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   MPEG Transmission

MPEG transmission is the process of combining, sending and managing the transmission of multiple forms of information (multimedia). A program stream is a combination of elementary streams (such as video and audio) that compose a media program (such as a television program).

A multiprogram transport streams is the combining (multiplexing) of multiple program channels (typically digital video channels) onto a signal communication channel (such as a satellite transponder channel). These channels are statistically combined in such a way that the bursty transmission (high video activity) of one channel is merged with the low-speed data transmission (low video activity) with other channels so more program channels can share the same limited bandwidth communication channel.

Figure 1.17 shows how MPEG transmission can be used to combine video, audio, and data onto one data communication channel. This example shows that multiple types of media signals are digitized and compressed and sent to a multiplexer. The multiplexer combines these signals and their associated time reference (clock) into a single program transport stream (SPTS). When the SPTS is received, a demultiplexer separates each of the media signal streams. Each media stream is decoded, adjusted in time sequenced using the reference clock and converted back into their original media form.

   MPEG Books

more details

Introduction to MPEG This book explains the basics of audio and video digitization and compression and the standard formats that are used be MPEG. You will learn about the different MPEG audio coders and video coder options. $19.99 Printed, $16.99 eBook

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