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Audio/Video out of sync via Bluetooth

TheAccuser

Member
Nov 20, 2014
138
4
Cleveland, Ohio, United States
I'm assuming everyone else is having the same issue as me, but wanted to check here. The audio is noticeably out of sync when watching YouTube, Plex, or other video and streaming via Bluetooth to the car.

Before I took the car into service to complain, I wanted to get some feedback here first.
 

TonyOrr

Member
Jul 10, 2014
48
0
London
I'm assuming everyone else is having the same issue as me, but wanted to check here. The audio is noticeably out of sync when watching YouTube, Plex, or other video and streaming via Bluetooth to the car.

Before I took the car into service to complain, I wanted to get some feedback here first.

Yes, I noticed the same thing. I'm using an iPhone 6 just fyi.
 

pgiralt

Supporting Member
Jun 16, 2013
1,520
155
Cary, NC
This is just an inherit issue with Bluetooth. Bluetooth adds a significant amount of delay so unless the video playback can be delayed to compensate for it, they will be out of sync.
 

TheAccuser

Member
Nov 20, 2014
138
4
Cleveland, Ohio, United States
I've noticed this with every BT audio system I've ever used.

You mean, built-in/factory BT in a car? Aftermarket (plug-in BT modules) seem to be perfect. We do have this same issue in my wife's 2014 Mercedes GL 450 FWIW.

- - - Updated - - -

This is just an inherit issue with Bluetooth. Bluetooth adds a significant amount of delay so unless the video playback can be delayed to compensate for it, they will be out of sync.

It's definitely not a BT stack issue. Do you have a BT headset? Test it out.
 

pgiralt

Supporting Member
Jun 16, 2013
1,520
155
Cary, NC
It's definitely not a BT stack issue. Do you have a BT headset? Test it out.

I have the same problem with my Plantronics Bluetooth headset. There certainly could be some kind of profile or something that allows for low latency that maybe the Plantronics I have doesn't support.
 

jeffro01

Active Member
Jan 30, 2013
2,690
1,953
Teller County CO
It's definitely not a BT stack issue. Do you have a BT headset? Test it out.

I disagree. It's well known that any attempts to stream audio over bluetooth for a video feed will be met with a delay up to 1 second. It's part of the technology and the latency that's added to process the audio, send it wirelessly, decode it, and play it. It is what it is, and it's been like this since the very first days of bluetooth.

Jeff
 

andrewket

Well-Known Member
Dec 20, 2012
5,704
1,525
This is just an inherit issue with Bluetooth. Bluetooth adds a significant amount of delay so unless the video playback can be delayed to compensate for it, they will be out of sync.

This. Android has an option to add delay to the video to compensate. iOS still does not.
 

liuping

Active Member
Jul 23, 2013
2,242
896
San Diego
I'm assuming everyone else is having the same issue as me, but wanted to check here. The audio is noticeably out of sync when watching YouTube, Plex, or other video and streaming via Bluetooth to the car.

Before I took the car into service to complain, I wanted to get some feedback here first.
This is a common problem in many cars and bluetooth headsets (google "video player delay bluetooth").

The VLC player app lets you adjust the audio delay while playing videos. There may be others as well, but it's free
 

Jool

Member
Jun 26, 2015
285
6
San Diego, CA
I've seen audio/video sync issues on every bluetooth-equipped vehicle I've used. Unfortunate, but not much you can do unless your software has a delay option as mentioned above.
 

ModelSFL

Member
Jun 28, 2015
193
12
Central, FL
I'm assuming everyone else is having the same issue as me, but wanted to check here. The audio is noticeably out of sync when watching YouTube, Plex, or other video and streaming via Bluetooth to the car.

Before I took the car into service to complain, I wanted to get some feedback here first.
Do you watch video from plex on your Tesla screen?
 

Landreth

New Member
Mar 31, 2017
1
0
Los Angeles, CA
Just have to suggest Serviio as Plex is a monster and I like Serviio better....of course either option requires a server but Serviio is actually much nicer if run in the background.
 

cybergates

Member
Feb 14, 2017
526
219
So Cal
the audio sync problems here are the worst I've seen on any car. Elon, don't u watch netflix on iPad in your car while charging? This has to be something they are aware of? (Much better would be allowing us to watch video on the screen while charging).
 

AllenWong

Member
Dec 9, 2014
738
292
Orlando, FL
I watch movies/tv using VLC on my MacBook connected via BT to my Tesla. Then I press "g" to change the audio delay to around -500 to -550 ms. That's how much audio lag there is: over half a second.
 
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SeminoleFSU

Voluntaryist
Apr 5, 2013
1,456
359
Atlanta, GA
Is there a way to adjust this on an Android phone I'm some manner where all apps are compensated? VLC only allows for playback of local content, right? What about those watching streaming content?
 

AllenWong

Member
Dec 9, 2014
738
292
Orlando, FL
Is there a way to adjust this on an Android phone I'm some manner where all apps are compensated? VLC only allows for playback of local content, right? What about those watching streaming content?
VLC does streaming content as well including YouTube (might need some plugins). You can always hotspot your Android to your laptop. That's what I do. But usually I just download the videos I want to watch beforehand and play it back on VLC on my laptop in the car.

If I'm not mistaken, VLC added audio delay options in the Android version back in 2015.
 

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