视频会议是如何实现AI会议纪要功能的？

/// <summary>
/// 会议纪要生成WebApi调用接口
/// </summary>
internal interface IMeetingSumWebApi
{
    /// <summary>
    /// 发起会议纪要/摘要生成请求
    /// </summary>
    /// <param name="speechModels">语音识别结果集合</param>
    /// <param name="isCompleteContent">true生成完整正式纪要，false为实时片段摘要</param>
    /// <returns>
    /// 第一个bool：true=接口调用正常，第二个string=生成的会议摘要/完整纪要文案；失败时返回错误描述
    /// </returns>
    Task<(bool, string)> Ask(List<VoiceDictationModel> speechModels, bool isCompleteContent = false);
}

/// <summary>
/// 调用 AI 会议纪要生成接口
/// </summary>  
public async Task<(bool, string)> Ask(List<VoiceDictationModel> speechModels, bool isCompleteContent = false)
{
    CancellationToken token = new CancellationToken();
    string resultStr = string.Empty;
    try 
    {
        string domain = "generalv3";
        _webSocketClient = new ClientWebSocket();
        await _webSocketClient.ConnectAsync(new Uri(authUrl), token);
        var speechTexts = speechModels.Select(s => $"{s.SpeakerID}：{s.ConvertText}");
        string allContent = string.Join("\n", speechTexts); 
        List<ReuqestContent> reuqestContents = new List<ReuqestContent>() {
            new ReuqestContent()
            {
                Role = "system",
                Content = isCompleteContent ? prompt1 : prompt2
            },
            new ReuqestContent()
            {
                Role = "user",
                Content = allContent
            }
        }; 
        var request = new JsonRequest()
        {
            Header = new RequestHeader()
            {
                AppId = _appId,
                Uid = "12345"
            },
            Parameter = new RequestParameter()
            {
                Chat = new RequestChat()
                {
                    Domain = domain,
                    Temperature = 0.5,
                    MaxTokens = 1024,
                }
            },
            Payload = new RequestPayload()
            {
                Message = new RequestMessage()
                {
                    Text = reuqestContents
                }
            }
        };
        var jsonStr = Newtonsoft.Json.JsonConvert.SerializeObject(request);
        await _webSocketClient.SendAsync(new ArraySegment<byte>(Encoding.UTF8.GetBytes(jsonStr)), WebSocketMessageType.Text, true, token); 
        var recvBuffer = new byte[1024];
        while (true)
        {
            WebSocketReceiveResult result = await _webSocketClient.ReceiveAsync(new ArraySegment<byte>(recvBuffer), token);
            if (result.CloseStatus.HasValue)
            { 
                return (true, "");
            }
            if (result.MessageType == WebSocketMessageType.Text)
            {
                string recvMsg = Encoding.UTF8.GetString(recvBuffer, 0, result.Count);
                var response = Newtonsoft.Json.JsonConvert.DeserializeObject<JsonResponse>(recvMsg);
                if (response.Header.Code != 0)
                { 
                    return (false, response.Header.Message);
                } 
                if (response.Payload.Choices.Status == 2)
                {
                    resultStr += string.Concat(response.Payload.Choices.Text.Select(x => x.Content)); 
                    return (true, resultStr);
                }
                resultStr += string.Concat(response.Payload.Choices.Text.Select(x => x.Content)); 
            }
            else if (result.MessageType == WebSocketMessageType.Close)
            {
                return (false, result.CloseStatusDescription);
            }
        }
    }
    catch (Exception e)
    {
        return (false, e.Message);
    }
    finally
    {
        await _webSocketClient?.CloseAsync( WebSocketCloseStatus.NormalClosure,"client raise close request",token);
    }
}

/// <summary>
/// 实时获取会议音频数据，混音分贝值排名第一的用户
/// </summary>
private void MicMixer_AudioMixed(string userID, byte[] bytes)
{ 
    AudioMixed?.Invoke(userID, bytes); 
}

/// <summary>
/// 对接语音听写服务接口
/// </summary>
/// <param name="curStatus">0：首次发送；1：发送中；2：结束发送</param>
/// <param name="data">音频数据</param> 
private void onSend(int curStatus, string data)
{
    if (curStatus == 0)
    {
        var json = new
        {
            common = new
            {
                app_id = $"{_appID}"
            },
            business = new
            {
                language = "zh_cn",
                domain = "iat",
                accent = "mandarin",
                eos = 10000
            },
            data = new
            {
                status = 0,
                format = "audio/L16;rate=16000",
                encoding = "raw",
                audio = $"{data}"
            }
        };
        string jsonStr = JsonConvert.SerializeObject(json, Formatting.Indented);
        _ws.SendAsync(new ArraySegment<byte>(Encoding.UTF8.GetBytes(jsonStr)), WebSocketMessageType.Binary, true, new CancellationToken());
    }
    else if (curStatus == 1)
    { 
        var json = new
        {
            data = new
            {
                status = 1,
                format = "audio/L16;rate=16000",
                encoding = "raw",
                audio = $"{data}"
            }
        };
        string jsonStr = JsonConvert.SerializeObject(json, Formatting.Indented);
        _ws.SendAsync(new ArraySegment<byte>(Encoding.UTF8.GetBytes(jsonStr)), WebSocketMessageType.Binary, true, new CancellationToken());
    }
    else if (curStatus == 2)
    { 
        var json = new
        {
            data = new
            {
                status = 2
            }
        };
        string jsonStr = JsonConvert.SerializeObject(json, Formatting.Indented);
        _ws.SendAsync(new ArraySegment<byte>(Encoding.UTF8.GetBytes(jsonStr)), WebSocketMessageType.Binary, true, new CancellationToken());
    }
}