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05-08-2008, 10:30 AM
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Join Date: Dec 2007
Location: India
Posts: 11
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VOIP Server Hardware Requirements
Hi Guys,
I am developing a VOIP Application using java. The development has gone quite well. The problem i am facing is When i deploy it on server it doesn't work.
Voice chat works well on my desktop both server and client. But On Server it doesn't work . What configuration do i need on server so that it can work. Is there a specific sound card to be installed.
I have a remote desktop access to the server. To run the server app i double click on it and it starts working but connection for sound socket fails
Here is the error i get :
Exception caught while passing socket to ivConnectionjavax.sound.sampled.LineUnavailableExc eption: line with format PCM_SIGNED 8000.0 Hz, 16 bit, mono, 2 bytes/frame, little-endian not supported.
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05-08-2008, 10:35 AM
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Join Date: Jul 2007
Location: Colombo, Sri Lanka
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Seems to me memory is not enough for rendering voice. I found quite same thing on a different application few years back, little-endian always described about lower memory.
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05-08-2008, 01:00 PM
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Eranga Thanks for your reply.
There is a usb sound card installed on the server
Its windows 2003 web Edition
2.80 ghz , 1 Gb Ram isnt this enuf , what do u suggest ?
Also there is plesk control panel , does this block any thing on the server
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05-08-2008, 01:37 PM
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I think you used a latest USB, 2.0?
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05-08-2008, 03:16 PM
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Originally Posted by Eranga
I think you used a latest USB, 2.0?
What does that mean ?
Does it mean usb 2.0 sound card cannot be used by java , does it need onboard sound card ? |
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05-09-2008, 05:23 AM
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No way pal. I thought you may used USB 1.0. It's not support in most of the cases of VOIP applications.
Again I told you this is because of the lower memory. Because of that system can't make the connection, and you got the line unavailable exception there.
There should be one reason too. May your connection(communication line) used some other application.
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05-09-2008, 10:53 AM
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What happened to your MIDI drivers? Update and try. It may fix the issue, because it's the protocol define the digital communication.
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05-14-2008, 11:38 AM
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New Error has popped up now!
Audiojava.lang.IllegalArgumentException: Line unsupported: interface TargetDataLine supporting format PCM_SIGNED 8000.0 Hz, 16 bit, mono, 2 bytes/frame, little-endian
Also i would like you expert opinion on the following.
- I have a remote desktop acess to this windows 2003 server (web edition).
- I usually connect to the server using RDC and then double click on server application to launch it
- This all worked fine with text chat my client apps could connect to this server app using the specified port.
Now i am doing a voice chat which makes use of sound card. if sound card not found it wont initialize and the voice socket fails.
I am a bit unsure that if i launch the app from remote desktop connection , which sound card does it uses ? does it use RDP Sound card or the Desktop sound card installed
So I thought of putting the app in the schedule task which will run like an App Service for that machine but in this case the UI will not be shown it will run in a background.
So now it starts running when server is rebooted i can see the task running in schedule task folder but now my client apps cannot find the port open and cant communicate with the server app.
In Earlier case when i launched the app from Remote desktop by double clicking it worked and my client apps found the port.
the server guys say they have installed sound card properly so what should be done so that my application starts using the local resources like it does on the desktop/ laptop
thanks for your earlier replies ..
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05-15-2008, 11:11 AM
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Eranga do i need to install some codec so that my voice chat works on the server
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05-15-2008, 12:22 PM
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I don't think so. I'm not sure but may be there is some issue with data conversion on two different sound card drivers.
Do you found such information on leaflet on the device? Or any?
And also working on remote desktop application wont be issue either. Remote desktop doesn't have any banded process.
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05-18-2008, 04:07 PM
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What do you mean by two differend sound card drives ?
I just wonder it the Application can work on my machine which has onboard sound card why it wouldnt work on server which has a sound card installed on it. Any clues ?
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05-21-2008, 06:23 AM
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I'm talking about the sound card technology. If there is two different manufactures cards in the server and client, because the technology they used to develop can cause for our application. I go the same scenario one of my firs application. One of my senior advice me to use same type of cards in development in early stages. Later develop an API to handle it for any cards.
What are your sound card models?
It can't be an issue on on-board or separate sound cards.
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