亚马逊Polly字符限制增加

Question

根据最近的AWS公告，Polly的新角色限制为3,000 - 是先前限制1,500的两倍。

以前，我的应用程序的字符数限制为1,450，以便考虑我以编程方式添加到用户输入的字符。鉴于上述公告，我认为将我的角色限制增加到2,950是安全的。但是，我的音频文件是空的（0 kb），我超过大约2,450个字符。我对此感到困惑，当然如果可能的话，我想额外使用500个字符。

这是我的代码：

var AWS = require('aws-sdk'),
    fs = require('fs');
    const Fs = require('fs')
    const path = require('path');
    AWS.config.loadFromPath(path.join(__dirname, 'config.json'));
var mysql      = require('mysql');
var localfile = path.join(__dirname, 'myverse.mp3');
var connection = mysql.createConnection({
  connectionLimit : 10,
  host     : '...',
  user     : '...',
  password : '...',
  database: '...',
});


[some irrelevant code omitted here.]

    connection.query('SELECT versetext, book, mp3, id, reference, userid FROM publicverses where mp3 = "empty" limit 1',
    function (error, results, fields) {
    console.log(error);
    var scripture = results[0].versetext + ".";
    var userid = results[0].userid;
    var book = results[0].book;
    var reference = results[0].reference.replace(":", " verse ").replace(",", " and ");
    if (reference.includes("-")){
      var reference = reference.replace("verse", "verses");
    }
    console.log(scripture + " " +  book.replace("1", "first").replace("2", "second").replace("3", "third") + " " + reference);
    var myverse = "<speak><prosody volume='x-loud'><break time='1s'/>" + scripture + " " +  book.replace("1", "first").replace("2", "second").replace("3", "third") + " " + reference + "<break time='1s'/></prosody></speak>";
    var link = "https://s3.amazonaws.com/publicverses/" + book.replace(/ /g, "")+reference.replace(/ /g, "")+"_user"+userid+"_"+randomnumber+".mp3";

    writeit();
     fs.createWriteStream(localfile);
    var myvalue = fs.createReadStream(localfile);
    setTimeout(uploadit, 2000)

function linkit(){
  'use strict';
   connection.query('update publicverses set mp3 = ? where mp3 = "empty" limit 1', [link],
    function (error, results, fields) {
      console.log(error)

    })

}


function writeit() {
  'use strict';
  const Polly = new AWS.Polly({
    signatureVersion: 'v4',
    region: 'us-east-1'
})

let params = {
    'Text': myverse.replace(" Job ", " Jobe "),
    'LexiconNames': [ 'kjv' ],
    'TextType': 'ssml',
    'OutputFormat': 'mp3',
    'VoiceId': 'Matthew'
}

Polly.synthesizeSpeech(params, (err, data) => {
    if (err) {
        console.log(err.code)
    } else if (data) {
        if (data.AudioStream instanceof Buffer) {
            Fs.writeFile("./myverse.mp3", data.AudioStream, function(err) {
                if (err) {
                    return console.log(err)
                }
                console.log("Verse recorded successfully!")
            })
        }
    }
})

}

function uploadit () {
  'use strict';
  console.log('Preparing to upload the verse.')
  var s3 = new AWS.S3({apiVersion: '2006-03-01'});
  var uploadParams = {Bucket: 'publicverses', key: '/test.mp3', Body: myvalue, ACL: 'public-read'};
  var file = 'MyVerse.mp3';

  var fs = require('fs');
  var fileStream = fs.createReadStream(file);
  fileStream.on('error', function(err) {
    console.log('File Error', err);
  });
  uploadParams.Body = fileStream;

  var path = require('path');
  uploadParams.Key = book.replace(/ /g, "")+reference.replace(/ /g, "")+"_user"+userid+"_"+randomnumber+".mp3";

  // call S3 to retrieve upload file to specified bucket
  s3.upload (uploadParams, function (err, data) {
    if (err) {
      console.log("Error", err);
    } if (data) {
      console.log("Upload Success", data.Location);
      linkit();
      addanother();
    }
  });

}

  });
}