javascript - 如何在 JavaScript 中更改 Azure 文本到语音静音超时

Question

我正在使用 Azure SpeechSDK 服务通过 recognizeOnceAsync 进行语音到文本转录。当前代码类似于:

var SpeechSDK, recognizer, synthesizer;
var speechConfig = SpeechSDK.SpeechConfig.fromSubscription('SUB_KEY', 'SUB_REGION');
var audioConfig  = SpeechSDK.AudioConfig.fromDefaultMicrophoneInput();
recognizer = new SpeechSDK.SpeechRecognizer(speechConfig, audioConfig);
new Promise(function(resolve) {
    recognizer.onend = resolve;
    recognizer.recognizeOnceAsync(
        function (result) {
            recognizer.close();
            recognizer = undefined;
            resolve(result.text);
        },
        function (err) {
            alert(err);
            recognizer.close();
            recognizer = undefined;
        }
    );
}).then(r => {
    console.log(`Azure STT enterpreted: ${r}`);
});

在 HTML 文件中，我导入 Azure 包，如下所示:

<script src="https://aka.ms/csspeech/jsbrowserpackageraw"></script>

问题是我想增加 recognizeOnceAsync 方法返回结果之前允许的“静默时间”量。 (也就是说，假设您已经说完话，您应该能够停下来呼吸一下，而无需使用该方法)。有没有办法用 fromDefaultMicrophoneInput 来做到这一点？我尝试过各种方法，例如:

const SILENCE_UNTIL_TIMEOUT_MS = 5000;
speechConfig.SpeechServiceConnection_EndSilenceTimeoutMs = SILENCE_UNTIL_TIMEOUT_MS;
audioConfig.setProperty("Speech_SegmentationSilenceTimeoutMs", SILENCE_UNTIL_TIMEOUT_MS);

但似乎没有人正确延长“沉默时间津贴”。

这是我一直在查看的资源: https://learn.microsoft.com/en-us/javascript/api/microsoft-cognitiveservices-speech-sdk/propertyid?view=azure-node-latest

Answer 1

根据您所描述的内容，您需要设置分段静默超时。不幸的是，目前 JS SDK 中存在一个错误，PropertyId.Speech_SegmentationSilenceTimeoutMs 未正确设置。

作为解决方法，您可以按如下方式设置分段超时:

const speechConfig = SpeechConfig.fromSubscription(subscriptionKey, subscriptionRegion);
speechConfig.speechRecognitionLanguage = "en-US";

const reco = new SpeechRecognizer(speechConfig);
const conn = Connection.fromRecognizer(reco);
conn.setMessageProperty("speech.context", "phraseDetection", {
    "INTERACTIVE": {
        "segmentation": {
            "mode": "custom",
            "segmentationSilenceTimeoutMs": 5000
        }
    },
    mode: "Interactive"
});

reco.recognizeOnceAsync(
    (result) =>
    {
        console.log("Recognition done!!!");
        // do something with the recognition
    },
    (error) =>
    {
        console.log("Recognition failed. Error:" + error);
    });

请注意，分段超时允许的范围是 100-5000 毫秒(含)