shanbot lucian elvina

0 views

Skip to first unread message

Rosita Westhouse

unread,

Aug 2, 2024, 11:52:26 AM8/2/24

to conmyikejus

So I have an AppleTV HD (4th Gen) running tvOS 14.0, and surround sound is broken on Netflix. I am pretty sure it was working forever before I upgraded to tvOS 14, which is why I just spent an hour and a half trying to fix it.

I enabled tvOS Developer tools to show the media stream HUD, and it is clearly outputting 2 channel audio for all Netflix content. Disney+ and HBOMax are clearly outputting Dolby Digital or PCM (e.g. 6 channels). I have tooled with all of the Netflix and tvOS settings, including signing into a totally different Netflix account - all to no avail.

I can report the same problem after the recent Netflix app update. I updated to tvOS last week and 5.1 surround sound was working fine with Netflix until the app update on Tuesday. I have a LG CX OLED and Marantz NR1602 which does not decode Dolby Atmos.

tvOS 14 has changed the auto setting sound output. I send sound via HDMI ARC to my AV receiver. With tvOS 13, i had to set the Apple TV to down mix to Dolby Digital 5.1 to get 5.1 surround sound as I cannot pass through 5.1 LPCM over ARC with my setup. Now, the auto setting correctly sends a Dolby digital 5.1 signal over ARC on Apple TV+, Amazon Prime video and Netflix until the recent app update broke surround sound. I suspect that the recent app updates in Netflix and Plex are to blame but only on tvOS 14.

I noticed this same problem on my Apple TV 4K yesterday (Wednesday 9/23). I've been going crazy trying to figure out why I'm no longer receiving Dolby Atmos audio while watching content from Netflix clearly labeled as Dolby Atmos. It was working fine before yesterday.

After fooling with all the different settings on my Apple TV and my Yamaha receiver, nothing helped. That's when I went into other apps (Disney+, Apple TV+) and played content with Dolby Atmos, and it worked perfectly. It seems to be a problem with Netflix only.

I am having the same problem only getting 2 channel audio, no 5.1 or atmos on Netflix with my Apple TV 4K, played around with every setting under the sun, updated my reciever (Yamaha RXA3060) and even reset my Apple TV. I hope it is fixed soon, so frustrating ):

Deleted and added Netflix app 5 times. First time works but after that, no luck. Every video subscription service (Apple TV, Amazon Prime, etc) all support 5.1 while Netflix chokes and only supports stereo after the TVOS 14 update.

However, after some exploring I found there were some additional setting in the tv's advanced sound settings that had not activated, ... I changed them to dolby digital plus and pass through and it seems to have worked!

Thanks Ben. I think the setting I found for PCM that I set to auto has done the trick. I am now seeing Dolby for Netflix 5.1 movies. Still saw Stereo PCM for Dolby Atmos demos on YouTube but they may be my slow internet connection

This is brilliant thank you, I have the same tv and soundbar and couldn't figure out why it was only pcm 2.0. It was driving me mad.. changed my audio settings to pass through in the LG and left the digital plus option to auto and its working perfectly. Thank you!

I'm pretty sure that only matters for the internal speakers.. Once the audio is set to pass through.. the TV let's the sound bar do all the work and allows the app to speak directly with with soundbar.. im no expert but that's what I took from it.. mine is greyed out but set to on.. if it was bothering you, you could try change the audio output to TV internal speaker, turn it on.. then change the audio back to e-arc and it should grey out but be set to on.. but I don't think it matters, the sonos system tells you what signal its outputting and if you go to the sonos app and click settings, then system, then about my system and scroll down you should see what audio format each speaker is receiving... again I'm no expert but that's what I picked up googling stuff and this forum.

To check for sure.. search 'atmos' on netflix. It will give you all the dolby atmos titles.. pick one, let it play and go check your sonos app. As long as you see it in both places in the app then you're fine. Here's what I see when I watch 'our planet' on netflix in dolby vision-atmos.

When apple tv 4k is blocked in pcm stereo, i just "turn off" normally the apple tv. I wait 30 seconds to be sure apple tv, tv and sonos are in stand by mode. After this i turn on apple tv with official remote and now it's works !!!

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.

When you watch a supported show or movie, make a FaceTime call, or listen to supported music on your device, AirPods (3rd generation), AirPods Pro (all generations), and AirPods Max use Spatial Audio and head tracking to create an immersive theater-like environment with sound that surrounds you.

The settings you choose are saved and applied automatically the next time you use that app. For example, if you tap Fixed while listening to a song in the Music app , the Fixed setting is automatically used the next time you play a song in that app.

The settings you choose are saved and applied automatically the next time you use that app. For example, if you turn on Spatial Audio while using the Apple TV app with your AirPods, Spatial Audio automatically turns on the next time you use the that app with your AirPods.

This happened just recently, the Channels app has been working properly for over a year now. Nothing physical has changed with my setup. All other apps (AppleTV+, Netflix, Amazon Prime, HBO Max, Disney+) are producing correct surround sound from the correct speakers.

A little about my setup. Apple TV -> HDMI -> Samsung TV (audio settings are correct, other apps produce surround sound) -> HDMI -> Sony receiver. I wish I could connect my Apple TV directly to my Sony Receiver, however it doesn't support HDR passthrough.

Using the Test Surround Sound, with/without surround on, with/without experimental audio driver consistent only works for front left/centre/right speakers and the rear comes through on the front left/right.