Azure Ai Voicelive Dotnet

using Azure.Identity;using Azure.AI.VoiceLive;
Uri endpoint = new Uri("https://your-resource.cognitiveservices.azure.com");// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>var credential = new DefaultAzureCredential(    DefaultAzureCredential.DefaultEnvironmentVariableName);// Or use a specific credential directly in production:// See https://learn.microsoft.com/dotnet/api/overview/azure/identity-readme?view=azure-dotnet#credential-classes// var credential = new ManagedIdentityCredential();VoiceLiveClient client = new VoiceLiveClient(endpoint, credential);

Uri endpoint = new Uri("https://your-resource.cognitiveservices.azure.com");AzureKeyCredential credential = new AzureKeyCredential("your-api-key");VoiceLiveClient client = new VoiceLiveClient(endpoint, credential);

using Azure.Identity;using Azure.AI.VoiceLive;
var endpoint = new Uri(Environment.GetEnvironmentVariable("AZURE_VOICELIVE_ENDPOINT"));var client = new VoiceLiveClient(endpoint, new DefaultAzureCredential());
var model = "gpt-4o-mini-realtime-preview";
// Start sessionusing VoiceLiveSession session = await client.StartSessionAsync(model);
// Configure sessionVoiceLiveSessionOptions sessionOptions = new(){    Model = model,    Instructions = "You are a helpful AI assistant. Respond naturally.",    Voice = new AzureStandardVoice("en-US-AvaNeural"),    TurnDetection = new AzureSemanticVadTurnDetection()    {        Threshold = 0.5f,        PrefixPadding = TimeSpan.FromMilliseconds(300),        SilenceDuration = TimeSpan.FromMilliseconds(500)    },    InputAudioFormat = InputAudioFormat.Pcm16,    OutputAudioFormat = OutputAudioFormat.Pcm16};
// Set modalities (both text and audio for voice assistants)sessionOptions.Modalities.Clear();sessionOptions.Modalities.Add(InteractionModality.Text);sessionOptions.Modalities.Add(InteractionModality.Audio);
await session.ConfigureSessionAsync(sessionOptions);

await foreach (SessionUpdate serverEvent in session.GetUpdatesAsync()){    switch (serverEvent)    {        case SessionUpdateResponseAudioDelta audioDelta:            byte[] audioData = audioDelta.Delta.ToArray();            // Play audio via NAudio or other audio library            break;                    case SessionUpdateResponseTextDelta textDelta:            Console.Write(textDelta.Delta);            break;                    case SessionUpdateResponseFunctionCallArgumentsDone functionCall:            // Handle function call (see Function Calling section)            break;                    case SessionUpdateError error:            Console.WriteLine($"Error: {error.Error.Message}");            break;                    case SessionUpdateResponseDone:            Console.WriteLine("\n--- Response complete ---");            break;    }}

await session.AddItemAsync(new UserMessageItem("Hello, can you help me?"));await session.StartResponseAsync();

// Define functionvar weatherFunction = new VoiceLiveFunctionDefinition("get_current_weather"){    Description = "Get the current weather for a given location",    Parameters = BinaryData.FromString("""        {            "type": "object",            "properties": {                "location": {                    "type": "string",                    "description": "The city and state or country"                }            },            "required": ["location"]        }        """)};
// Add to session optionssessionOptions.Tools.Add(weatherFunction);
// Handle function call in event loopif (serverEvent is SessionUpdateResponseFunctionCallArgumentsDone functionCall){    if (functionCall.Name == "get_current_weather")    {        var parameters = JsonSerializer.Deserialize<Dictionary<string, string>>(functionCall.Arguments);        string location = parameters?["location"] ?? "";                // Call external service        string weatherInfo = $"The weather in {location} is sunny, 75°F.";                // Send response        await session.AddItemAsync(new FunctionCallOutputItem(functionCall.CallId, weatherInfo));        await session.StartResponseAsync();    }}

if (serverEvent is SessionUpdateError error){    if (error.Error.Message.Contains("Cancellation failed: no active response"))    {        // Benign error, can ignore    }    else    {        Console.WriteLine($"Error: {error.Error.Message}");    }}