Audio Capture

When searching for a solution to capture, record, broadcast, or archive a physical or video conference, using the right hardware is of utmost importance. While there are many companies that offer their services for the recording of lectures, seminars, and conferences, doing this yourself can be challenging without the proper hardware and software.

Of course, high-end solutions like Sonic Foundry MediaSite have been in the business for a long time and definitely will do the job if you are prepared to pay the price, yet recording a lecture shouldn't have to involve paying astronomical setup and maintenance fees on top of all the expensive equipment that you are purchasing.

Conference hardware consists of three major components: capture hardware, network infrastructure, and repository. The capture hardware consists of a frame grabber used for converting a VGA or DVI feed from the presenter's laptop or computer to a digital format that can be recorded or broadcast to the web. Furthermore, the capture device also digitizes an analog audio feed from the microphone and video feed of the presentation itself. While the bulk of this hardware is extremely expensive, devices such as the Lecture Recorder retail for a reasonable price and are simple to set up and maintain.

In order for the capture hardware to send the digital version of the lecture to viewers on the internet or to a server where the recorded lecture can be stored, a network infrastructure needs to be in place. For most frame grabber-based devices, a 100 megabit or Gigabit Ethernet network is sufficient, and a separate channel is not required.

Finally, a repository consists of a server, most commonly FTP, that archives all the data sent to it from the Lecture Recorder or capture hardware. Users are then able to access these recordings through the Internet.

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