VOICE over UDP need some help here
I have attached a vi i have been working on and i am having a litte trouble. I want to do somethink like voice over ip. Currently i have a setup that broadcasts the data to a client. The mic is sent over udp to the clients speakers and vice versa. I ingore anything that comes from one's one ip address. This works just great, but the problem is i need more than 2 on at a time. I dont want to mess with entering specific ip address ect. At most i only want to have to enter ones own ip address as i have in the example.
When i start running 3 of these vi's on separate machines, i can probe the address which the data is being received, and it seems to only get data from one address, not two like i would expect. Is there a buffer being cleared when read or something? Any help would be appreciated.
Thanks
Dave
Attachments:
UDPVOICE.vi 70 KB
Here is how I have dealt with the port problem in the past (albeit, not
in labview, but lets hope LabView's usage of UDP is consistent with
other programming languages ) is you always have clients connect to
a listen port on the server. You will have a thread watching for
incoming connections on that port. When one is detected, you
create a new "personalized" connection for that client to use to
communicate with the server. Part of this process involves
assigning that conenction a new port. This assignment is
dynamic--the server just assigns some random available port (so in
other words, you don't have to hard code one in).
So once a client connects, the server responds from the new port, the
client receives that datagram and checks where it came from (address
and port) and sends all future messages to that port on the server.
Does this make sense? I'm afraid I won't be much help with
anything aside from theory as I haven't actually played with the
network functionality in labview--all my network programming comes from
C and Java.
As to combining the sounds, I'm afraid I don't know. I think the
simplest system would be a half-duplex system whereby clients can only
send data when they are not receiving it (or rather, 1 person talks at
a time). I can understand how this isn't ideal. I wonder
how this is accomplished in other, similar voice-chat programs?
One final thought: I'm not sure, but I'd be willing to make a wild stab
in the dark and say you might run into bandwidth problems if you're
transmitting an unencoded (uncompressed) voice signal. This is
undoubtably more complex than you want to get, but you might look
around for ways to reduce the amount of bandwidth you're going to
use. And if you'd like examples of programs that will allow this
kind of chat go check out Teamspeak (http://www.teamspeak.org/) or
Skype (http://www.skype.com/). Both these programs allow
multiuser voice chat (teamspeak is intended for chatting with your team
in video games). Skype is a very professional, very high quality
voice chat program that works more or less the same, with higher
quality voice. Oh and both are free
--R
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Message was edited by:
[email protected]I'm sorry but my Babel fish isn't working. bucle == loop (like English buckle, I guess)
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to use Math.pow()//longi = ((encrip.length()^(1/2))); // <-- not this
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D-
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-----Original Message-----
From: D
Sent: Tuesday, April 24, 2012 12:19 PM
To: {edited for privacy}
Subject: Question
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