a custom voice via the API. * First, synthesize speech by specifying a `description` prompt and characteristic * sample text. Specify the generation_id of the resulting audio in a subsequent * call to create a voice. Then, future calls to tts endpoints can specify the * voice by name or generation_id.

()

    * voice by name or generation_id.
    */
    static async Task Example2Async()
    {
        Console.WriteLine("Example 2: Voice Design - Creating a custom voice...");

        var result1 = await _client!.Tts.SynthesizeJsonAsync(new PostedTts
        {
            Utterances = new List<PostedUtterance>
            {
                new PostedUtterance
                {
                    Description = "Crisp, upper-class British accent with impeccably articulated consonants and perfectly placed vowels. Authoritative and theatrical, as if giving a lecture.",
                    Text = "The science of speech. That's my profession; also my hobby. Happy is the man who can make a living by his hobby!"
                }
            },
            NumGenerations = 2,
            StripHeaders = true,
        });

        Console.WriteLine("Example 2: Synthesizing voice options for voice creation...");
        using var audioPlayer = StartAudioPlayer();
        await audioPlayer.StartAsync();

        int sampleNumber = 1;
        var generationsList = result1.Generations.ToList();
        foreach (var generation in generationsList)
        {
            audioPlayer.WriteAudio(Convert.FromBase64String(generation.Audio));
            Console.WriteLine($"Playing option {sampleNumber}...");
            sampleNumber++;
        }
        await audioPlayer.StopAsync();

        // Prompt user to select which voice they prefer
        Console.WriteLine("\nWhich voice did you prefer?");
        Console.WriteLine($"1. First voice (generation ID: {generationsList[0].GenerationId})");
        Console.WriteLine($"2. Second voice (generation ID: {generationsList[1].GenerationId})");

        string? userChoice;
        int selectedIndex;
        do
        {
            Console.Write("Enter your choice (1 or 2): ");
            userChoice = Console.ReadLine();
        } while (!int.TryParse(userChoice, out selectedIndex) || (selectedIndex != 1 && selectedIndex != 2));

        var selectedGenerationId = generationsList[selectedIndex - 1].GenerationId;
        Console.WriteLine($"Selected voice option {selectedIndex} (generation ID: {selectedGenerationId})");

        // Save the selected voice
        var voiceName = $"higgins-{DateTimeOffset.UtcNow.ToUnixTimeSeconds()}";
        await _client!.Tts.Voices.CreateAsync(new PostedVoice
        {
            Name = voiceName,
            GenerationId = selectedGenerationId,
        });

        Console.WriteLine($"Created voice: {voiceName}");