In the blog post, Netflix said the subtlety of sound of goes unnoticed however can have a profound effect on the atmosphere of a scene and ultimately change how the viewer feels and reacts to it. “By using adaptive streaming for audio, we allow audio quality to adjust during playback to bandwidth capabilities, just like we do for video.” This is similar to what we already do for video.”Īdaptive streaming has clear benefits to ensure the content is optimised for the viewer and now Netflix has adaptive streaming for both video and audio enabling the media to be delivered to the user in the most optimal way for the network connection. “Additionally, if you have bandwidth or device limitations, we’ve made the feature adaptive so that we will deliver the best possible audio to match your capabilities. “Every little detail is captured for a richer, more intense experience. Netflix said the new feature will take its ”sound quality to another level,” with audiences now able to hear audio as the creators intended from the studio production. The streaming video giant is increasing its audio bitrate from 192 kbps to 640 kbps which will enhance the audio experience, along with premium subscribers who will now have access to Dolby Atmos at 768 kbps from 448 kbps.Īccording to the company announcement: “We expect these bitrates to evolve over time as we get more efficient with our encoding techniques.” Netflix has boosted the quality of its Dolby Atmos audio in a bid to “bring viewers closer to the story.” So now you know - Sony made this disc to conform with the pathetic Blu Ray.Netflix: “Every little detail richer and more intense” HD DVD optional decodersīlu-ray Disc mandatory decodersġ) Dolby Digital (up to 640kbps)Ģ)DTS-HD (which would include their standard DTS ES or 96/24īlu-ray Disc optional decoders ĥ) PCM up to 8-channels 4) DTS-HD (which would include their standard DTS ES or 96/24) HD DVD mandatory decodersģ) Dolby TrueHD - 2-channel See below for what is - and is not - supported in each format: To get a higher bitrate, the use of DD+ is required, and this is not mandated under BRD, only HD DVD. The reviewer seems to notice an improvement when comparing the 640kb/s track to the 448kb/s track.Ĭlick to expand.The BRD & HD DVD specs allow for Dolby Digital to a MAXIMUM of 640kb/sec, not any more.Īdditional bitrate under Dolby Digital is unsupported. Quick edit- Here is a link to a DVD review of Pulse. The HD-DVD and Blu-Ray specs do allow for a 640kb/s DD track and much much more, so the upper bit rate of the older DD codec will be fine on those formats.
![448 kbps vs 640 kbps 448 kbps vs 640 kbps](https://slidetodoc.com/presentation_image_h/22572c1336ccaad62dcf400693831d5a/image-33.jpg)
Perhaps now more of the newer DVD players will pass the bitstream intact.
![448 kbps vs 640 kbps 448 kbps vs 640 kbps](https://i.imgur.com/WvZz8E6.png)
Because it's not in the DVD spec, this is why there will be two Dolby Digital tracks, with the 640kb/s track being track #2. It's worth noting all Sony DVD players have passed DD 640kb/s bitstreams. An old Sharp player simply muted the track. The first and second generation Toshiba DVD players HATED the 640kb/s bitstream and would lock up. The DD 640kb/s is not part of the official DVD spec, so while it is possible to make a 640kb/s DVD (and has been done before as a hidden track on one of the first test DVDs), there's no guarantee it will play in all DVD players.