使用 Azure Cognitive Service 認知服務將語音即時轉譯為文字

public static async Task RecognitionWithMicrophoneAsync()
{
    // 建立語音辨識的設定，這裡必須提供 Azure Cognitive Service 的訂閱金鑰和服務區域
    var config = SpeechConfig.FromSubscription(YourSubscriptionKey, YourServiceRegion);
    // 預設使用 en-us 的美式英文作為辨識語言
    config.SpeechRecognitionLanguage = "en-us";

    // 建立語音辨識器，並將音訊來源指定為機器預設的麥克風
    using (var recognizer = new SpeechRecognizer(config, AudioConfig.FromDefaultMicrophoneInput()))
    {
        Console.WriteLine("Say something...");

        // 開始進行語音辨識，會在辨別出句子結束時，返回語音辨識的結果。
        // 會藉由句子說完後，所產生的靜默時間作為辨識依據，或者語音超過 15 秒，也會處理成斷句。
        var result = await recognizer.RecognizeOnceAsync().ConfigureAwait(false);

        // 輸出語音辨識結果
        switch (result.Reason)
        {
            case ResultReason.RecognizedSpeech:
                Console.WriteLine($"RECOGNIZED: {result.Text}");
                break;
            case ResultReason.NoMatch:
                Console.WriteLine($"NOMATCH: Speech could not be recognized.");
                break;
            case ResultReason.Canceled:
            default:
                var cancellation = CancellationDetails.FromResult(result);
                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 update the subscription info?");
                }
                break;
        }
    }
}