How video chat started

s, most people use the internet and all its features. Butoutput them? Video input is usually done with a video
the question is how did it all begin? Video chat iscamera or webcam. The output of video streams
something that is becoming more and more popularinvolves hardware like a monitor, television or a
because it allows the users to hear the voice of theprojector. Microphones are used to input audio
other person and see them at the same time. If youstreams into a computer and speakers allow the
think about it, who wouldn’t like to see theoutput.
person they talk while engaging in the conversation?After all the inputs and outputs, the audio and video
Video chat is also known as video conferencing. Thisstreams are compressed up to 500 times. The
was developed at the same time as the television.resulting stream is then subdivided into labeled packets,
They consisted at first of two closed-circuit televisionwhich are sent to the recipient. The codec must be the
systems that were connected through cable. NASAsame so the recipient’s hardware decodes
used this type of communication on the first mannedthe received packets, see the images and hear the
space flights. Instead of cables, two frequencies weresounds. Mostly digital networks like ISDN and IP are
used, UHF and VHF, one for each direction. This sortused. That is the basic process involved in cam chat.
of conferencing was used for broadcasting fromThere are some things that present a problem with
distant locations, but now, going one step further,this type of communication. Some people believe that
satellite links are established using special trucks.eye contact is very important in a conversation.
Because it was very expensive, this technologyTraditional telephone conversations do not allow any
couldn’t be used as part of commoneye contact, but cam chat is believed to be even
long-distance applications. Some tried to use normalworse because it seems that the interlocutor avoids
telephony networks for transmitting slow-scan video,eye contact. This is, of course, a wrong impression and
but didn’t succeed due to the lack of picturethe problem may be overcome with advancing
quality and efficient video compression technique.technology.
The 1980s marked the development of digitalIf you like cam chat, be sure to visit This website
telephony transmission networks, like ISDN. Theoffers a lot of features and on top of it all it is free.
expansion of such networks led to the appearance ofThis is the basic history of video chat. From the
the first dedicated system from companies thatstarting point to present days, cam chat has evolved
specialized on this particular area. This is how videoand can be used by everyone. It allows people to see
chat started. It was still quite costly, but throughout thethe interlocutor’s face and gestures even if
1990s, they evolved from expensive proprietarythey are half way around the world. The mentioned
equipments to rather standard technology available forwebsite also gives you the possibility to enjoy all this
the general public.for free.
In the 1990s something revolutionary was developed. IPReport this article
based cam chat was developed and along with itThis article is free for republishing
more efficient video compression. This allowed videoSource:
chat using you personal computer. The technologyRepublish this article
used is basically the digital compression of audio andAsk a Question About this Article
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