YouTube Audio/Video Sync (delisted)

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Fix wireless audio streaming delay for YouTube

Latest reviews

• (2023-09-11) Blu Azure: I have an old school Home Theater PC with HDMI to TV--> optical out to a Denon receiver. Over just Youtube I get an audio delay which I was unable to get rid of. It was worst in Firefox and a bit better in Edge, but still there. I just found this plug-in for Chrome and it absolutely works, my audio/video are in perfect synch now. The + and - slider makes this a winner.
• (2023-08-14) Soul S.: I'm connected to bluetooth speakers with quite the delay, I was scared that the extension only allows audio delay.. but after adding, I found that this extension also allows video delay (meaning - delay in audio) and this was absolutely perform for my case. Thank you for this extension!
• (2023-07-26) Alan Barker: This was a fantastic extension, which worked for the most part flawlessly, however very recently - due possibly to updates in Chrome or changes in YouTube - it no longer works. I have tried posting in the support the section, along with many other previously satisfied users, alas the author has not even acknowledged these posts. I was so impressed with the extension that I "bought the author a coffee". However I feel that a one star rating is now justified. This will be changed to a 5 star when the author tries to fix the extension or even says he is aware of the problem and will attempt maintenance in the near future. Thank you so much Adrian, working perfectly again! ❤
• (2023-07-22) Xavier Boscus: Génial ! Cette extension refonctionne enfin. Fini les coupures de son. Merci.
• (2023-07-16) Tatsuya T (Tomkeifer): Now it works again.Thanks.
• (2023-07-03) Göran Helsingborg: No sound at all when enabling this extension. Same for the Firefox extension 😥
• (2023-06-29) Vaio San: Is not working anymore in Google chrome or Brave and app mute the sound. When I disable the app then sound come again.
• (2023-06-29) Matheus Vinicius Ribeiro Silva: Doesn't work at all anymore. No audio coming out.
• (2023-06-23) Anonymous Anonymous: chrome broke this extension with its updates aka google breaking everything like normal
• (2023-06-11) b west: My use case is with a Pair of Devialet Phantom speakers which are paired to my MAC via bluetooth for home theater use. The Devialet speajers already have an inherent delay of around 350ms for a bluetooth connection, on top of additional delay from my MAC to the speakers via bluetooth and youtube. This add-on to Chrome is a FANTASTIC tool to address my specific needs. I was able to configure the exact audio delay to have perfect lip sync when playing youtube videos to my Phantoms. However, it seems the add-on is no longer working. Perhaps due to recent Chrome updates? hen i enable this add-on, no sound is output via bluetooth. So I have to disable the add-on now. I hope the developer can please fix this as this add-on is such a god send for those who need to correct lip sync issues. But even if not, I wish to still thank the developer for doing what they have already done for this issue.
• (2023-06-07) Wessel Kroos: Doesn't seem to work anymore
• (2023-05-27) Juan Miguel Sanchez: works for youtube and my google home speaker
• (2023-05-23) Lol Lolol: WOAH THIS IS SOOOOO GOOD !!!! THANK YOU SO MUCH TO THE CREATOR !!!!! My pc doesnt have bluetooth so I connect my phone to SoundWire and connect my TWS to it, this gave it the problem of latency on YouTube, this fixes it so good it even had automatic finder through click test, its so good !!!!
• (2023-05-12) no video (Laci): Simply works. It works very well and and is very easy to use, tho it does sometimes make the audio cut out here and there. But pausing the video and resuming usually solves that.
• (2023-03-25) Andrew Wall: This extension seems very buggy. It sometimes works, but mostly seems not to, meaning that there is no sound at all. I use it for YouTube videos and when it does start working it will work right to the end of the video. I like the settings widget it adds to the YouTube videos, but I've had to disable it as it has annoyed me for the last time.
• (2023-02-22) Tomasz Żet: Omg at last! Half a year of torment after buying 9.3 home cinema with Onkyo amplifier no capable of A/V sync bluetooth streaming. Now it's done.
• (2023-02-05) Gil: It Works perfectly!!!! It would be great if it could sync other sites like Twitch, Netflix and Prime Videos.
• (2023-02-01) Vladimir Muzichuk: Thanks man, this is perfect for the pixel buds pro - the only earbuds that have such a giant delay on windows 10!
• (2023-01-24) Emiliano Gioia: Even though the audio cuts briefly whenever you unpause, forward or rewind a video, this extension does the job pretty well. No more lip syncing issues with AAC / SBC headphones!
• (2023-01-10) Bert: Thank you so much. Delay on bluetooth ear buds is terrible :(
• (2022-12-24) guilhaume: Doesn't work on chromium 108
• (2022-12-23) Valentin Leung: Work... when it feels like it... The start of the video is always choppy as it seems to have to calibrate itself. If the sound comes up, then it will work for the entire video, but sometimes, it just stay silent. So.. not sure what is happening.. Because its function is so random, I disabled it. Hopefully an update will make it work flawlessly.
• (2022-12-22) Naender: Works very nicely with the delay calibrator! I hope this keeps being updated in the future cause it's really useful for me.
• (2022-12-14) Loken: Отличное расширение, наконец можно смотреть видео на ютубе в блютуз наушниках с нормальной синхронизацией звука и видео. Легко настраивается, включается и выключается одним кликом, а можно вообще включить автоматическое включение при подключении блютуз наушников.
• (2022-11-19) Niccster10: Works well... when it works. The VAST majority of the time, audio doesn't play at all. When it does, it either just cuts in and out, or it plays audio from the ad during the video, and then never switches to the video audio. I suggest testing your software more extensively before claiming "the bug was fixed in v0.3.6"
• (2022-11-06) Codo Coderson: It works great and it's really well programmed 👌🏼
• (2022-10-25) Seth Peace: I gave microphone permission but it complains "Permission denied. You need to allow access to microphone in order to access the audio output device." I really want this feature because my bluetooth earbuds have delay but my speakers don't, so switching between the two would be nice.
• (2022-10-23) Markus Downhouse: For me, Bluetooth delay is 170ms. I have synced my main speaker with a Bluetooth speaker with Voice Meter. Now, just like in VLC you can reverse the delay in Youtube with this. The source code is based. Great! I'm sad Manifest V3 is forced in chrome in a few months, killing this extension.
• (2022-10-09) Cork: Nice
• (2022-10-06) Niramit Cheunprapanusorn: Good tool for bluetooth headphone! The delay is adjustable
• (2022-10-04) Carl И: Tried it but it just mutes the sound when enabled. Using Bluetooth headphones that are about 40 ms delayed
• (2022-09-21) Broeder Said: uitstekend en werkt super goed. Zou je dit ook willen maken voor windows? zodat de vertraging van mijn bluetooth speaker bij films in andere apps ook gecorrigeerd kan worden. eventueel tegen een vergoeding
• (2022-09-20) Pacdev: I don't usually review a chrome extension, but boy is this such a lifesaver!
• (2022-09-19) bill: I think it has some issues with SponsorBlock autoskipping segments. Half the time the video just ends up muted
• (2022-08-10) Magni Lüthi: does this work for netflix????
• (2022-07-25) Weihan Kong: This extension does not work for my YouTube videos played in my chrome. I'm using Macbook. The change of "Audio Delay" does not have any effect.
• (2022-07-22) Jaeyoung Choi: It works - sorta... When I turn on the Auto Toggle with my LG TFP-8 bluetooth on, it simply mutes everything. But it works without the Auto Toggle function, so it's a win I guess...?
• (2022-07-19) Alex Stromin: This extension simply does not work, I have made sure I have the latest version of it as well as an updated version of Chrome but it still just mutes the video entirely and doesn't have any function as an extension. I keep seeing comments by the developer saying 'the bug was fixed' alas no such bug was fixed. Disappointed! Seems like an easy fix
• (2022-07-11) Choonik Lee: Thanks for fixing the bug! It works wonderfully!!!
• (2022-03-19) Franco Ollino: It works for half a second then the audio gets silent, tried it for several days and nothing made it work
• (2022-02-19) Pedro Henrique: the extension don't work for me and mute's the youtube audio. my version:98.0.4758.91(edit) sorry is my version
• (2022-02-13) LMT: Sound quits with almost all videos, no update, no reply for inquiry
• (2022-02-13) LUCAA LIIMA: Está silenciando os vídeos no Chrome
• (2022-02-11) Yang Du: This extension works like a charm on my Macbook Pro. However on my Windows 10 machine, there's no effect at all even after I restarted the browser. Is there something wrong with my computer?
• (2022-02-06) Eddy Couvreur: Une mise à jour semble corriger le problème de coupure du son sur certaines videos. Merci.
• (2022-02-02) Niketan Kumar: can we get the same for TWITCH pls
• (2022-02-01) DubbleTee-: Doesn't work. Actually disables all audio on youtube.com.
• (2022-01-20) Carl La Fong: Really needed a utility like this but it simply does not work, Every time it's enabled, it completely kills the audio. Toggle off, audio returns. I tried uninstalling/re-installing but it did not help.
• (2022-01-14) Matheus Albuquerque: Worked great before. Now it mutes videos on Edge.
• (2022-01-07) pluvillion: It only worked one time and upon exiting and reopening Edge the whole extension now breaks the site. - It either plays only the audio and the site it stuck with infinite loop. - Video plays but the audio is crackling. - Video DOESN'T play past a certain point. - Reloading the whole site is basically the final nail in the coffin (the whole site just crashes). The only fix would be removing the extension altogether. Trying to reinstall it will cause all the issues to resurface so there's really no point.

Latest issues

• (2023-09-12, v:0.3.8) Phong Nguyen: This extension is broken again as of 9-11-2023
  It was broken back in June, fixed in July in version 0.3.8, and it seems to work again after that. It has been working for a while, but I just tried it again today and it's broken again. The exact same symptom as before. A little bit of broken sound in the beginning, then complete silence.
• (2023-08-21, v:0.3.8) Vincenzo Quinci: Audio Muted
  This extension doesn't work almost at all. The audio is muted. I can manage to get it works by switching tabs and pause and resume the video multiple times, but it works like 1 out of 10 times.
• (2023-07-13, v:0.3.7) Mauricio Luz: o youtube n reproduz som quando isso está ativado.
  como faço para solucionar?
• (2023-07-07, v:0.3.7) Sven Hinrichs: Sound
  Unfortunately doesnt work any more. Sound is muted..... Im really sad , because i loved the extension....
• (2023-06-27, v:0.3.7) Jason Kessenich: It stopped working
  For my setup, with my Pixel Buds Pro, connected to my laptop via bluetooth, in order to watch youtube videos, the offset time has to be around -200 ms. Your extension used to work flawlessly, and now it doesn't. And by "not working", I mean that I hear no audio with your extension enabled. I can see the video playing, but have no audio. This happens while my Pixel Buds Pro are connected via bluetooth, OR with my usb headset. The fact is, with the extension enabled, there's no audio. While the video is playing and there's no audio, if I move the volume slider a bit, the audio will blip in and out, but it never stays on fully. Chrome and Windows are completely updated. I really need this extension to work properly. Please let me know you get this and you're looking into it.
• (2023-06-13, v:0.3.7) Phong Nguyen: YouTube Audio/Video Sync extension no longer works.
  This YouTube Audio/Video Sync extension no longer works with YouTube on Chrome as of a week or so ago. When switched on, you hear a tiny bit of sound in the beginning and there is no more sound after that.
• (2023-06-10, v:0.3.7) AfricanBootiLick3r: Sync Dont work
  working until recently
• (2023-06-09, v:0.3.7) Paul Nicholas: Sync stopped working?
  Hi there, Just in case you haven't been alerted/weren't already aware - something seems to have happened to cause ur extension to lo longer work in Edge (+Chrome) recently. There are other users seeing the same issue and have detailed their observations in the "Support" tab. Fingers-crossed it's not a nightmare to fix - as ur extension awesome for Bluetooth users like me! 😬 Thanks in advance.
• (2023-06-08, v:0.3.7) indrajit mazumdar: Just dead air.
  Has been working for a number of years. Now when I engage the tiniest duration of 'noise' and then dead air. Have removed and redownloaded with no effect on above.
• (2023-06-06, v:0.3.7) Alan Barker: Broken for me in Chrome since around 4th June 2023
  Have successfully used with Bluetooth headphones for at least a year. Suddenly a few days ago it stopped working. Chrome update? Now it attempts to synch once and then stops with no audio. Hope you are able to find a fix for this, but thanks for all the videos I've been able to watch with perfectly synched audio up to this point. Has been a great extension, and was well worth the "coffee" I bought you.
• (2023-04-13, v:0.3.7) Filipe Crespo: No sound
  If Youtube is opened as a PWA there's no sound. On a regular tab it's ok.
• (2023-01-08, v:0.3.7) Foo Bar: broken again, several ways
  1. some videos, no sound. 2. if I cycle enabled, sound but no change in delay. chrome 108 on win 10.
• (2022-11-10, v:0.3.7) P_E_A_ R_L_Y: Sound Issues
  When I enable the extension, YouTube videos will either play with no sound or the sound stutters and goes on off every second. When I turn off the extension, I have no sound issues. My YouTube is out of sync by -250ms with my Bluetooth headphones, which is why I need this extension to be fully working. What is the fix for this please?
• (2022-10-25, v:0.3.7) Seth Peace: Can't enable turning off the extension when connected to another audio source
  I gave permission for the microphone but it just says "Permission denied. You need to allow access to microphone in order to access the audio output device."
• (2022-09-08, v:0.3.7) Norwegian Smores: access denied.
  for whatever reason i am blocked from adding directly... may i have the crx file to add myself manually?
• (2022-07-28, v:0.3.6) Jaeyoung Choi: Audio weirdness
  It plays the audio of the previous video when the current video is playing for some reason.
• (2022-06-10, v:0.3.5) tamir silva: ta ruim
  ta pessimo viu meu deus, o app trava, tira o som, perde o sync, uma hora ta certo outra hora o video ta adiantado....to atras de outro pq esse aqui é horrivel
• (2022-06-04, v:0.3.5) Michel Lunetta: audio quits
  Hey, just checking if the development is continuing. The is indeed a bug that makes the sound stop after a second or so.
• (2022-04-10, v:0.3.5) Lee Kevin: Can develop an extensions that supports all HTML5 Video Players?
  Only YouTube support is not very useful
• (2022-03-17, v:0.3.5) Austin Kalinowski: dude do you not see the comments?>
  It breaks the sound when you turn it on. Fix your app or delete it
• (2022-02-19, v:0.3.5) Pedro Henrique: Áudio
  when i turn it on the sound disappears. when i turn off the sound appears. the extension is broken. Chrome Os 3
• (2022-01-15, v:0.3.5) Carl La Fong: Kills Audio
  As reported by others, when enabled for a site, the audio quits. When disable, audio returns. Chrome Version 97.0.4692.71
• (2021-12-28, v:0.3.5) sacha m: Bug
  When I activate the extension, I get no sound, When it disable, sound works. Macbook Air M1 - Big Sur - Wonderboom 2
• (2021-12-28, v:0.3.5) leshkraven: Brave Browser issue
  I have been unable to get it working while playing YT in Brave when I right and open video in new tab. Audio cuts out 0.5sec into the start when a video is played this way. If I select the video normally to view in the same tab it plays ok, if I choose another video from the side it plays ok. Can you fix the new tab issue. I want to be able to return to the main tab to pick videos without losing them to the auto refresh.
• (2021-12-11, v:0.3.5) Fredrik Enetorp: Audio disappears at the start of videos
  A new problem with the extension have recently been introduced. On a fresh page load, with the extension enabled, the audio plays for about a quarter of a second before it disappears. This started happening very recently, making the extension unusable. Interestingly, if an advertisement plays before the video, its audio disappears instead, allowing the audio of the video to play as normal. I'm using Chrome and I wasn't able to recreate the issue on Firefox.
• (2021-12-06, v:0.3.5) Rafael Biasi: Configurable Sites
  Would it be possible to configure the sites where the extension could be used? I say that because I wanted to sync the audio of some videos with Netflix and Prime Video problem.
• (2021-12-04, v:0.3.5) origin Y: How can I give this extension program access to the device?
  'Auto toggle sync when current audio device is connected' When I click on this item, the text below is displayed. 'Permission denied. You need to allow access to microphone in order to access the audio output device.' How(where) can I allow this extension to access the device?
• (2021-10-10, v:0.3.5) LMT: Windows 11
  Hello, thanks for the great extension! (sorry for my poor english, I'm korean.) I updated to windows 11 yesterday for aac support, and your extension worked in youtube but sometimes the sound keeps popping, mainly when I opened new video in same tab or resume after paused for a while. could you please support this as well? thanks.
• (2021-07-24, v:0.2.1) Nikolett Kápolnai: Tried to modify it
  Hey! I tried to modify your extension to use it on other sites, but I have no experience and I'd really appreciate if you coud check it out. Mega link: https://mega.nz/folder/t7oVCQqK#sqZUlbkp1TH7Qd1ecKpC5w
• (2021-07-13, v:0.2.1) Austin Richards: Are there plans to have the extension save it per audio output device?
  If I switch to bluetooth, it works great. But once I turn bluetooth off and play through wired speakers, the delay is now de-syncing the audio. Can the extension remember your delay per audio device, so when you switch audio devices it auto adjusts? Thanks!
• (2021-06-14, v:0.2.1) Gareth: Twitch
  Hi friend, I love your extension. Thanks a ton for making it. It's a life saver for bluetooth earphone users. I was wondering if you could make this extension to cover all the websites. Like anything you open on chrome. I'm not sure if it's possible since I have no idea how it works. I imagine it would be too much of a hassle if you had to do every major video streaming site one by one. But if it's a code that can be written into chrome to delay the video in general, that would be perfect. And if not, at least please include twitch, or make another extension for the same purpose for twitch. Thanks again!
• (2021-05-09, v:0.2.1) leshkraven: Audio cutting out
  Every time I choose a different location in the video when moving the slider the audio starts cutting out and sometimes doesn`t stop. I have no choice but to close the tab and open the video again. I is restricting me from fast-forward and rewind. I seem to be having great difficulty with YT audio/video sync since getting a soundbar to use along side my monitor from my PC. I use optical cable from SB to PC and DP 1.4 to the monitor for video. I have troubleshooted everything for weeks but no luck even with multiple drivers tried. This delay works but the cutting out on and off is super annoying
• (2021-05-06, v:0.2.1) Gregory Stroud: Audio Issues
  I use a Youtube Audio/Video Sync extension while playing Youtube over my in-car bluetooth. It worked flawlessly for a few weeks. Now, it doesn't work unless I open and play Pandora. It gets better.... When I have the Pandora webpage open it will play music and the youtube audio. If I mute Pandora the music is muted and the Youtube audio is left playing. If I click off Pandora window; Youtube audio quits playing. This only happens when I have the extension active.
• (2021-03-16, v:0.2.0) Vipula Fernando: Memorize delay against a specific video
  This plugin is great to fix Audio/Video Sync issues, but to be really cool, it should keep a small local database that stores the delay for each video and so we do not need to enable/disable it when we are changing the video
• (2021-02-22, v:0.1.9) Venkatesh Jagannathan: Youtube Music Volume stopped working when this extension is enabled
  I was able to successfully isolate issue to this extension on Chrome/88.0.4324.186. Gives following error in dev tools console content-script.js:161 Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'. at getCssProperty (content-script.js:161) at adjustVolumeForSyncByVideoElement (content-script.js:201) at HTMLVideoElement.adjustVolumeForSync (content-script.js:186) getCssProperty @ content-script.js:161 adjustVolumeForSyncByVideoElement @ content-script.js:201 adjustVolumeForSync @ content-script.js:186 volumechange (async) adjustVolumeForSyncByVideoElement @ content-script.js:199 adjustVolumeForSync @ content-script.js:186 volumechange (async) adjustVolumeForSyncByVideoElement @ content-script.js:199 adjustVolumeForSync @ content-script.js:186 volumechange (async) g.k.setVolume @ base.js:7278 Aya @ base.js:4479 NN @ base.js:4478 Fya @ base.js:4488 g.k.Oa @ base.js:8281 g.k.V @ base.js:5834 g.Q.V @ base.js:5945 XV @ base.js:4368 g.k.bJ @ base.js:8172 (anonymous) @ base.js:939 bm @ base.js:783 g.k.dispatchEvent @ base.js:5764 g.k.dispatchEvent @ base.js:6576 listener @ base.js:3165
• (2021-01-28, v:0.1.9) ebaender: Audio delay keeps getting reset
  Hi, your addon works great, but the delay gets reset to 0 every time you open a video or refresh the page. Any idea what could be causing this? Using the latest chromium version, cookies are enabled in case that matters.
• (2021-01-17, v:0.1.9) Jean-Christophe Blondiau: YouTube Audio/Video Sync - permission
  Before downloading this extension "YouTube Audio/Video Sync - permission", a message says: "It can; Read and change your data on all googlevideo.com sites and all youtube.com sites" Could you specify the data that can read as a result and the data that can be changed when adding and activating the extension above?
• (2020-12-23, v:0.1.9) Meister Pumuckl: Not doing anything
  Sorry but it dosen't change anything. It was already a hasse to get it to show in the video (untick and tick the option) but if you set to any value it wont change anything. Have only 4 addons installed, one is ublock origin. None others concerning youtube. (Same thing with nothing happening was experienced in the fireofox addon too!)
• (2020-12-05, v:0.1.9) Tyler Yang: Great extension!!!
  This exactly solved my problem of audio lag bc of wifi/bluetooth speaker!!! Thank you so much. I wonder if this extension is also possible to be used on Netflix? Thank you so much Adrian!
• (2020-07-04, v:0.1.1) Adrian Ilie: The audio keeps cutting out
  If the audio keeps cutting out, you could try installing h264ify extension and see if that solves it: https://chrome.google.com/webstore/detail/h264ify/aleakchihdccplidncghkekgioiakgal On most newer machines YouTube Audio/Video Sync should be working well, but older machines might struggle to sync. This is because YouTube streams VP8/VP9 encoded video by default. "h264ify makes YouTube stream H.264 videos instead of VP8/VP9 videos."