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Netflix comes in a variety of sound formats, depending on which subscription plan you pay for. The streaming service's premium tier supports 4K streaming on all the best 4K TVs and Dolby Atmos sound. Meanwhile, their standard plan allows for HD streaming and up to 5.1 surround sound.
But not everyone has a surround sound system, although more of the best soundbars are able to emulate and pass through surround sound. But, if you find yourself without, the below fix could instantly improve the audio you get from Netflix.
James is the TV Hardware Staff Writer at TechRadar. Before joining the team, he worked at a major UK based AV retailer selling TV and audio equipment, where he was either telling customers the difference between OLED and QLED or being wowed by watching a PS5 run on the LG 65G2. When not writing about the latest TV tech, James can be found gaming, reading, watching rugby or coming up with another idea for a novel. "}), " -0-11/js/authorBio.js"); } else console.error('%c FTE ','background: #9306F9; color: #ffffff','no lazy slice hydration function available'); James DavidsonSocial Links NavigationTV Hardware Staff Writer, Home Entertainment James is the TV Hardware Staff Writer at TechRadar. Before joining the team, he worked at a major UK based AV retailer selling TV and audio equipment, where he was either telling customers the difference between OLED and QLED or being wowed by watching a PS5 run on the LG 65G2. When not writing about the latest TV tech, James can be found gaming, reading, watching rugby or coming up with another idea for a novel.
I use an HDMI switch with an SPDIF optical audio extractor to get the audio from the HDMI to my old surround amp which handles DD and DTS (not HD). This works well in surround sound with everything except for Netflix on Roku where I get 2.0 sound. The setup even gets DD surround with Netflix on a Fire Stick 2nd gen.
If your TV or A/V receiver isn't capable of playing Dolby Digital+ audio formats (as detected by the 'Auto' settings in Settings>Audio>Audio mode, you would only receive Stereo audio from the Netflix channel.
Plex is doing the transcoding, not the Roku. For what you are seeing, check to see of any of the audio processing functions are enabled. You can only access them when something is playing. Press the * button while the video is playing and look for any sound function and make sure it's turned off. It might be labeled volume leveling, or something different. But any audio processing must be turned off or you only get stereo sound.
Volume Leveling is turned off. The only other relevant setting I can see is Roku's main Audio Setting where I have tried all the options and none of them give surround sound with Netflix. Volume Leveling doesn't seem to stop surround sound on Plex.
On further investigation, it seems that if you set Volume Leveling before starting the video, then it does indeed set the sound to stereo. If you set Volume Leveling after starting the video it doesn't set the sound to stereo, however it doesn't seem to do any volume leveling either (until the video is restarted).
If I play a DTS movie via Plex, and the Roku setting it set to DD then it comes through as DD. If the Roku setting is set to either DD or DD & DTS then not surprisingly it comes through as DTS. So something is able to convert from DTS to DD, presumably the Roku since it is the Roku setting that determines the output format. I would have thought that same transcoder would convert from DD+ to DD if the Roku Audio setting is DD.
Seems like we have a similar setup. I never found a solution. Netflix has never worked for me in DD5.1 on Roku. I just use Netflix on my Firestick instead which does do DD5.1. However the Roku is much better when streaming movies from Windows via Plex and gets DD5.1, DTS5.1 and lip-sync much better.
Streaming services and especially Netflix have really stepped it up, and have now become a major competitor for traditional film or TV services. When it comes to image quality, the steaming services can keep up with its established competitors. Provided that the internet can supply a good-enough connection, films can be watched in HD online, and in some cases UHD (Ultra High Definition).
Whoever streams a film via a web-app on a laptop or PC has to rely heavily on the room acoustics. Currently, Microsoft are working together with Dolby to make their Edge browser potentially the first ever browser to support Dolby Digital Plus. Hopefully, the streaming services should offer this service too, to improve sound.
The storage medium offers enough storage space for lossless standards such as Dolby True HD. Sound information encoded in DD+ is backwards compatible. This means that receivers that only support the predecessor Dolby Digital standard can process the codec.
DD+ does not mark the end of the development in streaming sound. More and more Netflix movies support the 3D sound format Dolby Atmos as well as Dolby Vision. However, users need a premium account for this.
The Cinebar One is our answer to Netflix streaming with high-level audio transmission. The compact sound bar accommodates four powerful full-range loudspeakers. Along with these there are side speakers that together create a virtual surround sound experience. Thanks to Dolby Digital the Cinebar One supports Dolby Digital Plus.
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