I am using .NET 6 configure live transcription using Deepgram Version “4.0.2” and WebSockets, but I am keep getting the following messages, while it not working:

2024-07-02 06:50:14.245 [Information] DeepgramWsClientOptions: KeepAlive: False
2024-07-02 06:50:14.270 [Information] DeepgramWsClientOptions: OnPrem: False
2024-07-02 06:50:14.271 [Information] DeepgramWsClientOptions: APIVersion: v1
2024-07-02 06:50:14.273 [Information] DeepgramWsClientOptions: API KEY set from environment variable
2024-07-02 06:50:14.289 [Information] DeepgramWsClientOptions: REST BaseAddress does not contain API version: api.deepgram.com
2024-07-02 06:50:14.292 [Information] DeepgramWsClientOptions: BaseAddress does not contain protocol: api.deepgram.com/v1
2024-07-02 06:50:14.294 [Information] DeepgramWsClientOptions: BaseAddress: wss://api.deepgram.com/v1
2024-07-02 06:50:16.400 [Information] Connect: options:
{
  "model": "nova-2",
  "punctuate": true,
  "smart_format": true
}
2024-07-02 06:50:16.403 [Information] Connect: Using default connect cancellation token

Here are my code snippets:

AudioProcessingService.cs

using Deepgram;
using Deepgram.Models.Live.v1;

namespace WebSocketAudioServer.Services;

public class AudioProcessingService
{
    // This method processes the received audio data.
    public async Task Process(byte[] audioData)
    {
        // Placeholder: Implement your audio processing logic here.
        // For now, we'll just print the length of the data to the console.
        Console.WriteLine($"Processed audio data: {audioData.Length} bytes");

        // Create a new instance of the Deepgram client.
        var liveClient = new LiveClient();

        // Subscribe to the EventResponseReceived event
        liveClient.Subscribe(new EventHandler<ResultResponse>((sender, e) =>
        {
            if (e.Channel != null && e.Channel.Alternatives != null && e.Channel.Alternatives.Count > 0)
            {
                if (e.Channel.Alternatives[0].Transcript == "")
                {
                    return;
                }
                Console.WriteLine($"Speaker: {e.Channel.Alternatives[0].Transcript}");
            }else
            {
                Console.WriteLine("No speaker detected");
            }
        }));

        // Start the connection
        var liveSchema = new LiveSchema()
        {
            Model = "nova-2",
            Punctuate = true,
            SmartFormat = true,
        };
        await liveClient.Connect(liveSchema);

        // get the webcast data... this is a blocking operation
        try
        {
            liveClient.Send(audioData);
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }

        // Stop the connection
        await liveClient.Stop();
    }
}

launchSettings.json

{
  "profiles": {
    "WebSocketAudioServer": {
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": false,
      "applicationUrl": "http://localhost:5000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development",
        "DEEPGRAM_API_KEY": "abc"
      }
    }
  }
}

This is all boiler code from deepgram’s websites:

https://developers.deepgram.com/docs/dotnet-sdk-streaming-transcription

https://developers.deepgram.com/docs/dotnet-sdk-v3-to-v4-migration-guide

https://github.com/deepgram/deepgram-dotnet-sdk/blob/main/examples/streaming/http/Program.cs

Any help or nudge in the right direction would be much appreciated, as I am looking through Deepgram’s documentation and online sources but have not had any luck so far.

Thanks.