fiscal 发表于 2025-3-26 23:52:38
Introduction,s introduced back in the eighties to provide an early medium for supplementary digital information in analog TV. For young people, this type of information is such a natural part of viewing, e.g. as electronic program guide, as if there had been teletext from the beginnings of television.EVEN 发表于 2025-3-27 01:54:11
Erziehung als die Vermittlung von Bedeutungge enough, the picture quality is often better than via broadband cable since intermodulation products sometimes result in visible interference due to the multiple channel allocation in broadband cable.medium 发表于 2025-3-27 06:57:56
Broadband Cable Transmission According to DVB-C,ge enough, the picture quality is often better than via broadband cable since intermodulation products sometimes result in visible interference due to the multiple channel allocation in broadband cable.相符 发表于 2025-3-27 13:00:55
http://reply.papertrans.cn/28/2799/279885/279885_34.pngjaunty 发表于 2025-3-27 13:54:33
http://reply.papertrans.cn/28/2799/279885/279885_35.pngAmplify 发表于 2025-3-27 21:50:40
The MPEG Data Stream,g pictures. However, the data signal defined in the MPEG-2 Standard can also generally carry data which have nothing at all to do with video and audio and could be Internet data, for example. And indeed, throughout the world there are MPEG applications in which it would be futile to look for video aPetechiae 发表于 2025-3-27 22:46:30
http://reply.papertrans.cn/28/2799/279885/279885_37.png失眠症 发表于 2025-3-28 05:15:59
MPEG-2 Video Coding,sting purposes, which is why they are subjected to a compression process before being processed for transmission. The 270 Mbit/s must be compressed to about 2…7 Mbit/s — a very high compression factor which, however, is possible due to the use of a variety of redundancy and irrelevance reduction mec半球 发表于 2025-3-28 07:28:48
Compression of Audio Signals to MPEG and Dolby Digital,cteristics. Before the analog audio signals are sampled and digitized, they have to be band-limited by means of a lowpass filter. Then analog-to-digital conversion is performed at a sampling rate of 32 kHz, 44.1 kHz or 48 kHz (and now also 96 kHz) and with a resolution of at least 16 bits. The 44.1拍翅 发表于 2025-3-28 13:19:45
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