Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 
Affiliate link

Affiliate link: Buy anything now at AliExpress.
6614 posts

Uber Geek

ID Verified

  #2273925 10-Jul-2019 12:24
Send private message

Not looking at things with the right glasses.

Multi channel audio is descrete. Encoded. It was designed for separate audio tracks on laser disc in a modulated format.

How that encoded signal gets to your devices now differs. By transport method. And package the source uses

There is a multitude of playback formats that can encode a stream with it. And many packages and software decoders that can decode it. However the moment you change format during transport from original source to the end users things can go wrong. Especially if there are add-ons or hooks set to improve the experience with auto bitrate adjustments and buffers.

Are you sure your connection is even capable of the bitrate required for the raw stream and it isn't being recoded down? That's another potential aspect

6069 posts

Uber Geek


  #2273926 10-Jul-2019 12:25
Send private message

What particular sources of video with DD 5.1 audio do you want to stream via a browser rather than a dedicated app?


I'm just trying to understand what your intended use is, given the big VOD services provide their own app, which negates the need to use a browser. Of course, some of these services don't provide DD 5.1 - here's looking at YouTube, Lightbox, Neon... - but Netflix and Prime, for example, are in DD.


If it's 'alternative' streaming sites you want to use, perhaps download the content via other 'alternative' means and use Kodi (or VLC) to play the files (provided you can sort them out for 5.1 - I'm not sure if you're having problems playing 5.1 on ALL content via Kodi and VLC including downloaded files, or simply streamed content).





25156 posts

Uber Geek


  #2273951 10-Jul-2019 12:50
Send private message

IME browser playback will only work with discreet channel outputs, not for taking a pre-encoded DD stream and sending out out without changing it. Makes sense since  you would want to mix browser in with other stuff. Even then I cant recall the last time I had anything from the rears from a browser other than some wired demo site showing how it could be used.


Apps like the netflix ones will take control of the audio output and block all other playback when in use, so they can just dump their audio output over the digital output. 



15473 posts

Uber Geek

Lifetime subscriber

  #2273952 10-Jul-2019 12:53
Send private message

I'm not actually bothered about this, just trying to understand it better. It started as idle curiosity, not a need or desire to stream any particular site. I saw some links, mostly on YouTube, that said they were DD 5.1. But when I tried to stream them with a browser, I only got stereo. So I started wondering why that was. And then as I looked into it further, I encountered this enormous rat's nest of confusion about whether DD 5.1 can be streamed at all with a browser. I'm not bothered if it can't be, but the confusion and contradictory information is annoying, especially if you don't already know a lot about this kind of thing. For ordinary users who don't know a lot, it can be enormously confusing. Why should this be so? 


Having started this thread, I decided to see if I could find some definitive answers that might be helpful to others who were feeling the same confusion. So I did some tests and have now reported my results. People can do with them what they like.


I have apps for some sites but for a lot of the sites that interest me, there either are no apps I can find, or the ones that exist only work properly with phones and are not suitable for the Shield. So I use a browser to stream those via HTTP. 


I have no problem playing DD 5.1 via Kodi from a file. The issue I was trying to answer was whether this was possible with streaming from a browser. Apparently it is not.  



Plesse igmore amd axxept applogies in adbance fir anu typos



767 posts

Ultimate Geek

  #2273987 10-Jul-2019 14:21
Send private message

Remember that optical/coax are quite poor ways of achieving surround sound, despite people continuing to recommend them over HDMI based on outdated knowledge. They can only pass through a pre-compressed surround sound signal, and only basic DD 5.1 at that. They do not have the bandwidth to pass through decompressed/PCM/discrete surround tracks. If your video player is decoding the compressed audio rather than passing it through, you will not get surround sound over optical. If your test file uses compression any more complex than DD 5.1, you will not get surround sound over optical. If your test file uses an audio track with discrete channels (usually MP3/AAC/PCM), you will not get surround sound over optical (unless you use something clever like Kodi which is capable of transcoding any original audio track into an optical-friendly surround format).


As rich said, your browser is decoding the DD 5.1 files and attempting to send the resulting multichannel PCM to your receiver. This is standard behaviour for any non-dedicated media player software, because bitstreaming a compressed signal means that the operating system can't mix the audio or otherwise touch the signal in any way. In other words, to get the playback behaviour we expect from a computer (like being able to hear system sounds/other browser tabs while playing a movie), the source signal has to be decoded to raw/PCM first. As optical doesn't support 5.1 PCM, you're getting 2.0 instead. If your receiver was connected with HDMI, you would get 5.1 multichannel from your browser.


Kodi, as a dedicated media player, bitstreams the untouched compressed DD 5.1 signal and you get 5.1 playback with your current equipment.

1 | 2 
View this topic in a long page with up to 500 replies per page Create new topic

News and reviews »

D-Link G415 4G Smart Router Review
Posted 27-Jun-2022 17:24

New Zealand Video Game Sales Reaches $540 Million
Posted 26-Jun-2022 14:49

Github Copilot Generally Available to All Developers
Posted 26-Jun-2022 14:37

Logitech G Introduces the New Astro A10 Headset
Posted 26-Jun-2022 14:20

Fitbit introduces Sleep Profiles
Posted 26-Jun-2022 14:11

Synology Introduces FlashStation FS3410
Posted 26-Jun-2022 14:04

Intel Arc A380 Graphics First Available in China
Posted 15-Jun-2022 17:08

JBL Introduces PartyBox Encore Essential Speaker
Posted 15-Jun-2022 17:05

New TVNZ+ streaming brand launches
Posted 13-Jun-2022 08:35

Chromecast With Google TV Review
Posted 10-Jun-2022 17:10

Xbox Gaming on Your Samsung Smart TV No Console Required
Posted 10-Jun-2022 00:01

Xbox Cloud Gaming Now Available in New Zealand
Posted 10-Jun-2022 00:01

HP Envy Inspire 7900e Review
Posted 9-Jun-2022 20:31

Philips Hue Starter Kit Review
Posted 4-Jun-2022 11:10

Sony Expands Its Wireless Speaker X-series Range
Posted 4-Jun-2022 10:25

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.