I'm currently trying to make Opus packets work with Web Audio API. The problem is however, while it should be natively supported by FireFox and Chrome, only FireFox can decode a stream of OPUS samples using decodeAudioData from the Web Audio API. Chrome does recognize the file when I drag the opus file into the browser and it also does play it! So I'm wondering that I may be doing something wrong here causing failure in Chrome.
Then I used some sample code from http://awm.jp/~yoya/js/audio/meow.html just load an opus file and try to decode it. Again Firefox does, and Chrome doesn't. So I'm wondering if someone can confirm my finding or tell me what I'm doing wrong here. Below is the modified version from the earlier link. Thanks!
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-15">
<title> decodeAudioData sample </title>
</head>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script type="text/javascript">
//$(document).ready(function() {
var catMeowingBuffer = null;
window.AudioContext = window.AudioContext||window.webkitAudioContext;
var context = new AudioContext();
function onError(err) {
console.log("unable to decode");
}
function loadCatSound(url) {
var request = new XMLHttpRequest();
request.open('GET', url, true);
request.responseType = 'arraybuffer';
// Decode asynchronously
request.onload = function() {
context.decodeAudioData(request.response, function(buffer) {
catMeowingBuffer = buffer;
var src = context.createBufferSource();
src.buffer = catMeowingBuffer
src.connect(context.destination);
src.start(0);
}, onError);
}
request.send();
}
loadCatSound("opus.opus");
function playCatSound() {
if (catMeowingBuffer !== null) {
var src = context.createBufferSource();
src.buffer = catMeowingBuffer
src.connect(context.destination);
src.start(0);
}
}
//});
</script>
<body>
<h1> decodeAudioData sample </h1>
<button onclick="playCatSound();"> playCatSound </button>
<hr>
<address></address>
</body> </html>
This is a bug in Chrome. See https://code.google.com/p/chromium/issues/detail?id=409402.
Related
I would like to know if it is possible to capture the audio that plays through the Websocket protocol using Chrome DevTools
Under Network, I do see a Websocket entry after the audio begins to play.
It is listed as wss://eastus.tts.speech.microsoft.com/cognitiveservices/websocket/v1?Authorization=RandomCharacterConnectionId=IDGoesHere
I checked it's Headers and Messages but it seems there is no way to get a hold of the audio file.
Any suggestions?
Example is here
https://azure.microsoft.com/en-us/services/cognitive-services/text-to-speech/
Thanks
If you want to save the resulting audio as .mp3 file, just try code below:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Microsoft Cognitive Services Speech SDK JavaScript Quickstart</title>
<meta charset="utf-8" />
</head>
<body>
<button id="startSpeakTextAsyncButton" onclick="synthesizeSpeech()">speak</button>
<script src="microsoft.cognitiveservices.speech.sdk.bundle.js"></script>
<script>
function synthesizeSpeech() {
var speechConfig = SpeechSDK.SpeechConfig.fromSubscription("", "");
speechConfig.SpeechSynthesisLanguage = "en-US";
const synthesizer = new SpeechSDK.SpeechSynthesizer(speechConfig);
synthesizer.speakTextAsync(
"Hello , this is a demo about saving result of TTS API as a file",
result => {
synthesizer.close();
const link = document.createElement( 'a' );
link.style.display = 'none';
document.body.appendChild( link );
const blob = new Blob( [result.audioData], { type: 'audio/mp3' } );
const objectURL = URL.createObjectURL( blob );
link.href = objectURL;
link.href = URL.createObjectURL( blob );
link.download = 'data.mp3';
link.click();
},
error => {
console.log(error);
synthesizer.close();
});
}
</script>
</body>
</html>
structure:
Result:
I'm using nodebob for making a nodewebkit (nw.js) desktop app, but the MP4 videos wouldn't play in it ... what should I do?
I tried putting ffmpegso.dll in the same folder where my release exe is but no use
If i use webm video the following code works but for mp4 it says file not found
Here's the code I'm using
<html>
<head>
<meta charset='utf-8'>
<title>Secure Video Browsing</title>
<link rel="icon" type="image/png" href="hammer.png" />
<link rel="stylesheet" href="js/floplayer/skin/skin.css">
<!-- 3. flowplayer -->
<script src="js/floplayer/flowplayer.min.js"></script>
<script>
var encryptor = require('file-encryptor');
var $ = require('jquery');
var path = require('path');
var gui = require('nw.gui');
var win = gui.Window.get();
var key = 'My Super Secret Key';
var options = {algorithm: 'aes256'};
window.addEventListener('keydown', function (e) {
e.preventDefault();
});
var execPath = path.dirname(process.execPath);
$(document).ready(function () {
$(".close").click(function () {
win.close();
});
encryptor.decryptFile(execPath + '/wild.eng', execPath + '/wild.mp4', key, options, function (err) {
var container = document.getElementById("player");
flowplayer(container, {
clip: {
sources: [
{type: "video/mp4",
src: execPath + '/wild.mp4'}
]
}
});
});
});
</script>
</head>
<body>
<button class="close">Close</button>
<div id="player">
</div>
</body>
The easiest way to enable proprietary codecs is to download community binaries for the matching NW.js version number you are using:
https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases
More information is here:
https://nwjs.readthedocs.io/en/latest/For%20Developers/Enable%20Proprietary%20Codecs/
I am using a sample project from auth0.com to customize the login page for my app and enable social media login. However I encounter some problem when I try to deploy it to bluemix.
The video tutorial I follow is https://www.youtube.com/watch?v=sHhNoV-sS_I&t=559s
however the sample project is a little bit different from the one in video. It required the command "npm serve" to run it. When I push my project using cf push it shows noappdecked. How can I deploy my project to bluemix?
the app.js code and html code is like
<!DOCTYPE html>
<html>
<head>
<title>Auth0-VanillaJS</title>
<meta charset="utf-8">
<!-- Auth0 lock script -->
<script src="//cdn.auth0.com/js/lock/10.3.0/lock.min.js"></script>
<script src="auth0-variables.js"></script>
<script src="app.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<img alt="avatar" id="avatar" style="display:none;">
<p>Welcome <span id="nickname"></span></p>
<button type="submit" id="btn-login">Sign In</button>
<button type="submit" id="btn-logout" style="display:none;">Sign Out</button>
</body>
window.addEventListener('load', function() {
var lock = new Auth0Lock(AUTH0_CLIENT_ID, AUTH0_DOMAIN);
// buttons
var btn_login = document.getElementById('btn-login');
var btn_logout = document.getElementById('btn-logout');
btn_login.addEventListener('click', function() {
lock.show();
});
btn_logout.addEventListener('click', function() {
logout();
});
lock.on("authenticated", function(authResult) {
lock.getProfile(authResult.idToken, function(error, profile) {
if (error) {
// Handle error
return;
}
localStorage.setItem('id_token', authResult.idToken);
// Display user information
show_profile_info(profile);
});
});
//retrieve the profile:
var retrieve_profile = function() {
var id_token = localStorage.getItem('id_token');
if (id_token) {
lock.getProfile(id_token, function (err, profile) {
if (err) {
return alert('There was an error getting the profile: ' + err.message);
}
// Display user information
show_profile_info(profile);
});
}
};
var show_profile_info = function(profile) {
var avatar = document.getElementById('avatar');
document.getElementById('nickname').textContent = profile.nickname;
btn_login.style.display = "none";
avatar.src = profile.picture;
avatar.style.display = "block";
btn_logout.style.display = "block";
};
var logout = function() {
localStorage.removeItem('id_token');
window.location.href = "/";
};
retrieve_profile();
});
You would use the package.json method documented at https://console.ng.bluemix.net/docs/runtimes/nodejs/index.html#nodejs_runtime , first to declare the serve package as one of your dependencies, then to indicate what the scripts.start script should do (which is run npm serve). You can use npm init (https://docs.npmjs.com/cli/init) to create a starting package.json file if you don't already have one.
I am trying to build a WAMP server using NodeJS, wamp.io, and websocket.io.
Here is the server-side code :
var wsio = require('websocket.io');
var wamp = require('wamp.io');
var socketServer = wsio.listen(9000);
var wampServer = wamp.attach(socketServer);
And I am trying to test the pub-sub via browser using AutobahnJS. Here is the client-side code :
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Wamp Example</title>
</head>
<body>
<ul class="pages">
<li>
<button id="socket">Call</button>
</li>
</ul>
<script src="https://code.jquery.com/jquery-1.10.2.min.js"></script>
<script src="https://autobahn.s3.amazonaws.com/autobahnjs/latest/autobahn.min.jgz">
</script>
<script>
AUTOBAHN_DEBUG = true;
</script>
<script>
var connection = new autobahn.Connection({
url: 'ws://localhost:9000/',
realm: 'realm1'
});
console.log(connection);
connection.onopen = function (session) {
console.log(session);
// session is an instance of autobahn.Session
};
connection.onclose = function(reason, detail){
console.log(reason);
}
connection.open();
</script>
</body>
</html>
But the connection always got this error :
WebSocket connection to 'ws://localhost:9000/' failed: Error during WebSocket handshake: Sent non-empty 'Sec-WebSocket-Protocol' header but no response was received
This part of code return 'unreachable'
connection.onclose = function(reason, detail){
console.log(reason);
}
Is there any code I missed?
I have an application, which streams an MP3 using Node.JS. Currently this is done through the following post route...
app.post('/item/listen',routes.streamFile)
...
exports.streamFile = function(req, res){
console.log("The name is "+ req.param('name'))
playlistProvider.streamFile(res, req.param('name'))
}
...
PlaylistProvider.prototype.streamFile = function(res, filename){
res.contentType("audio/mpeg3");
var readstream = gfs.createReadStream(filename, {
"content_type": "audio/mpeg3",
"metadata":{
"author": "Jackie"
},
"chunk_size": 1024*4 });
console.log("!")
readstream.pipe(res);
}
Is there anyone that can help me read this on the client side? I would like to use either JPlayer or HTML5, but am open to other options.
So the real problem here was, we are "requesting a file" so this would be better as a GET request. In order to accomplish this, I used the express "RESTful" syntax '/item/listen/:name'. This then allows you to use the JPlayer the way specified in the links provided by the previous poster.
I'm assuming you didn't bother visiting their site because had you done so, you would have seen several examples of how to achieve this using HTML5/JPlayer. The following is a bare-bones example provided by their online developer's documentation:
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6/jquery.min.js"></script>
<script type="text/javascript" src="/js/jquery.jplayer.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#jquery_jplayer_1").jPlayer({
ready: function() {
$(this).jPlayer("setMedia", {
mp3: "http://www.jplayer.org/audio/mp3/Miaow-snip-Stirring-of-a-fool.mp3"
}).jPlayer("play");
var click = document.ontouchstart === undefined ? 'click' : 'touchstart';
var kickoff = function () {
$("#jquery_jplayer_1").jPlayer("play");
document.documentElement.removeEventListener(click, kickoff, true);
};
document.documentElement.addEventListener(click, kickoff, true);
},
loop: true,
swfPath: "/js"
});
});
</script>
</head>
<body>
<div id="jquery_jplayer_1"></div>
</body>
</html>