What are good resources to create dedicated channel audio chat application using html5 web sockets? Is it possible? Actually I'm imaginning to develop a voice chat application using html5 web sockets. Can anyone help me out in this?
Thanks in advance
I don't think that developing a voice chat application with pure html5 is possible at the moment, as most browsers don't support audio recording yet. You'll be able to use navigator.getusermedia (W3C Draft) for that purpose in the future, but AFAIK, this method is not supported by any mainstream browser yet. So I guess, you'll have to fall back to proprietary technology like flash to develop a web based audio chat system that presently works for most users.
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Is there a way to intercept and record all sounds happening in a browser tab using Audio API or some other method.
Let's say I am watching simultaneously three YouTube videos in one tab, can I record that using Audio API?
This isn't really directly possible (for security and privacy reasons). As a user, it's possible to set it up - by setting a loopback audio driver as your audio output driver for the YT tabs - but not in a totally automated way.
(This is a duplicate, btw - of Cross application audio analysis with the Web Audio API, et al.)
You can use http://goldfirestudios.com/blog/104/howler.js-Modern-Web-Audio-Javascript-Library this javascript library.
This link has full documentation, features and usage. This library works great for games and audio-related web apps. Hope this will help you.
I'm trying to implement audio recording in a website. Basically the user should be able to press a button and speak something into the microphone. The recorded audio should then be sent to the server for further processing. I realise that you can do this with Flash, but for now I'm trying to avoid that.
I found several resources on the internet about it (i.e. link) but as it seems, this functionality is not widly supported yet. I experienced differences betweet the used browser and between the used operating system. For instance, the Chrome Browser doesn't seem to access any microphone on Linux correctly. So i was wondering if anyone knows a good resource to dive into this. Or maybe someone tried to set up something like this himself, and can help with some suggestions about where the limitations of HTML5 and the JavaScript Web Audio API are right now.
Thanks!
As of Chrome Version 27.0.1453.56 beta Mac, audio recording works with this demo application https://github.com/mattdiamond/Recorderjs
This app returns back a WAV file for the user which can be uploaded to the server.
If you want a truly robust solution that works on most desktop web browsers, you may need to resort to Flash.
This article covers up pretty well the current state of audio video capture possibilites using HTML5:
http://hdfvr.com/html5-video-recording
Also for just audio capture, here's a gitHub project that records audio to mp3 directly from the browser:
https://github.com/nusofthq/Recordmp3js
I want to make a very simple web app that takes the audio signal from the phone's microphone and varies some simple graphics on the page in as near to real-time as possible.
I'd prefer the app to be web-based (rather than iOS/Android apps) so that users can be directed to the page in a more rapid way. (I.e. go to sh.ort/url and the web app starts straight away)
Is this currently possible?
I'm not sure how well supported the web audio API is, or some of the more modern HTML5 features.
Thanks
This gives you a nice tutorial on how to record audio through the HTML5 API: http://www.html5rocks.com/en/tutorials/getusermedia/intro/
Unfortunately, as seen in this post, Apple doesn't support any API for this yet: Mobile Safari Audio Recording from Microphone
I have built a chat client which is presently working on javascript, html5 and java (Hibernate). I am planning to add video chat over it. I do not want to add flash, so the only way to obtain webcam access, to my knowledge, was to use HTML5 other than silverlight (not so great reviews) and applet. The problem is how do I send the video stream of one chat user to the server and back to the other chat user who is on the other side of the chat. I have searched and found out that RTSP is not going to be implemented in Chrome. So do I use HTTP for this? If so, could you provide me with some guidelines. If not what are my other options?
I'm on a new project that requires to stream audio files (mp3) and record voice messages.. of course my first option was to use flash. But the problem is that the customer wants the website to be iPhone friendly.
Is there any technologie that allows me to play and record voice messages just with javascript/php/xhtml?
And of course, the website should be fully compatible with firefox, safari, internet explorer, etc.
I googled it and everything I found was flash-based.
but if you have any clue about it, please let me know.
No. Not even the new-ish HTML5 has any features to record audio. You'd need to go through Flash or Java - but that would rule out iPhone.
if you want to record sound you should do it with the new HTML5's api's, you can read more about it on
https://labs.ericsson.com/developer-community/blog/beyond-html5-audio-capture-web-browsers
However, this is theory, in reality no browsers support it and there is no way to do it. So in short: you cannot do what you ask.
What you could do is create an iPhone native app for those who want to use iPhone, and a flash website for those who want to access it with a regular browser.