Weird Sound Glitch

[Blatherscribe 5]

I'm experiencing a strange sound glitch that so far has only occurred with one movie, Ocean's 11 (1960), in three locations (~ 43 minutes and one hour 38, I forgot the middle time), with one platform (Emby for Roku). I tried re-ripping the movie, and the problem is still there. This is ONLY on Emby for Roku. In VLC media player and the Emby browser client, it works fine.

What happens is this: at three points in the movie, the sound cuts out. If I let it run for about a minute silently, then use the button that skips back 10 seconds on the remote, the sound will work again until the next problem point. If I don't let it run for a minute silently, any attempt to go back 10 seconds brings me to the point at which the sound cut out, even if that means going back more than 10 seconds. Fast forwarding about a minute also works. This is completely reproducible, even surviving re-ripping the disc. I've never seen the like. Would you happen to know of a way to fix it, or is this a physical media problem and I should just exchange the disc?

Thanks!

ffmpeg-directstream-77c4733e-1ca1-4671-9f6e-248091c9f272_1.txt ffmpeg-directstream-a05eb3c0-32a6-4605-bcbd-027217ec7dcc_1.txt embyserver.txt ffmpeg-directstream-27f79584-f20c-45c5-89e3-e82cad8c3720_1.txt

Edited April 3, 2025 by Blatherscribe
Forgot to attach logs

[Luke 42078]

Hi, can you try re-encoding the ripped file?

[Blatherscribe 5]

I did, and the new file has the same problem in the same places.

[Luke 42078]

You said you reripped it now I’m asking you to try reencoding that.

[Blatherscribe 5]

 Yes, I did both things. Sorry I wasn't clear.

[Luke 42078]

22 minutes ago, Blatherscribe said:

 Yes, I did both things. Sorry I wasn't clear.

What exactly did you do?

[Blatherscribe 5]

16 minutes ago, Luke said:

What exactly did you do?

 I re-ripped the disc and transcoded the file.

[RanmaCanada 495]

This reads like the old cinavia protection from back in the day, which is odd as Roku doesn't support that as far as I know. Does it do it with a remux, ie if you do not encode the files and just leave it raw? And if it has multiple audio tracks, does it do it with all the audio tracks? Does it do it if only the server transcodes the audio?

Sorry, from a technical standpoint this is interesting. I doubt it is your disc as it plays fine in VLC and in the browser.

[Blatherscribe 5]

27 minutes ago, RanmaCanada said:

This reads like the old cinavia protection from back in the day, which is odd as Roku doesn't support that as far as I know. Does it do it with a remux, ie if you do not encode the files and just leave it raw? And if it has multiple audio tracks, does it do it with all the audio tracks? Does it do it if only the server transcodes the audio?

Sorry, from a technical standpoint this is interesting. I doubt it is your disc as it plays fine in VLC and in the browser.

I tried replacing the video file with the original, un-transcoded version, and it doesn't work at all. I get a message saying no compatible streams are available, both on Roku and in the browser. I have no idea if that's normal. I transcode everything to save space, and I've never tried just dumping the original files in there. Anyway, if no one has any idea what's wrong, that's fine, it was largely for curiosity's sake that I asked. It only has a problem in Emby for Roku, but since it happens at exactly the same point, always, I'm guessing it's not an error on your end. Something is weird with the disc or file.

[Luke 42078]

this could be playing a role:

[Blatherscribe 5]

Except that every single other video I have has gone through this exact process, has been transcoded with the exact same settings, and plays with zero problems. I turn off Emby's transcoding because it makes my computer run at 100% load and only introduces playback errors, whereas with it off everything plays perfectly.

I don't think this is Emby's fault. I suspect there's a small strange error on the disc or in the encoding of the original media. I only asked in case you'd ever heard of this, and there was something I could do to correct it. But no worries, I'll try exchanging the disc.

Thanks for giving it a shot! I appreciate the help.

[Luke 42078]

Please let us know if you find anything. Thanks.

[speechles 2055]

&TranscodeReasons=ContainerNotSupported

Okay. This is odd. The Roku is believe it cannot direct play the MKV container for some reason. It might be caused by being told it cannot convert audio or video in your transcoding settings but is allowed to remux. But you picked the PGSSUBS to display. On Roku PGSSUBS must be burned into the video.

>>>>>>  User policy for Kyle
        Enable Playback Remuxing: True
        Enable Video Playback Transcoding: False
        Enable Audio Playback Transcoding: False

Why have you disable video and audio transcoding yet allow remuxing? Why didn't you also disable remuxing?

Because those PGSSUBS are selected it must be throwing off the logic and thinking it cannot use the MKV container. If you disable the Remuxing too it should then direct play and you may not have the issues. It is involving ffmpeg because those PGSSUBS or selected. It gives a false reason for transcoding. MKV is supported on Roku.

-----------------------------

When playing on your Roku press the * button. It will bring up the audio/caption menu.

What is shown for the "Volume Mode". It will show as OFF, LEVELING, or NIGHT. If it is on LEVELING or NIGHT try turning it to OFF and see if it helps. Conversely if it is OFF try using LEVELING or NIGHT to see if it helps.

Some Roku models have problems with single channel AAC and using volume mode one way or the other.

Edited April 4, 2025 by speechles

[Blatherscribe 5]

Hello, just checking back in with the latest on the Ocean's 11 sound glitch. First, if the remuxing setting is the one listed as "Allow changing of container formats," that one does something strange. Deactivating it changes nothing on the Roku, but I can no longer play anything in a browser window. And whether it's on or off, my computer isn't doing any transcoding. Turning off sound leveling also didn't change anything. But thanks for the suggestions, it was worth a shot.

In any case, it appears something is wrong in whatever master file they use for making these Blu-Rays. I exchanged the disc as defective, received the new one today, and the replacement video file has the exact same glitch at the exact same place. Definitely an issue with this particular movie, from the source, rather than an Emby problem. But thank you for trying to find a solution!

[Luke 42078]

Are you still having an issue with this?