Question:
I know full bitrate DTS is 1536Kb/s but i was wondering what full bitrate Dolby Digital was?:confused: :D
it's 448kb/s isn't it?
I think 448kb/s is the standard bit rate for DD5.1.:suspect:
normally encoded as: minimum 192, medium 384, maximum 448
BUT in very exceptional or special cases it can be greater than 640
Originally posted by Marv
I think 448kb/s is the standard bit rate for DD5.1.:suspect: Pretty much, doesn't stop it being the defined maximum. 384 turns up reasonably often as well, 192 is only for 2.0.
You'd be hard pushed to find a recent DTS track which is above 764.
What's the rates on the Superbit discs for DTS/DD?
Dunno :confused:
I think it may vary from title to title :confused:
Acording to the Dolby website full bitrate DD5.1 is 640 kb/s
Originally posted by Wayne Moule
What's the rates on the Superbit discs for DTS/DD?
I believe the space is used for higher bit rate video.
Originally posted by Marv
Acording to the Dolby website full bitrate DD5.1 is 640 kb/s
Like I said 'exceptional' and 'special' cases ;)
Originally posted by Wayne Moule
What's the rates on the Superbit discs for DTS/DD?
from dvdangle
The Audio:
The full rate Dolby Digital 5.1 audio is a noticeable improvement over the Dolby Digital 5.1 tracks included on the 'old' DVD releases. All 448 kbps are put to good use. The half rate DTS 5.1 is far, far less grandiose. One of the reasons the Superbit DVD's are movie-only is to provide as much space as possible for "higher bitrate audio encoding," according to Starkman. However, he then went on to say, "We originally investigated the option of having full bitrate DTS (1.5 Mbps), but quickly discovered that doing so would compromise the maximum video bitrate (the highest possible level that the video can use at any given time). As all the Superbit titles were designed to provide improved sound and picture, too much data devoted to the sound part of the equation would result in a compromise of the picture bitrate (especially on titles with a long run time)."
There is a mistake in the above, as i already mention "full" bitrate DD5.1 is 640kb/s and not 448kb/s as stated above.
I think they should do their superbit titles with both types of audio, but on seperate discs, that way there shouldn't be a compromise.
Otherwise I think the next generation of DVD's, like blu-ray, will offer high definition video and more space given to audio. This would be handy indeed for long movies - LOTR, SW and other films to name.
Do they still make Superbit titles? I thought they'd sold so poorly, they didn't bother any more... :(
Originally posted by Grandmaster
Do they still make Superbit titles? I thought they'd sold so poorly, they didn't bother any more... :(
Superbit titles are still popular, they don't all have the silver coloured cases any more but are still made with new titles being added on a regular basis.
Originally posted by Kryten
Superbit titles are still popular, they don't all have the silver coloured cases any more but are still made with new titles being added on a regular basis.
It's now silver coloured plastic, I guess they gave up on cardboard as it cost them too much in terms of trees and manufacturing costs :|
Answers:
it's 448kb/s isn't it?
Answers:
I think 448kb/s is the standard bit rate for DD5.1.:suspect:
Answers:
normally encoded as: minimum 192, medium 384, maximum 448
BUT in very exceptional or special cases it can be greater than 640
Answers:
Originally posted by Marv
I think 448kb/s is the standard bit rate for DD5.1.:suspect: Pretty much, doesn't stop it being the defined maximum. 384 turns up reasonably often as well, 192 is only for 2.0.
You'd be hard pushed to find a recent DTS track which is above 764.
Answers:
What's the rates on the Superbit discs for DTS/DD?
Answers:
Dunno :confused:
I think it may vary from title to title :confused:
Answers:
Acording to the Dolby website full bitrate DD5.1 is 640 kb/s
Answers:
Originally posted by Wayne Moule
What's the rates on the Superbit discs for DTS/DD?
I believe the space is used for higher bit rate video.
Answers:
Originally posted by Marv
Acording to the Dolby website full bitrate DD5.1 is 640 kb/s
Like I said 'exceptional' and 'special' cases ;)
Answers:
Originally posted by Wayne Moule
What's the rates on the Superbit discs for DTS/DD?
from dvdangle
The Audio:
The full rate Dolby Digital 5.1 audio is a noticeable improvement over the Dolby Digital 5.1 tracks included on the 'old' DVD releases. All 448 kbps are put to good use. The half rate DTS 5.1 is far, far less grandiose. One of the reasons the Superbit DVD's are movie-only is to provide as much space as possible for "higher bitrate audio encoding," according to Starkman. However, he then went on to say, "We originally investigated the option of having full bitrate DTS (1.5 Mbps), but quickly discovered that doing so would compromise the maximum video bitrate (the highest possible level that the video can use at any given time). As all the Superbit titles were designed to provide improved sound and picture, too much data devoted to the sound part of the equation would result in a compromise of the picture bitrate (especially on titles with a long run time)."
There is a mistake in the above, as i already mention "full" bitrate DD5.1 is 640kb/s and not 448kb/s as stated above.
Answers:
I think they should do their superbit titles with both types of audio, but on seperate discs, that way there shouldn't be a compromise.
Otherwise I think the next generation of DVD's, like blu-ray, will offer high definition video and more space given to audio. This would be handy indeed for long movies - LOTR, SW and other films to name.
Answers:
Do they still make Superbit titles? I thought they'd sold so poorly, they didn't bother any more... :(
Answers:
Originally posted by Grandmaster
Do they still make Superbit titles? I thought they'd sold so poorly, they didn't bother any more... :(
Superbit titles are still popular, they don't all have the silver coloured cases any more but are still made with new titles being added on a regular basis.
Answers:
Originally posted by Kryten
Superbit titles are still popular, they don't all have the silver coloured cases any more but are still made with new titles being added on a regular basis.
It's now silver coloured plastic, I guess they gave up on cardboard as it cost them too much in terms of trees and manufacturing costs :|
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