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Size of ATSC files?
Category: Computers > Graphics Asked by: doctorow-ga List Price: $5.00 |
Posted:
18 Apr 2002 17:16 PDT
Expires: 25 Apr 2002 17:16 PDT Question ID: 1097 |
How much space would one hour of ATSC-encoded, cleartext video occupy on a harddrive (without compression beyong any that are part of ATSC)? |
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Re: Size of ATSC files?
Answered By: cindy-ga on 18 Apr 2002 17:56 PDT Rated: |
Hi Doctorow, According to the Advanced Television Technology Center: http://www.attc.org/interop.pdf “Because of the extremely high bit-rate of ATSC transport material, each 14- minute transport stream fills approximately 1.9GB of hard drive space.“ Which is corroborated by the information at AccessDTV.com: http://www.accessdtv.com/pages/adtv_questions.htm#q35 ”To record 30 minutes of full-blown HDTV requires about 4GB. Remember, HDTV is delivered at 19.4 megabits per second!” According to this information, 1 hour of ATSC-encoded video would require just over 8GB of hard drive space. Other useful URLs: Layperson explanation of ATSC at whatis.com http://whatis.techtarget.com/definition/0,,sid9_gci331797,00.html Search terms used: ATSC encoded video "hard drive space" Best regards, Cindy |
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