.Net: Added an example of OpenAI Realtime API

dotnet/SK-dotnet.sln

@@ -424,6 +424,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Process.IntegrationTests.Re
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OllamaFunctionCalling", "samples\Demos\OllamaFunctionCalling\OllamaFunctionCalling.csproj", "{481A680F-476A-4627-83DE-2F56C484525E}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "OpenAIRealtime", "samples\Demos\OpenAIRealtime\OpenAIRealtime.csproj", "{6154129E-7A35-44A5-998E-B7001B5EDE14}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -1133,6 +1135,12 @@ Global
 		{481A680F-476A-4627-83DE-2F56C484525E}.Publish|Any CPU.Build.0 = Debug|Any CPU
 		{481A680F-476A-4627-83DE-2F56C484525E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{481A680F-476A-4627-83DE-2F56C484525E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6154129E-7A35-44A5-998E-B7001B5EDE14}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6154129E-7A35-44A5-998E-B7001B5EDE14}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6154129E-7A35-44A5-998E-B7001B5EDE14}.Publish|Any CPU.ActiveCfg = Debug|Any CPU
+		{6154129E-7A35-44A5-998E-B7001B5EDE14}.Publish|Any CPU.Build.0 = Debug|Any CPU
+		{6154129E-7A35-44A5-998E-B7001B5EDE14}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6154129E-7A35-44A5-998E-B7001B5EDE14}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -1288,6 +1296,7 @@ Global
 		{A2D349C4-EA6E-465C-B86D-00C2942E3135} = {0D8C6358-5DAA-4EA6-A924-C268A9A21BC9}
 		{B35B1DEB-04DF-4141-9163-01031B22C5D1} = {0D8C6358-5DAA-4EA6-A924-C268A9A21BC9}
 		{481A680F-476A-4627-83DE-2F56C484525E} = {5D4C0700-BBB5-418F-A7B2-F392B9A18263}
+		{6154129E-7A35-44A5-998E-B7001B5EDE14} = {5D4C0700-BBB5-418F-A7B2-F392B9A18263}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {FBDC56A3-86AD-4323-AA0F-201E59123B83}

dotnet/samples/Demos/OpenAIRealtime/OpenAIRealtime.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <NoWarn>$(NoWarn);VSTHRD111,CA2007,CS8618,CS1591,CA1052,SKEXP0001</NoWarn>
+    <UserSecretsId>5ee045b0-aea3-4f08-8d31-32d1a6f8fed0</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" />
+    <ProjectReference Include="..\..\..\src\Connectors\Connectors.AzureOpenAI\Connectors.AzureOpenAI.csproj" />
+    <ProjectReference Include="..\..\..\src\SemanticKernel.Core\SemanticKernel.Core.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Assets\realtime_whats_the_weather_pcm16_24khz_mono.wav">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

dotnet/samples/Demos/OpenAIRealtime/Options/AzureOpenAIOptions.cs

@@ -0,0 +1,31 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+namespace OpenAIRealtime;
+
+/// <summary>
+/// Configuration for Azure OpenAI service.
+/// </summary>
+public class AzureOpenAIOptions
+{
+    public const string SectionName = "AzureOpenAI";
+
+    /// <summary>
+    /// Azure OpenAI deployment name, see https://learn.microsoft.com/azure/cognitive-services/openai/how-to/create-resource
+    /// </summary>
+    public string DeploymentName { get; set; }
+
+    /// <summary>
+    /// Azure OpenAI deployment URL, see https://learn.microsoft.com/azure/cognitive-services/openai/quickstart
+    /// </summary>
+    public string Endpoint { get; set; }
+
+    /// <summary>
+    /// Azure OpenAI API key, see https://learn.microsoft.com/azure/cognitive-services/openai/quickstart
+    /// </summary>
+    public string ApiKey { get; set; }
+
+    public bool IsValid =>
+        !string.IsNullOrWhiteSpace(this.DeploymentName) &&
+        !string.IsNullOrWhiteSpace(this.Endpoint) &&
+        !string.IsNullOrWhiteSpace(this.ApiKey);
+}

dotnet/samples/Demos/OpenAIRealtime/Options/OpenAIOptions.cs

@@ -0,0 +1,19 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+namespace OpenAIRealtime;
+
+/// <summary>
+/// Configuration for OpenAI service.
+/// </summary>
+public class OpenAIOptions
+{
+    public const string SectionName = "OpenAI";
+
+    /// <summary>
+    /// OpenAI API key, see https://platform.openai.com/account/api-keys
+    /// </summary>
+    public string ApiKey { get; set; }
+
+    public bool IsValid =>
+        !string.IsNullOrWhiteSpace(this.ApiKey);
+}