berkai amryta salenah

[Casimiro Lurten]

I'm having problems with random audio drops /popping with the new 2021 Apple TV 4k using the Netflix app and HBO Max app with Dolby Atmos shows. I had this with the original tvOS and now with tvOS 15.0. It is connected to a Denon X4400Hx. I tried a bunch of things with no success. Not sure if there is a hardware or software problem. At the beginning of the Matrix when the WB logo is coming up and there were small audio drops; I replicated this twice, but now it's working. Super annoyed and I'm worried about a pop blowing out a tweeter.

In my experience, I have found that any content featuring a Dolby Atmos track will produce this result to varying degree/severity, so you might consider a full switchover to TV apps to save yourself the juggling act and possible damage to your speakers. Or, if you are more enamored of your video quality of the ATV, then disable Atmos processing. I decided on the former option as I truly enjoy the Atmos experience and had need of the ATV to be used elsewhere in a non-Atmos setup.

In Netflix, I started watching The Adam Project yesterday and the soundbar repeatedly switched in and out of Atmos, causing sound to drop out every second i.e. audio for 1 second, no audio for 1 second, audio for 1 second, no audio for 1 second ... endlessly. This happened with any Atmos title in the Netflix app.

I had my Apple TV in a closed closet (only opening in the back) and it felt rather warm. When I installed the Netflix update I at the same time got The Apple TV out of the closet and it's now standing free and doesn't run warm. Since then no dropouts for several days now.

You are losing some of the audio effects that way but if you can't tell the difference and I don't think many can then that is a work around. I put a lot into the Atmos setup with 4 in ceiling speakers and can't really tell they do anything. :(

I think I finially fixed it. Both the cable from the TV to the receiver and the cable from the Apple TV to the receiver had to be replaced; just replacing the cable to the ATV with a super short high rated cable was not enough. All the previous cables were 18 Gbps and passed the HDMI checks for max bells and whistles but that was obviously not enough for Atmos (1080p and Atmos had problems too). I think the Gen2 ATV 4k is less tolerant than the ATV Gen1 for atmos as I did not have this problem until I 'upgraded'.

Okay, I may be misunderstanding the whole thing...First thing first, what was you guys's problem with NF app on ATV 4k, to begin with? I bought the ATV today & updated it to the latest software, I can see the Atmos label in the title description on NF via ATV, however, the surround & SQ doesn't feel like atmos. When I play the same title on my windows laptop NF app, it's far better sound & image. Also, the receiver app displays the audio input details (5.4 ch +atmos) better when played on windows app..

I was expecting a bump up in AV quality with ATV 4k, but it's been a disappointing first day. For cables, my ATV sits next to the receiver, I can get a 2 ft. wire. But the projector is about 8 ft away.

There's no problem with most Netflix programs, but when I watch "Drive to Survive", every minute or two, the audio glitches. It goes silent, and then there's something like an echo that gets faster and faster until finally, the sound re-synchronizes. Kind of a stuttering that gets faster and faster for about 5-10 seconds.

I understand that AppleTV does not have a "Passthrough" mode so my Denon can decode the streaming audio signal. Instead, AppleTV decodes the lossy Dolby Digital Plus 5.1 stream that Netflix sends to uncompressed PCM audio and then uses something called Dolby MAT 2.0 to send the Atmos metadata information. I suspect something is going wrong in that process, at least with Netflix. It mostly seems to fail when there is a lot of bass-heavy audio going on in "Drive to Survive", like the room-rattling racecar noises (vroom vroom).

I just updated my Apple TV 4K and this same thing started happening to me today. Watched two Netfix movies last night with no issues, but tonight the sound streams to my airplay Bose speakers ahead of the video. Also, my picture is slightly glitchy. When I change to TV speaker (which runs through HDMI cable) sound is perfectly synced with video and no more glitch. Again, this was NOT an issue until my Apple TV updated. This doesn't look like a fluke. It looks like a BAD UPGRADE. PLEASE FIX ASAP!

I am having the same issues with the NEW Apple TV. lagging after watching for a few minutes, however, may lagging occurs on YouTube TV and other apps. I have been a big supporter of Apple TV but if this lagging is not corrected I will have to change hardware, which is a lot since I have two homes. What is Apple doing to try and fix this problem?

This is happening across all of the live streaming apps. Please investigate the root cause. This is absolutely repeatable. This makes it difficult to recommend Apple TV as a streaming device for anything but prerecorded material. I am available to assist in any troubleshooting.

Apps are engineered for the devices where they're downloaded, so you may have different settings or performance for each. For example, the Netflix app may work differently when downloaded directly on your Smart TV than it does when downloaded on your Apple TV, or it may require various settings to be customized to optimize performance through that device.

Watching ESPN last night during the baseball game the sync was so off the on camera was unwatchable. I have a high speed cable and running sound via hdmi . Watching Amazon prime or Netflix no problem but streaming ESPN was horrible.

I have the same issue but only if I use airplay to direct the audio to my speakers. However, if the audio is transmitted through bluetooth, then I get perfect synchrony. This problem only happened after my Apple tv HD had it last update on September 20, 2021.

To get very specific, shows like Star Trek DS9 (Netflix) and John Oliver (HBO) go out is sync almost immediately. Any live streaming app also. Newer shows and movies go out of sync less frequently. I have no problems with streaming directly through the TV (LG CX). I think this is my last apple TV.

[TLDR] try changing your ATV4K Settings > Video and Audio > VIDEO: Match Content = Off to see if it reduces or eliminates this Dolby Atmos issue (even though such a video setting seems unrelated to an Atmos audio problem). Read on to learn the genesis of my theory.

So I just participated in a thread where the OP's issue was Dolby Vision-related, and the fix/workaround was to set the ATV4K's default Video Format to 4K Dolby Vision, and to set the Match Content Range and Frame Rate settings to Off. Doing so prevented the OP's LG TV from switching video modes in the middle of a Dolby Vision-encoded program.

I was reminded of this thread and it occurred to me that when dynamic range shifts between [Dolby Vision-encoded] scene changes cause the ATV4K (with the Match Content settings switched On) to make a TV switch video modes in the middle of a program, these same video stream events could easily cause burps in the [Atmos-encoded] audio stream playback (with varying effects depending on the AV components in use).

That's the theory. Perhaps this ATV4K Match Content behavior during Dolby Vision-encoded content playback might be the aggravating factor/trigger for [some of] the Atmos-related problems described in this thread.

PS - I have the older Apple TV 4K, an Atmos-capable Sony soundbar, and a cheaper LG TV that's merely 4K HDR10-capable (without Dolby Vision - so I couldn't test my own theory :-). FWIW, I've never had Atmos-related issues, so that sort of supports my theory because I've never experienced these Dolby Vision-induced video mode changes that might trigger them.

Went from FireTV HD 4K Stick working fine with Dolby Atmos to the latest Apple TV 4K 64GB (2021). Right away, after installing Netflix and watching movies, I would get random audio dropouts. I literally can see all the channels on my receiver drop out. Mostly I watch Netflix on my Apple TV 4K, but I am almost certain it happened during watching Dune rental through Apple TV movie rental. I am using Netflix's highest tier service with HD. My Apple TV goes straight to my receiver and from there to my TV using the ARC input. I do not have audio dropouts using my Panasonic DP UB820-K 4K UHD 4K Blu-ray player to my receiver to my TV using the same Bluejeans HDMI cable.

I have to say, I am really disappointed with my Apple 4K TV so far. I bought it thinking it would be an upgrade to my Amazon FireTV 4K HD stick, but with the audio issues the Apple TV 4K is just disappointing.

Like I wrote before, I'm not using ARC or eARC either. The ATV goes straight into a Sony STR-DH790 receiver with a 5.1.2 setup. The issues only appeared after I added the height speakers. Zero dropouts before that.

For me, it sounds like a buffer overflow issue. It starts to stutter on all speakers at the same time, starts with a very fast stutter which then extends in length (on/off on/off oon/oof ooon/oooof etc) for about 5 - 10 seconds.

I've just come out of an Apple support chat. They are working on the issue. They indicate this needs a fix in TV os. Should be available shortly. I'll also drop some messages in www.apple.com/feedback as per their request.

The ONLY way to get Apple to move on this is to open support cases. Apple Support does not monitor these threads and the number of people reporting issues in here anecdotally. Apple Support will flat out tell you that this a community for end users to help themselves.

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