如何提取从createRecognizeStream()方法返回的值? [英] How to extract the values that return from the createRecognizeStream() method?

问题描述

将Watson语音用于文本服务 如何提取从createRecognizeStream()方法返回的值?

Using Watson Speech to Text Services How to extract the values that return from the createRecognizeStream() method?

这是示例代码的一部分.我试图在终端中查看临时结果，但是我得到的只是这个.如何设置显示结果的选项?

Here is a chunk of the sample code. I am trying to see in the terminal the interim results but all i get is this. How do I set the options for the results to appear?

{ results: [ { alternatives: [Object], final: false } ],
result_index: 0 }
{ results: [ { alternatives: [Object], final: false } ],
result_index: 0 }
{ results: [ { alternatives: [Object], final: false } ]...

它们应该看起来像这样:

they should look like this:

{
 "results": [
{
  "alternatives": [
    {
      "timestamps": [
        [
          "Here",
          0.08,
          0.63
        ],
        [
          "I",
          0.66,
          0.95
        ],
        [
          "Open",
          0.95,
          1.07
        ],
        [
          "a",
          1.07,
          1.33
        ],
        [
          "strong",
          1.33,
          1.95
        ],
        [
          "group",
          2.03,
          2.18
        ],
        [
          "of",
          2.18,
          2.72
        ],
        [

示例代码:

  // create the stream
    var recognizeStream = speech_to_text.createRecognizeStream(params);

    // pipe in some audio
    fs.createReadStream(filepath).pipe(recognizeStream);;
    // and pipe out the transcription
    recognizeStream.pipe(fs.createWriteStream('transcriptions/transcription-' + path.basename(filepath) + '.txt'));

    // listen for 'data' events for just the final text
    // listen for 'results' events to get the raw JSON with interim results, timings, etc.
    recognizeStream.setEncoding('utf8');// to get strings instead of Buffers from `data` events
    ['data','results', 'error', 'connection-close'].forEach(function(eventName) {
    //JSON.stringify(eventName, null, 2)            
    //fs.writeFile('./transcript.txt', JSON.stringify(transcript), function(err) {if(err){return console.log('err')}});
        recognizeStream.on('results', console.log.bind(console, ''));
    });

推荐答案

如果想要漂亮的多行JSON，则需要对JSON进行字符串化:

You need to stringify the JSON if you want a pretty, multiline JSON:

您应该使用:

JSON.stringify(value[, replacer[, space]])

根据您的示例，您将执行以下操作:

Based on your example you will do:

var recognizeStream = speech_to_text.createRecognizeStream(params);

fs.createReadStream(filepath).pipe(recognizeStream);

recognizeStream.setEncoding('utf8');

// print interim results and final results
['data','results'].forEach(function(eventName) {
  recognizeStream.on(eventName, JSON.stringify.bind(JSON));
});

// print error and connection-close events
['error', 'connection-close'].forEach(function(eventName) {
  recognizeStream.on(eventName, console.log.bind(console, ''));
});

这篇关于如何提取从createRecognizeStream()方法返回的值?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！