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Lossy or Lossless?
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  #61  
Old 2008-05-16, 01:24 PM
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Re: Re-encoded digital video

http://en.wikipedia.org/wiki/Lossless_data_compression

we are already there
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  #62  
Old 2008-05-16, 02:14 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by schmoe75 View Post
Quote:
Originally Posted by scratchie
Because, with an obscure 20-year-old videotape, the chances are pretty slim that there's an alternate source.
I'll be sure to pass along to the Dead peeps that its a waste of their time & energy to transfer the tapes properly and upgrade the audio, because you're fine with a standalone capture & cam audio.

The show that brought this all up to begin with was only 5 years ago. How many different sources are circulating?

Quote:
Originally Posted by scratchie
At some TV-oriented torrent sites, people plan in advance who is going to capture what show, so that the members know that they're going to get a high-quality capture. If sites that specialize in Xvid uploads can go to that trouble, why can't TTD?
We aren't a tv oriented site for one and the very few peeps who actually capture tv broadcasts correctly are already doing so whether you ever see it or not.
schmoemeister, how do you upgrade the sound on a Grateful Dead video that's 20 years old, say West 57th or The Today Show. Wouldn't that be kind of ....STUPID? Standalones work great for that.
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  #63  
Old 2008-05-16, 03:30 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by pawel View Post
New HD standard uses lossy H.264 codec, and it's at entry point. So, maybe 10-15 years ;-)
Quote:
Originally Posted by AAR.oner View Post
i agree, there's really no evidence of any "lossless" codecs being actively developed...in all honesty, i haven't really seen anything in the industry that would point to any interest in something like that
Quote:
Originally Posted by direwolf-pgh View Post
no lossless video codecs huh ? I beg to differ.
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  #64  
Old 2008-05-16, 04:53 PM
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Re: Re-encoded digital video

why is H.264/MPEG-4 AVC listed as lossless & lossy - i couldnt find a decent explanation.
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  #65  
Old 2008-05-16, 05:09 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by direwolf-pgh View Post
why is H.264/MPEG-4 AVC listed as lossless & lossy - i couldnt find a decent explanation.
Probably because Wikipedia is only fact-checked by insomniacs and the chronically underemployed.
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  #66  
Old 2008-05-16, 05:24 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by scratchie View Post
Quote:
Originally Posted by direwolf-pgh View Post
why is H.264/MPEG-4 AVC listed as lossless & lossy - i couldnt find a decent explanation.
Probably because Wikipedia is only fact-checked by insomniacs and the chronically underemployed.
thats not much of an answer either "mr. i want better standards now" anybody else ?

Last edited by direwolf-pgh; 2008-05-16 at 05:33 PM.
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  #67  
Old 2008-05-16, 05:59 PM
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Re: Re-encoded digital video

ok the simple answer is "it depends on what data rate you select to use with the codec"
blu-ray..lossless... streaming.. lossy

pretty cool algorithm.. double the compression ratio of MPEG2 without loss.

ok. im done with this read.
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  #68  
Old 2008-05-16, 06:43 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by scratchie
What's the point? There doesn't seem to be any interest in improving the quality of anything but GD audience videos around here.
Where did anyone say that?
I have simply pointed out that its ironic that you propose a standard for new broadcasts but could care less how old tapes are transferred.
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  #69  
Old 2008-05-16, 06:45 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by schmoe75
Where did anyone say that?
I have simply pointed out that its ironic that you propose a standard for new broadcasts but could care less how old tapes are transferred.
I don't think you understand the meaning of the word 'irony'.
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  #70  
Old 2008-05-16, 06:47 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by vladsmythe
schmoemeister, how do you upgrade the sound on a Grateful Dead video that's 20 years old
You take the exisiting external audio and synch it.
Quote:
Originally Posted by vladsmythe
say West 57th or The Today Show. Wouldn't that be kind of ....STUPID? Standalones work great for that.
With a proper transfer and the audio being in LPCM vs the compressed to hell AC3 that is currently happening with your transfers.

I'm sorry that your hearing is so poor that you can't tell the difference between the same audio as lossless LPCM 1.5 Mbs vs crappy AC3 at 256 kbs
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  #71  
Old 2008-05-16, 06:48 PM
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Re: Re-encoded digital video

Quote:
Originally Posted by scratchie
I don't think you understand the meaning of the word 'irony'.
Probably not, but the point is still valid.
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  #72  
Old 2008-05-16, 07:22 PM
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Re: Re-encoded digital video

My hearing is fine, I just don't think spoken word videos require LPCM. Besides, I don't want to spend any money on a better standalone right now, between my 3 week trip to Australia, a new driveway, my son's college and our family cruise around the Greek Isles later this year...I'm hurtin' bro! If you don't like them don't download them. But many people do. Thank you for entertaining us during these trying times (HC down). You have helped many of us through HC withdrawl anguish.
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  #73  
Old 2008-05-17, 05:40 AM
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Re: Re-encoded digital video

Quote:
Originally Posted by bot View Post
Quote:
Originally Posted by pawel View Post
New HD standard uses lossy H.264 codec, and it's at entry point. So, maybe 10-15 years ;-)


Quote:
Originally Posted by direwolf-pgh View Post
no lossless video codecs huh ? I beg to differ.
i was referring to the film world--there is no viable lossless video codec being pursued at this point

H.264 is not truly lossless, no matter what bit rate you choose [technically no digi video is lossless, but thats a whole nother discussion i have no interest in arguing]...sure there's lossless compression thats been created, HuffYUV and what not, but they're just fringe codecs really...the film industry, which dictates standards/norms, has shown little or no interest in using them

i'll also note, the accuracy of the info in that link isn't exactly spot on...hell, they have ATRAC listed as "Advanced Lossless" audio
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  #74  
Old 2008-05-17, 05:49 AM
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Re: Re-encoded digital video

Quote:
Originally Posted by scratchie View Post
Quote:
Originally Posted by direwolf-pgh View Post
why is H.264/MPEG-4 AVC listed as lossless & lossy - i couldnt find a decent explanation.
Probably because Wikipedia is only fact-checked by insomniacs and the chronically underemployed.
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  #75  
Old 2008-05-17, 11:56 AM
scratchie scratchie is offline
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Re: Re-encoded digital video

Quote:
Originally Posted by schmoe75 View Post
Quote:
Originally Posted by scratchie
I don't think you understand the meaning of the word 'irony'.
Probably not, but the point is still valid.
Not really.

"It's ironic that you put ketchup on your hamburgers, but not filet mignon."

"It's ironic that you toss that cheap Mexican Strat in the back of your pickup with no case, but you don't do the same with your '59 Les Paul."

"It's ironic that you'll watch Star Trek reruns on that 12" black & white TV, but you won't watch Lawrence of Arabia on it."

etc.
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