c# - Azure 认知服务无法在生产模式下工作

Question

我已经集成了 Azure 认知服务的文本转语音功能。它在 Debug模式下工作得很好。但生产模式下什么也没有发生。当我从 Debug模式转到生产模式时，有什么需要更改的吗？是因为这个吗？

来自Official Documentation

Important

Remember to remove the key from your code when you're done, and never post it publicly. For production, use a secure way of storing and accessing your credentials like Azure Key Vault. See the Cognitive Services security article for more information.

代码

using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.CognitiveServices.Speech;
using Microsoft.CognitiveServices.Speech.Audio;

class Program 
{
    static string YourSubscriptionKey = "YourSubscriptionKey";
    static string YourServiceRegion = "YourServiceRegion";

    static void OutputSpeechSynthesisResult(SpeechSynthesisResult speechSynthesisResult, string text)
    {
        switch (speechSynthesisResult.Reason)
        {
            case ResultReason.SynthesizingAudioCompleted:
                Console.WriteLine($"Speech synthesized for text: [{text}]");
                break;
            case ResultReason.Canceled:
                var cancellation = SpeechSynthesisCancellationDetails.FromResult(speechSynthesisResult);
                Console.WriteLine($"CANCELED: Reason={cancellation.Reason}");

                if (cancellation.Reason == CancellationReason.Error)
                {
                    Console.WriteLine($"CANCELED: ErrorCode={cancellation.ErrorCode}");
                    Console.WriteLine($"CANCELED: ErrorDetails=[{cancellation.ErrorDetails}]");
                    Console.WriteLine($"CANCELED: Did you set the speech resource key and region values?");
                }
                break;
            default:
                break;
        }
    }

    async static Task Main(string[] args)
    {
        var speechConfig = SpeechConfig.FromSubscription(YourSubscriptionKey, YourServiceRegion);      

        // The language of the voice that speaks.
        speechConfig.SpeechSynthesisVoiceName = "en-US-JennyNeural"; 

        using (var speechSynthesizer = new SpeechSynthesizer(speechConfig))
        {
            // Get text from the console and synthesize to the default speaker.
            Console.WriteLine("Enter some text that you want to speak >");
            string text = Console.ReadLine();

            var speechSynthesisResult = await speechSynthesizer.SpeakTextAsync(text);
            OutputSpeechSynthesisResult(speechSynthesisResult, text);
        }

        Console.WriteLine("Press any key to exit...");
        Console.ReadKey();
    }
}

Answer 1

当使用 Azure Key Vault 安全存储环境变量 key 时，生产模式将正常运行。

第一步是使用以下命令获取环境变量 key

using static System.Environment;

class Program
{
    static void Main()
    {
        // Get the named env var, and assign it to the value variable
        var value =
            GetEnvironmentVariable(
                "ENVIRONMENT_VARIABLE_KEY");
    }
}

由于环境变量 key 缺乏安全性，生产模式无法工作。如果环境变量 key 值存储在 Azure key 保管库中，它也将在生产模式下运行。