Thread: Java Voice chat over the internet.

I want to create a voice chat application in pure java socket programming.
I used UDP protocol to transfer recorded voice from one client to another but when i test it over the internet voice is not comming continuously.
As i am new to this voice chat application, someone may suggest what should i do for getting continuous voice.

The Scenario is like this.
Flow of voice chat as this shows only one way communication-
--------------------------------------------------------------------------------------------
FLOW of data
--------------------------------------------------------------------------------------------
Client1------------------------------>> Server ------------------------------------>>Client2

Client1:
Reading 1KB voice buffer from TargateDataLine then create a voice packet and sent to server.

Server: Receive from client1 and then send to client2.

Client2: Receive the UDP packet and get voice data then play.


-------------------------------------------------------------------------------------------

Also facing the bandwidth up and down problem.
What should be the minimum bandwidth to use voice chat. Ex- skype required 30KBPS udloading/downloading speed.


Thanks in advance.

Welcome back!

Thread moved.

This I would say is a fairly complex problem.

But there are already standards in place for Real-Time Conversational Applications, like RTP
and SIP (Session Initiation Protocol) for establishing multimedia connections.
And I do believe implementing these protocols will make your life a lot easier than trying to do this from scratch (if that's what you're trying to).

So unless you're already using RTP, I would at least start there:
RTP: About RTP and the Audio-Video Transport Working Group
https://java.net/projects/jrtp

And some info on SIP:
SIP - voip-info.org
https://jsip.java.net/

Not sure if this is what you were hoping for, and I might have misunderstood the problem, but it looks to me to be such a monumental task that this is the best I can do

Unless you want to discuss the specific underlying problems of packet ordering, playback synchronization, network jittering (++) when implementing real-time audio over UDP.
But I believe you would have to specify in more detail to get the help you want...

Cheers,
Martin

You should try looking into JMF studio, I think you gain access to your webcam from there.