Speech To Text Convert
Hello Friends, Welcome to try to more learn easy way to convert speech/audio to text format.
Here We’ll show you speech to text conversion without google cloud or any other external server. You can convert speech to text only with html and javasript code.
Let’s Start with basic HTML
In this section we’ll provide three buttons
- Start Recognition
- Pause Recognition
- Save Recognition
Most important is that first check your audio devices(mic/headphone) connected properly.
When we click on Start Recognition button then browser detect the mic to get audio. In the Start Recognition button we have set an id “start-record-btn” which will use in our js code to get audio. You can see below code.
<!-- Html Code -->
<button id="start-record-btn" title="Start Recording">Start Recognition </button>
<!-- Javascript Code -->
<script>
$('#start-record-btn').on('click', function(e) {
if (noteContent.length) {
noteContent += ' ';
}
recognition.start();
});
</script>Pause Recognition button stop to get audio from mic. When you’ll have to pause or stop speech to text conversion then you can use Pause Recognition button. In the Pause Recognition button we have set an id “pause-record-btn” which will use in js code to stop to get audio.
<!-- Html Code -->
<button id="pause-record-btn" title="Pause Recording">Pause Recognition</button>
<!-- Javascript Code -->
<script>
$('#pause-record-btn').on('click', function(e) {
recognition.stop();
instructions.text('Voice recognition paused.');
});
</script>Save Recognition button save the your audio to as text. In this button we have set an id “save-note-btn”. This id will use in the js code to convert audio to text.
<!-- Html Code -->
<button id="save-note-btn" title="Save Note">Save Note</button>
<!-- Javascript Code -->
<script>
$('#save-note-btn').on('click', function(e) {
recognition.stop();
if(!noteContent.length) {
instructions.text('Could not save empty note. Please add a message to your note.');
}
else {
// Save note to localStorage.
// The key is the dateTime with seconds, the value is the content of the note.
saveNote(new Date().toLocaleString(), noteContent);
// Reset variables and update UI.
noteContent = '';
renderNotes(getAllNotes());
noteTextarea.val('');
instructions.text('Note saved successfully.');
}
})
</script>This is very easy and fast working code. You need to create only one html and one js file then speech to text will work.
index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Voice Controlled Notes App</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/shoelace-css/1.0.0-beta16/shoelace.css">
<link rel="stylesheet" href="styles.css">
</head>
<body>
<div class="container">
<h1>Voice Controlled Notes App</h1>
<p class="page-description">A tiny app that allows you to take notes by recording your voice</p>
<p><a class="tz-link" href="https://tutorialzine.com/2017/08/converting-from-speech-to-text-with-javascript">Read the full article on Tutorialzine »</a></p>
<h3 class="no-browser-support">Sorry, Your Browser Doesn't Support the Web Speech API. Try Opening This Demo In Google Chrome.</h3>
<div class="app">
<h3>Add New Note</h3>
<div class="input-single">
<textarea id="note-textarea" placeholder="Create a new note by typing or using voice recognition." rows="6"></textarea>
</div>
<button id="start-record-btn" title="Start Recording">Start Recognition</button>
<button id="pause-record-btn" title="Pause Recording">Pause Recognition</button>
<button id="save-note-btn" title="Save Note">Save Note</button>
<p id="recording-instructions">Press the <strong>Start Recognition</strong> button and allow access.</p>
<h3>My Notes</h3>
<ul id="notes">
<li>
<p class="no-notes">You don't have any notes.</p>
</li>
</ul>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="script.js"></script>
</body>
</html>script.js
try {
var SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
var recognition = new SpeechRecognition();
}
catch(e) {
console.error(e);
$('.no-browser-support').show();
$('.app').hide();
}
var noteTextarea = $('#note-textarea');
var instructions = $('#recording-instructions');
var notesList = $('ul#notes');
var noteContent = '';
// Get all notes from previous sessions and display them.
var notes = getAllNotes();
renderNotes(notes);
/*-----------------------------
Voice Recognition
------------------------------*/
// If false, the recording will stop after a few seconds of silence.
// When true, the silence period is longer (about 15 seconds),
// allowing us to keep recording even when the user pauses.
recognition.continuous = true;
// This block is called every time the Speech APi captures a line.
recognition.onresult = function(event) {
// event is a SpeechRecognitionEvent object.
// It holds all the lines we have captured so far.
// We only need the current one.
var current = event.resultIndex;
// Get a transcript of what was said.
var transcript = event.results[current][0].transcript;
// Add the current transcript to the contents of our Note.
// There is a weird bug on mobile, where everything is repeated twice.
// There is no official solution so far so we have to handle an edge case.
var mobileRepeatBug = (current == 1 && transcript == event.results[0][0].transcript);
if(!mobileRepeatBug) {
noteContent += transcript;
noteTextarea.val(noteContent);
}
};
recognition.onstart = function() {
instructions.text('Voice recognition activated. Try speaking into the microphone.');
}
recognition.onspeechend = function() {
instructions.text('You were quiet for a while so voice recognition turned itself off.');
}
recognition.onerror = function(event) {
if(event.error == 'no-speech') {
instructions.text('No speech was detected. Try again.');
};
}
/*-----------------------------
App buttons and input
------------------------------*/
$('#start-record-btn').on('click', function(e) {
if (noteContent.length) {
noteContent += ' ';
}
recognition.start();
});
$('#pause-record-btn').on('click', function(e) {
recognition.stop();
instructions.text('Voice recognition paused.');
});
// Sync the text inside the text area with the noteContent variable.
noteTextarea.on('input', function() {
noteContent = $(this).val();
})
$('#save-note-btn').on('click', function(e) {
recognition.stop();
if(!noteContent.length) {
instructions.text('Could not save empty note. Please add a message to your note.');
}
else {
// Save note to localStorage.
// The key is the dateTime with seconds, the value is the content of the note.
saveNote(new Date().toLocaleString(), noteContent);
// Reset variables and update UI.
noteContent = '';
renderNotes(getAllNotes());
noteTextarea.val('');
instructions.text('Note saved successfully.');
}
})
notesList.on('click', function(e) {
e.preventDefault();
var target = $(e.target);
// Listen to the selected note.
if(target.hasClass('listen-note')) {
var content = target.closest('.note').find('.content').text();
readOutLoud(content);
}
// Delete note.
if(target.hasClass('delete-note')) {
var dateTime = target.siblings('.date').text();
deleteNote(dateTime);
target.closest('.note').remove();
}
});
/*-----------------------------
Speech Synthesis
------------------------------*/
function readOutLoud(message) {
var speech = new SpeechSynthesisUtterance();
// Set the text and voice attributes.
speech.text = message;
speech.volume = 1;
speech.rate = 1;
speech.pitch = 1;
window.speechSynthesis.speak(speech);
}
/*-----------------------------
Helper Functions
------------------------------*/
function renderNotes(notes) {
var html = '';
if(notes.length) {
notes.forEach(function(note) {
html+= `<li class="note">
<p class="header">
<span class="date">${note.date}</span>
<a href="#" class="listen-note" title="Listen to Note">Listen to Note</a>
<a href="#" class="delete-note" title="Delete">Delete</a>
</p>
<p class="content">${note.content}</p>
</li>`;
});
}
else {
html = '<li><p class="content">You don\'t have any notes yet.</p></li>';
}
notesList.html(html);
}
function saveNote(dateTime, content) {
localStorage.setItem('note-' + dateTime, content);
}
function getAllNotes() {
var notes = [];
var key;
for (var i = 0; i < localStorage.length; i++) {
key = localStorage.key(i);
console.log(i)
console.log(key)
if(key.substring(0,5) == 'note-') {
notes.push({
date: key.replace('note-',''),
content: localStorage.getItem(localStorage.key(i))
});
}
}
console.log(notes)
return notes;
}
function deleteNote(dateTime) {
localStorage.removeItem('note-' + dateTime);
}
Very good
Your ability to connect with the reader on both an intellectual and emotional level is truly rare.