BigSpeed Video Chat SDK 3.0

1.42 MB

Publisher Description

BigSpeed Video Chat SDK is a set of two COM components (Client and Server) that
lets you set up a private video chat network for secure messaging.
The transfered data are scrambled using on-the-fly 128-bit AES encryption. The security is provided in two different modes: symmetric encryption with shared secret key and asymmetric encryption with 1024-bit public/private keys.
The server is responsible for keeping information on and authentication of online peers.
All peers connected to a particular server build a single private community.
There is adjustable video frame quality and motion detection for better video compression
A lot of badwidth can be saved by not sending any frame which is not quite different than the last one.
Ability is provided to conduct one-to-one or or one-to-many voice/video sessions.
In addition, the average bitrate is reduced thanks to the silence compression. In the encoder, a Video activity detector with an adjustable trigger level is used to distinguish between regions with normal speech activity and those with silence or background noise.
Significant echo suppression is achieved using a robust double talk detector.
Capability to mute recording and mute playback is implemented.
The incoming and outgoing audio data are available in raw PCM format for visualization in the application.
Two special events notify about signal overloading (possible distorsions) and transmission delays (network congestions).
Two different kind of text information can be exchanged between peers: alert and chat messages.
File transfer capability is implemented for direct file exchange between peers.
BigSpeed Video Chat SDK utilizes an elegant event-driven paradigm for easy integration into Windows applications.A special attention is paid to provide responsive user interface while avoiding multithreading problems.
Sample applications are included in Visual Basic 2005 and Delphi 7.

Program Details


Publisher BigSpeed Computing Inc.
Released Date 2008-06-13
Languages English


Category Development
Subcategory Components & Libraries

System requirements

Operating systems windows, windows-mobile

Download information

File size 1.42 MB
Total downloads 253


License model Free
Price N/A

Version History

» version 3.0   -   posted on 2008-06-13

EULA - End User License Agreement

License for using BigSpeed Video Chat SDK (hereinafter referred to as this Software) from BigSpeed Computing Inc.

By using the information contained in this document you agree to be and are hereby bound by the terms of this License Agreement. If you do not agree to the terms of this Agreement, do not use the information contained in this document.

BigSpeed Computing grants Licensee the non-exclusive license to use this Software on a single computer at any given time for the sole purpose of developing any number of end user applications, providing that each application adheres to the following conditions:
(a) The application may not compete with this Software.
(b) The application may not expose the functionality of this Software through a programmable interface.

It is forbidden to use the library for the production of developer tools, components or libraries.

There are two licensing options available depending on your needs.

If you have not paid for this Software, you are hereby granted a Freeware License to use the Free Edition as described below.

If you have paid the appropriate fee for this Software, you are hereby granted a Registered license to use the Base/Plus Editions as described below.

You may use the Free Edition of BigSpeed Video Chat SDK for the purpose of developing end user applications, providing that each application shall only be used for purposes that neither directly nor indirectly have any commercial implications. You may redistribute the binary code of the Free Edition with your completed application.
The application MUST acknowledge this Software in a reasonable place (Help file, About box etc).

If this Software is to be used in a commercial product, or incorporated into anything that is to be sold to a third party, then a Registered License must be purchased from BigSpeed Computing.

The Free Edition distribution package may be freely distributed, provided it is not modified in any way. No person or company may charge a fee for the distribution of BigSpeed Video Chat SDK without written permission from the copyright holder.

You may use the Base/Plus Editions of BigSpeed Video Chat SDK for the purpose of developing end user commercial applications. A Registered License is issued to a specific company or organisation, and entitles that organisation to incorporate the binary code of this Software into commercial applications under the Licensee's brand name. There is no restriction on the number of products, or product types, incorporating the library binary code.

If Licensee has purchased a "multi-developer" license, this Software may be used on more than one computer
at Licensee's premises by the number of software developers associated with the multi-developer license.


BigSpeed Computing Inc. cannot be held responsible under any circumstances for damages of any character (including, but not limited to, direct or indirect damages resulting from the loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use or inability to use this Software.

This software is provided under license on an "AS IS" basis, without warranty of any kind, expressed or implied, including without limitation, implied warranties of merchantibility and fitness for a particular purpose. BigSpeed Computing Inc. or any third party involved in the creation, production, or delivery of this Software, cannot be held responsible under any circumstances, for any direct or indirect damage, including loss of profits, interruption of business activities, or other, faced by the user of this Software, even in the case that BigSpeed Computing Inc. has been advised of such damages.

The user assumes responsibility for the result or performance of this Software. BigSpeed Computing Inc. may, at any time, revoke this license by notifying the user of this Software. The user may cancel his license to use the product by destroying or erasing all copies of this Software.

BigSpeed Video Chat SDK, including its code, documentation, appearance, structure, and organization is an exclusive product of BigSpeed Computing Inc., who retains the property rights to this Software, its copies, modifications, or merged parts.

(c) 2005 BigSpeed Computing Inc. - Mastering algorithms

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Downloads last week: 0
Release Date: 2008-06-13
Publisher: BigSpeed Computing Inc.
Operating System: windows, windows-mobile