Make Microphone stream sample Windows compatible, add readmes

Samples/MicrophoneStream/Program.cs

@@ -1,9 +1,11 @@
 using System.Diagnostics;
+using System.Runtime.InteropServices;
 using System.Text;
 using AssemblyAI.Realtime;
 using Microsoft.Extensions.Configuration;
 
 var transcriptWords = new SortedDictionary<int, string>();
+
 string BuildTranscript()
 {
     var stringBuilder = new StringBuilder();
@@ -33,7 +35,8 @@ string BuildTranscript()
 });
 
 transcriber.PartialTranscriptReceived.Subscribe(transcript =>
-{        // don't do anything if nothing was said
+{
+    // don't do anything if nothing was said
     if (string.IsNullOrEmpty(transcript.Text)) return;
     transcriptWords[transcript.AudioStart] = transcript.Text;
 
@@ -65,7 +68,8 @@ string BuildTranscript()
 Console.WriteLine("Starting recording");
 
 var soxArguments = string.Join(' ', [
-    "--default-device",
+    // --default-device doesn't work on Windows
+    RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? "-t waveaudio default" : "--default-device",
     "--no-show-progress",
     "--rate 16000",
     "--channels 1",
@@ -99,4 +103,4 @@ string BuildTranscript()
 }
 
 soxProcess.Kill();
-await transcriber.CloseAsync();
+await transcriber.CloseAsync();

Samples/MicrophoneStream/README.md

@@ -0,0 +1,18 @@
+# Transcribe audio from the microphone in real-time
+
+The following things are required to run the sample:
+* [.NET 8 or up](https://dotnet.microsoft.com/en-us/download)
+* [Install SoX and add it to the PATH environment variable](https://sourceforge.net/projects/sox/)
+* An [AssemblyAI](https://www.assemblyai.com/dashboard/signup) account with credit card set up
+* Configure [your AssemblyAI API key](https://www.assemblyai.com/app/account) using .NET user-secrets:
+  ```bash
+  dotnet user-secrets set AssemblyAI:ApiKey [YOUR_API_KEY]
+  ```
+
+Now run the sample:
+
+```bash
+dotnet run
+```
+
+Speak into your microphone to see your speech transcribed in real-time.

Samples/README.md

@@ -0,0 +1,8 @@
+# Samples for the AssemblyAI C# .NET SDK
+
+This solution contains a variety of samples that show how to use the AssemblyAI SDK for C# .NET.
+
+* [MicrophoneStream](./MicrophoneStream): A console app to transcribe speech from the microphone in real-time.
+* [Avalonia](./Avalonia): An Avalonia app that lets you transcribe audio files, prompt LLMs using LeMUR, and transcribe speech from the microphone in real-time.
+* [BlazorSample](./BlazorSample): A Blazor WASM and Server app that lets you transcribe audio files, prompt LLMs using LeMUR, and transcribe speech from the microphone in real-time.
+* [TwilioVoice](./TwilioVoice): An ASP.NET Core app that uses Twilio Media Streams to transcribe speech from Twilio Voice calls  in real-time.