After calling await deepgramLive.FinishAsync(), deepgramLive.State() never becomes CloseRecieved/Closed

[tomkail]

As stated! I'm generally very unsure how to use the streaming API. The documenation is really out of date. Here's my script. I'm using Unity and my own microphone system, which flushes data to Deepgram in this loop.

                deepgramLive.ConnectionOpened += HandleConnectionOpened;
                deepgramLive.ConnectionClosed += HandleConnectionClosed;
                deepgramLive.ConnectionError += HandleConnectionError;
                deepgramLive.TranscriptReceived += HandleTranscriptReceived;

                async void HandleConnectionOpened(object sender, ConnectionOpenEventArgs e) {
                    await UniTask.SwitchToMainThread();

                }

                async void HandleTranscriptReceived(object sender, TranscriptReceivedEventArgs e) {
                    // Debug.Log($"Recieve data {e.Transcript.Channel.Alternatives.First().Transcript} Final: {e.Transcript.IsFinal} SpeechFinal: {e.Transcript.SpeechFinal}");
                    if (e.Transcript.IsFinal) {
                        if (isWaitingOnTranscriptFinal) {
                            isWaitingOnTranscriptFinal = false;
                            // await deepgramLive.StopConnectionAsync();
                        }
                        await UniTask.SwitchToMainThread();
                        if (e.Transcript.Channel != null && !e.Transcript.Channel.Alternatives.IsNullOrEmpty() && !e.Transcript.Channel.Alternatives.First().Transcript.IsNullOrEmpty()) {
                            var transcript = e.Transcript;
                            voiceInputText.AppendLine(transcript.Channel.Alternatives.First().Transcript);
                            Debug.Log($"[Speaker: {transcript.Channel.Alternatives.First().Words.First().Speaker}] {transcript.Channel.Alternatives.First().Transcript}");
                            // Debug.Log($"{voiceInputText}");
                        }
                    }
                }

                void HandleConnectionClosed(object sender, ConnectionClosedEventArgs e) { }

                async void HandleConnectionError(object sender, ConnectionErrorEventArgs e) {
                    finishRequested = false;
                    isWaitingOnTranscriptFinal = false;
                    await UniTask.SwitchToMainThread();
                    Debug.LogError(e.Exception.Message);
                    recordingHandler.StopRecording(true);
                    await deepgramLive.StopConnectionAsync();
                    SetState(State.AudioIdle);
                }

                await deepgramLive.StartConnectionAsync(liveTranscriptionOptions);

                var numSamples = recordingHandler.CalculateDeltaSampleCount(ref microphoneInputLastPosition);
                if (numSamples > 0) {
                    float[] samples = new float[numSamples];
                    recordingHandler.GetRecentMicrophoneData(samples);
                    deepgramLive.SendData(DeepgramUtils.SampleDataToLiveStreamingByteArray(samples));
                }

                SetState(State.AudioRecording);

                while (deepgramLive.State() == WebSocketState.Connecting || deepgramLive.State() == WebSocketState.Open) {
                    if (this == null) {
                        await deepgramLive.StopConnectionAsync();
                        return;
                    }

                    numSamples = recordingHandler.CalculateDeltaSampleCount(ref microphoneInputLastPosition);
                    if (numSamples > 0) {
                        float[] samples = new float[numSamples];
                        recordingHandler.GetRecentMicrophoneData(samples);
                        deepgramLive.SendData(DeepgramUtils.SampleDataToLiveStreamingByteArray(samples));
                    }

                    if (finishRequested) {
                        Debug.Log("Start FinishAsync "+deepgramLive.State());
                        await deepgramLive.FinishAsync();
                        while (deepgramLive.State() != WebSocketState.CloseSent && deepgramLive.State() != WebSocketState.CloseReceived && deepgramLive.State() != WebSocketState.Closed) {
                            await UniTask.Delay(50);
                        }
                        Debug.Log("Finish FinishAsync "+deepgramLive.State());
                        while (deepgramLive.State() != WebSocketState.CloseReceived && deepgramLive.State() != WebSocketState.Closed) {
                            await UniTask.Delay(50);
                        }
                        Debug.Log("Deepgram closed "+deepgramLive.State());
                        break;
                    } else {
                        // deepgramLive.KeepAlive();
                    }
                    await UniTask.Delay(50);
                }
                finishRequested = false;
            }```

[dvonthenen]

If you are in the early stages of development, I would encourage you to take a look at the beta that has been posted this week: https://github.com/deepgram/deepgram-dotnet-sdk/releases/tag/4.0.0-beta.2

In the examples folder off the root of the repo, there is a functioning microphone example using portaudio, but I am sure you can probably adapt it to your needs.

If this is an existing implementation using v3, I am going to need to take some time to look at the older v3 implementation.

[dvonthenen]

The RC for v4 has been released. The interfaces should be stable now and I would definitely encourage using this version as there have been many enhancements along the way. If you are still encountering this issue in v4, please drop a line here and we can re-open this issue.