# Audio Delay when using Match Framerate tvOS Option **URL:** \ **Category:** Plex Players\ **Tags:** apple-tv\ **Created:** [March 28, 2022, 12:20am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211 "2022-03-28T00:20:51Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![maerek](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/maerek/32/98172_2.png) [@maerek](https://forums.plex.tv/u/maerek)\ **Post date:** [March 28, 2022, 12:20am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/1 "2022-03-28T00:20:51Z")
[Plex Media Server (2022-03-27).txt](https://forums.plex.tv/uploads/short-url/gprPULvMUziDcXMeTrSWn41qWFK.txt) (709.1 KB) **Server Version:** PlexMediaServer-1.25.8.5663-e071c3d62 **Player Version** : tvOS Plex App version 8.0 (2172), running on tvOS 15.4 (19L440) **Condition and Reproduction** : have Match Frame Rate == Enabled for tvOS. **Description** : Audio is noticeably delayed for the content streamed to my Apple TV 4K HDR from my Plex Server. Delay appears to occur regardless of playback file type and resolution (ex: 1080P and 4K HDR). (I have not tested other Plex streaming options, such as the free tv/channels/shows/movies). Note: for the file I was playing during this testing (my copy of Sicario in 4K UHD), when enhanced debugging information is turned on for the tvOS app, I can see that the FPS (container) == 24.416666, and the FPS (filters) == 23.975995. The Display FPS is 23.976. The Audio is converted to FLAC 7.1 (original for the file I was playing in the logs was TrueHD audio; see details below, pulled from VLC Player). **File Details** (for log generation, although as mentioned, issue occurs with all streamed files from my server): **Stream 0** Codec: MPEG-H Part2/HEVC (H.265) (hevc) Language: English Type: Video Video resolution: 3840x2160 Buffer dimensions: 3840x2176 Frame rate: 23.976215 Decoded format: Planar 4:2:0 YUV 10-bit LE Orientation: Top left Color primaries: ITU-R BT.2020 Color transfer function: SMPTE ST2084 (PQ) Color space: ITU-R BT.2020 Range **Stream 1** Codec: TrueHD Audio (trhd) Language: English Type: Audio Channels: 3F2M2R/LFE Sample rate: 48000 Hz Bits per sample: 32 Happy to provide additional details / work with the Plex team on this one. ---
**Author:** ![Volts](https://avatars.discourse-cdn.com/v4/letter/v/a5b964/32.png) [@Volts](https://forums.plex.tv/u/Volts)\ **Post date:** [March 28, 2022, 12:39am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/2 "2022-03-28T00:39:31Z")
What happens if you manually adjust the Apple TV to 24fps, and disable `Match Content` / `Match Framerate`? How are things connected? `Apple TV` → `TV`, or `Apple TV` → `Receiver` → `TV`? ---
**Author:** ![Achilles](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/achilles/32/16864_2.png) [@Achilles](https://forums.plex.tv/u/Achilles)\ **Post date:** [March 28, 2022, 5:38pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/3 "2022-03-28T17:38:30Z")
This is an issue with PMS as other devices capable of refresh rate switching are also seeing this such as the Shield and the Amazon FireTV. @chuckpa @chrisallen and I are looking into it. I discovered this behavior this past weekend. This regression has been around since the launch of PMS `v1.25.0.5282`. The transcoder is sending 24.416666fps in the stream headers. ---
**Author:** ![chrisallen](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chrisallen/32/309972_2.png) [@chrisallen](https://forums.plex.tv/u/chrisallen)\ **Post date:** [March 29, 2022, 5:20pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/4 "2022-03-29T17:20:51Z")
Can you please test if the issue persists after downgrading back to PMS 1.24.5? Llink: [https://downloads.plex.tv/plex-media-server-new/1.24.5.5173-8dcc73a59/debian/plexmediaserver\_1.24.5.5173-8dcc73a59\_amd64.deb](https://downloads.plex.tv/plex-media-server-new/1.24.5.5173-8dcc73a59/debian/plexmediaserver_1.24.5.5173-8dcc73a59_amd64.deb) ---
**Author:** ![maerek](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/maerek/32/98172_2.png) [@maerek](https://forums.plex.tv/u/maerek)\ **Post date:** [March 29, 2022, 8:50pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/5 "2022-03-29T20:50:45Z")
Thanks for the focus on this issue! @chrisallen - I downgraded my server version to 1.24.5.5173-8dcc73a59 using the package from the link you provided. Retested with the same exact configuration (Apple TV tvOS version and app version, same media, etc.). Still seeing an audio delay. Anecdotally, the delay seems smaller, but that might just be a placebo effect. re: the stream aspects (from enhanced video player debugging option; this was direct stream for video, transcode for audio): - FPS (container): 24.416666 - FPS (filters): 23.975995 - Display FPS: (null) (23.976) - Hardware Decoding: videotoolbox (videotoolbox) ---
**Author:** ![maerek](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/maerek/32/98172_2.png) [@maerek](https://forums.plex.tv/u/maerek)\ **Post date:** [April 7, 2022, 2:37am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/6 "2022-04-07T02:37:26Z")
Following up on this. @chrisallen - anything I can do to assist, or ETA on a fix/new version to test? ---
**Author:** ![chrisallen](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chrisallen/32/309972_2.png) [@chrisallen](https://forums.plex.tv/u/chrisallen)\ **Post date:** [April 7, 2022, 2:53am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/7 "2022-04-07T02:53:09Z")
Nothing yet. All that rules out is the 24.42fps value that appears to be a red herring. I am working on narrowing down a similar issue for Android TV but don’t have any fix yet to share sorry. ---
**Author:** ![maerek](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/maerek/32/98172_2.png) [@maerek](https://forums.plex.tv/u/maerek)\ **Post date:** [April 9, 2022, 1:37am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/8 "2022-04-09T01:37:31Z")
Thanks @chrisallen - appreciate the continued work on this. Let me know if there’s anything I can assist with (build testing, swapping ffmpeg builds, etc). Sounds like there’s a broader userbase that is experiencing the same issue, so happy to help where I can. ---
**Author:** ![maerek](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/maerek/32/98172_2.png) [@maerek](https://forums.plex.tv/u/maerek)\ **Post date:** [May 7, 2022, 2:07pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/9 "2022-05-07T14:07:21Z")
FYI @chrisallen , @ChuckPa and @Achilles , adding a reply to keep this thread alive. ---
**Author:** ![Achilles](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/achilles/32/16864_2.png) [@Achilles](https://forums.plex.tv/u/Achilles)\ **Post date:** [May 7, 2022, 5:54pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/10 "2022-05-07T17:54:25Z")
I am seeing this issue myself on multiple setups using Apple TV. I have resorted to configuring the Plex client to use the old player engine in the settings. This reverts the Plex app to use Apple’s AVPlayer. It will transcodes more often but no more audio lip sync issues. ---
**Author:** ![JohnConner](https://avatars.discourse-cdn.com/v4/letter/j/2bfe46/32.png) [@JohnConner](https://forums.plex.tv/u/JohnConner)\ **Post date:** [May 9, 2022, 4:53pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/11 "2022-05-09T16:53:30Z")
Absolutely, horrible that there is no fix for this yet, Netflix and all the other players work now…… PLEX?? Edit: just installed Infuse and linked Plex, works perfectly now… Would love an update here when you guys have a beta out for this ---
**Author:** ![Achilles](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/achilles/32/16864_2.png) [@Achilles](https://forums.plex.tv/u/Achilles)\ **Post date:** [May 9, 2022, 10:08pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/12 "2022-05-09T22:08:57Z")
I also have resorted to using Infuse as a Plex Media Server client when using my Apple TV 4K boxes. With the Plex client on Apple devices, the audio leads the video as bad as by 1-2 seconds. ---
**Author:** ![JohnConner](https://avatars.discourse-cdn.com/v4/letter/j/2bfe46/32.png) [@JohnConner](https://forums.plex.tv/u/JohnConner)\ **Post date:** [May 11, 2022, 11:15am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/13 "2022-05-11T11:15:23Z")
Is it possible to get an update on this, would be nice to not have to use 3th party programmes for plex, since the userinterface sucks in Infuse. @chrisallen , @ChuckPa and @Achilles Perhaps it would be nice to have a list of known issues where we can follow the progress? ---
**Author:** ![chrisallen](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chrisallen/32/309972_2.png) [@chrisallen](https://forums.plex.tv/u/chrisallen)\ **Post date:** [May 11, 2022, 9:26pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/14 "2022-05-11T21:26:11Z")
Hi @JohnConner and @maerek have tried with the Apple TV 4K connected directly to my LG OLED TV and cannot reproduce the delay issue. I have also connected the Apple TV 4K directly to my soundbar (which then connects to my TV) and cannot reproduce. Can you give any more details on your setup? ---
**Author:** ![hexxcode](https://avatars.discourse-cdn.com/v4/letter/h/848f3c/32.png) [@hexxcode](https://forums.plex.tv/u/hexxcode)\ **Post date:** [May 12, 2022, 4:40am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/15 "2022-05-12T04:40:52Z")
Hey, Hallo, I got the same problems with audio delay. Plex is installed on my NAS. Setup: LG TV - HDMI Cable to Denon AVR X1600H - Apple TV4k (2021) For some weeks I am encountering Audio Sync Problems, but only with PLEX (other apps work perfectly) When I set Audio Delay to ca. 150cm on my AVR it is better. But then Netflix and Prime Video etc. are out of sync. Turning off “match framerate” in ATV helps. But video not as smooth. Using old player in Plex also works. But video not that sharp. ---
**Author:** ![maerek](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/maerek/32/98172_2.png) [@maerek](https://forums.plex.tv/u/maerek)\ **Post date:** [May 16, 2022, 12:39am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/16 "2022-05-16T00:39:17Z")
@chrisallen - my set up is listed below. Just watched my 4K version of Dune, which I ripped directly from my Blu-ray copy. I noticed that the video _lagged_ the audio. Similar to @hexxcode , I could set an audio delay, but then playback in all of my other AppleTV applications would be affected. Happy to pull more debug information. - AppleTV 4K 2nd Generation (64GB) (tvOS 15.4) running the Plex app (8.2 (2517)), connected via HDMI to… - Denon AVR-S730H, outputting via HDMI to… - Sony XR65X90CJ Audio Delay disabled on my Denon receiver. ---
**Author:** ![maerek](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/maerek/32/98172_2.png) [@maerek](https://forums.plex.tv/u/maerek)\ **Post date:** [May 16, 2022, 12:41am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/17 "2022-05-16T00:41:03Z")
@chrisallen - adding, I’m happy to pull any debugging information you need. ---
**Author:** ![hexxcode](https://avatars.discourse-cdn.com/v4/letter/h/848f3c/32.png) [@hexxcode](https://forums.plex.tv/u/hexxcode)\ **Post date:** [May 24, 2022, 12:57pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/18 "2022-05-24T12:57:09Z")
bump… ---
**Author:** ![hexxcode](https://avatars.discourse-cdn.com/v4/letter/h/848f3c/32.png) [@hexxcode](https://forums.plex.tv/u/hexxcode)\ **Post date:** [May 31, 2022, 8:58am UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/19 "2022-05-31T08:58:56Z")
another week ---
**Author:** ![hexxcode](https://avatars.discourse-cdn.com/v4/letter/h/848f3c/32.png) [@hexxcode](https://forums.plex.tv/u/hexxcode)\ **Post date:** [June 6, 2022, 5:44pm UTC](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211/20 "2022-06-06T17:44:19Z")
Another week [Next page](https://forums.plex.tv/t/audio-delay-when-using-match-framerate-tvos-option/784211.md?page=2)