Convert Speech to Text- Nodejs

Hi There ,
I am going to tell you how to convert Audio/Speech/Mp3 and other audio file into Text format.

I will use Nodejs, Bluemix (IBM Cloud Plateform).So let's start.

You should follow below steps to the same:

Step 1: Register on Bluemix (IBM Cloud Plateform).
Step 2: Login on Bluemix.
Step 3: Crete a service for speech-to-text. And get the username and password for speech-to-text.  Link : Create service for speech to text

Step 4:  Start coding.
Step 5:  create a .js file and require speech-to-text and fs just like below code.

 

var SpeechToTextV1 = require('watson-developer-cloud/speech-to-text/v1');

var fs = require('fs');

Step 6: Create an object of SpeechToText just like below code.

var speech_to_text = new SpeechToTextV1({

username: '1234567-8765-4267-9e76-fgff34f',

password: 'ABCdefghiJK'

});

Step 7: Create an array and insert the path of the audio. You can have many audio file in this array.

 

var files = ['./music/hello.flac','./music/somebody2010.flac'];

 Step 8: Create params for every audio, So we will do it in for loop and call speech_to_text.recognize() to convert.Get the response and console it.

for (var file in files) {

var params = {

audio: fs.createReadStream(files[file]),

content_type: 'audio/flac',

timestamps: true,

word_alternatives_threshold: 0.9,

keywords: ['colorado', 'tornado', 'tornadoes'],

keywords_threshold: 0.5

};

speech_to_text.recognize(params, function (error, transcript) {

if (error)

console.log('Error:', error);

else{

console.log(JSON.stringify(transcript, null, 2));

console.log(transcript.results[0].alternatives[0].transcript);

}

});

}

 Congratulation ! You did it.




The complete code is here :

 

 

var SpeechToTextV1 = require('watson-developer-cloud/speech-to-text/v1');

var fs = require('fs');

var speech_to_text = new SpeechToTextV1({

username: '1234567-8765-4267-9e76-fgff34f',

password: 'ABCdefghiJK'

});

var files = ['./music/hello.flac','./music/somebody2010.flac'];

for (var file in files) {

var params = {

audio: fs.createReadStream(files[file]),

content_type: 'audio/flac',

timestamps: true,

word_alternatives_threshold: 0.9,

keywords: ['colorado', 'tornado', 'tornadoes'],

keywords_threshold: 0.5

};

speech_to_text.recognize(params, function (error, transcript) {

if (error)

console.log('Error:', error);

else

console.log(transcript.results[0].alternatives[0].transcript);

});

}

 

 

HOW TO RUN ABOVE PROGRAM:

/***********************************************************************************
 INSTRUCTIONS:

Step 0: Check the environment setup. (Should installed nodejs,Remove all errors if any).
Step 1: Navigate terminal/command prompt to this directory.
Step 2: Run command:  node FILE_NAME.js;
Step 3: See the message  in console log;
Step 4: if executed Step 3 successfully then you have text message according to audio. Otherwise go to Step 0.

**************************************************************************************/