Neftlix SuperHD streaming
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Previously, Netflix highest quality video, available to those with ISPs not in the OpenConnect program, was encoded at
3850Kbps. With SuperHD, video is encoded at
4300Kbps and 5800Kbps
and adding the audio bitrate brings SuperHD encodes to about
4.5Mbps and 6.0Mbps.
Netflix is essentially doubling the quality of their video, for a limited amount of their content.
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4300 Kbps = 4.3 Mbps (4.5 Mbps with netflix super HD audio added) -> .2 Mbps audio -> 200 Kbps audio
5800 Kbps = 5.8 Mbps (6.0 Mbps with netflix super HD audio added) -> .2 Mbps audio -> 200 Kbps audio
typical high quality blurays are 28 - 33 Mbps
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Lone Ranger for example..
Fixed Audio
MPEG-4 AVC Video 26136 Kbps = 26.136 Mbps video
DTS-HD Master Audio 7.1 = 5730 kbps = 5.73 Mbps audio
(1.5mb 5.1 audio)
netflix "regular" HD is 3.85 Mbs total including video and audio , so if the lone rager is around 32 Mbps total , regular netflix hd stream of it would be 8.3 times more compressed
netflix super HD video - would be 6 times or 4.5 times more compressed than the lone ranger bluray
(typically 1/6th the bitrate, depending on whether title was streamed closer to 4.3 Mbs or 5.8 Mbs)
neftlix super HD audio - would be on more equal terms, 7.5 times more compressed than the lone ranger bluray (.2Mbps 5.1 audio vs 1.5 Mbs 5.1 audio track)
- however, the True HD 7.1 track is lost which is 28.6 times larger than the netflix stream
(5.73 Mbps bluray 7.1 DTS-HD audio 28.6 times larger than .2 Mbps audio stream, and 3.8 time larger than the bluray 5.1 track).
Lone ranger typical high quality mkv rip at 1080p ~ 14 GB size
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Overall bitrate: 13.5 Mbps
Video Bitrate 11.8 Mbps video.. is 1.9 times more compressed than the original bluray's 26.136 Mpbs video (cut by almost half)
DTS 5.1 @ 1510 Kbps = 1.5 Mbps audio which is the original 5.1 bitrate, bit depth 24bit 48 Khz
however at that same rate, 7.1 bluray DTS-Master audio would be 5 times more compressed,
or you would have to make to make the audio track 5 times as large
Basically you are dropping the master, least compressed 5.73 Mbs DTS-Master 7.1 audio stream.
Movies like avatar bluray have 7.5 Mbps master 7.1 audio stream.
Sound formats
http://www.dvdactive.com/editorial/articles/a-quick-guide-to-hd-audio.html?post_id=172459&action=report
Linear PCM (Mandatory)
Dolby Digital (Mandatory)
Dolby Digital Plus (Optional)
Dolby TrueHD (Optional)
DTS (Mandatory)
DTS-HD High Resolution Audio (Optional)
DTS-HD Master Audio (Optional)
Dolby
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Dolby Digital is the most commonly used format for DVD soundtracks and it also appears on a large number of Blu-ray Discs. As previously stated, Dolby Digital is a lossy format that discards information in order to compress a soundtrack down to a more manageable size. Common bitrates for Dolby Digital on DVD were 384Kbps and 448Kbps, but Blu-ray ups this to a maximum of 640Kbps. Although capable of delivering excellent audio, it’s not high-definition and supports a maximum of 5.1 channels.
Dolby’s newer format, Dolby Digital Plus, is similar to standard Dolby Digital in that it is a lossy format. However, it uses more efficient compression at higher bitrates (up to 1.7Mbps) and offers support for 7.1 channels. This produces superior results to standard Dolby Digital, but it is rarely employed on Blu-ray Disc because of its optional status. On HD DVD, where it was a mandatory format, it had a maximum bitrate of 3.0Mbps and was used on many titles.
Dolby’s most advanced format is TrueHD, which is lossless. What this means in simple terms is that although the format is compressed, no audio information is lost (in this respect it is analogous to a zip file). It allows for up to 7.1 channels of audio at bitrates of up to 18Mbps. TrueHD is widely used as the primary soundtrack on many Blu-ray Discs, but because it is an optional format it is always accompanied by a standard Dolby Digital track at 640Kbps for legacy compatibility. This track is usually hidden, but some studios (such as Warner Brothers) offer it as a selectable item in their menus.
DTS
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DTS was a popular lossy audio format on DVD due to its alleged superiority over Dolby Digital (and no I don’t want to get into that debate here). DTS was commonly found on ‘premium’ editions of certain titles and was often used as a marketing tool to attract consumers who demanded the best audio-visual quality (Sony’s Superbit rage springs to mind). Standard DTS supported up to 5.1 channels of audio and offered bitrates of 768Kbps and 1.5Mbps, although the majority of titles were encoded at the lower bitrate.
DTS’ answer to Dolby Digital Plus is DTS-HD High Resolution Audio. This is a lossy format that offers up to 7.1 channels at a maximum bitrate of 6.0Mbps and its use is more widespread than Dolby Digital Plus on Blu-ray (at least in my experience). It is usually employed on titles where space is an issue, but it occasionally crops up on some big-name titles (the German release of Fight Club springs to mind).
Now this is where DTS’ naming conventions get a bit confusing. DTS’ answer to Dolby TrueHD is called DTS-HD Master Audio, but more often than not it is referred to simply as Master Audio. It supports up to 7.1 channels of audio at a maximum bitrate of 24.5Mbps. Whereas Dolby TrueHD includes a separate Dolby Digital track, DTS-HD (both variants) works on a slightly different principal. There is a single stream containing both the standard lossy DTS Core and the lossless extension, which combine to create the full DTS-HD track (this is referred to as Core+Extensions). This lossless extension contains the 'difference' between the standard Core audio and the full DTS-HD soundtrack. If a player does not support DTS-HD then the lossless extension is discarded and you are left with a 1.5Mbps DTS Core track.
Linear PCM
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PCM is the other main format in use on Blu-ray and is seen by some as the ‘holy grail’ of audio. Because it is uncompressed and identical to the studio master it occupies far more disc space than the compressed Dolby and DTS formats, and as such it is used less frequently. For example, many early releases from Sony featured PCM tracks, but they have now largely switched to TrueHD (and to a lesser extent Master Audio).
As you can see, high-definition audio is a bit of a minefield, what with all of the different formats and their variants. However, for the best possible quality you’re going to want to seek out Blu-ray Discs with Dolby TrueHD, DTS-HD Master Audio or PCM soundtracks. Although compressed, TrueHD and Master Audio are bit-for-bit identical to the studio material, so there is theoretically no difference between these three formats other than space requirements and occasional volume differences (Dolby tracks tend to be quieter).
Avatar - average video bitrate of 31 Mbps [AVC]- fixed audio bitrate of 7.5 Mbps [DTS-HD 5.1]
Star Trek: Into Darkness - 37.01 Mbps video , 7.1 TrueHD
Dolby Surround 7.1 Movies
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http://www.dolby.com/us/en/consumer/content/movie/release/dolby-surround-7-1-movies.html
List of BDs with 6.1/7.1 Audio
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http://forum.blu-ray.com/showthread.php?t=159814