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.NET Forum / .NET Framework / New Users / August 2005Voice chat system from scratch
Hi, I am an IT student majoring in computer network systems but I am interested and I have alot of courage to create my own Client/Server Voice chat using VB, my questions is: where do i start? and what do i need? your response shall be appreciated. Dave, > I am an IT student majoring in computer network systems but I am > interested > and I have alot of courage to create my own Client/Server Voice chat using > VB, my questions is: where do i start? and what do i need? In 1999 I wrote a magazine article about a system capable of transmitting voice over TCP/IP. Back then, I used Borland's Delphi, but the same principles apply to Visual Basic as well. To write such a chat on your own, here's basically what you need to do: on both clients, you need to record audio from the microphone, and divide the sound into blocks, and probably compress it. Then, you would transmit the audio packets over the wire to the other person, decode the package, and play it out. Windows API (or DirectX) has the functions you need to record and play back audio, .NET doesn't directly have such classes. If you live close to a good library, you might want to find my original article: Magazine: Delphi Informant Publisher: Informant Communications Group, USA Jul/1999: "NetSound: Streaming Audio over a TCP/IP Network". The magazine doesn't exists anymore I'm afraid, but you can buy the complete works on CD. Check http://www.informant.com/ for details. Of course, Google might also give you insights into similar projects. Hope this helps.  SignatureRegards, Mr. Jani Järvinen C# MVP Helsinki, Finland janij@removethis.dystopia.fi http://www.saunalahti.fi/janij/ Thanks for that answer, I am willing to buy that Delphi Informant CD-ROM but I have a question: would the article "NetSound: Streaming Audio over a TCP/IP Network" tell in detail the steps including the code that is used for creating the voice chat system? Thanks in advance. > Dave, > [quoted text clipped - 27 lines] > > Hope this helps. Dave, > I have a question: would the article "NetSound: Streaming Audio over a > TCP/IP > Network" tell in detail the steps including the code that is used for > creating the voice chat system? Unfortunately no, the article won't tell you exactly that. However, the article will show you how to record and send audio in a single direction ("half duplex") and play it back on the other end. So, the system isn't a full-blown chat system, but you could quite easily extend it to be such a thing. SignatureRegards, Mr. Jani Järvinen C# MVP Helsinki, Finland janij@removethis.dystopia.fi http://www.saunalahti.fi/janij/ Dear Sir, I have finished the process of designing a voice chat as an ActiveX which I am going to integrate on my website allowing clients to run it, and I have the server online on the other side. I am trying to develop a Banning system, to ban users with irregular behaviour, I tried to ban them by IP, but they can always change IP and come in, what other banning methods can I use ? and how do I go about it ? > Dave, > [quoted text clipped - 9 lines] > isn't a full-blown chat system, but you could quite easily extend it to be > such a thing. > Dear Sir, I have finished the process of designing a voice chat as an ActiveX > which I am going to integrate on my website allowing clients to run it, and I > have the server online on the other side. I am trying to develop a Banning > system, to ban users with irregular behaviour, I tried to ban them by IP, but > they can always change IP and come in, what other banning methods can I use ? > and how do I go about it ? Since it's on a Web page, i would issue all the users with username and passwords then require them to login via a login page before they are allowed to view the page with the ActiveX. Of course, it also depends on your target. If it is an intranet application, then you could possibly use Windows authentication instead. By the way, what technology / tools did you finally use to do your voice chat? I'll have to start a similar project very soon and that would help me a lot to have some clues about what i could use to do that. Thanks Mehdi, I used VB, and transferred voice over WINSOCK as bytes. > Since it's on a Web page, i would issue all the users with username and > passwords then require them to login via a login page before they are [quoted text clipped - 7 lines] > > Thanks > Hi, > I am an IT student majoring in computer network systems but I am interested > and I have alot of courage to create my own Client/Server Voice chat using > VB, my questions is: where do i start? and what do i need? your response > shall be appreciated. Dave, Check with Carl Franklin at franlins.net He demonstrated one that he wrote last year. He could probably give you some pointers. Good luck! although each user has his own password, some can register more passwords and login unbanned, so we need something that bans the unique user/machine > > Hi, > > I am an IT student majoring in computer network systems but I am interested [quoted text clipped - 8 lines] > He demonstrated one that he wrote last year. He could probably give you > some pointers. Good luck! Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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