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Audio/Video out of sync via Bluetooth

Discussion in 'Model S: User Interface' started by TheAccuser, Sep 25, 2015.

  1. TheAccuser

    TheAccuser Member

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    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.
     
  2. TonyOrr

    TonyOrr Member

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

    ProSkeptic Member

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    I've noticed this with every BT audio system I've ever used.
     
  4. pgiralt

    pgiralt Active Member

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    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.
     
  5. TheAccuser

    TheAccuser Member

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    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 - - -

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

    pgiralt Active Member

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    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.
     
  7. jeffro01

    jeffro01 Active Member

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    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
     
  8. andrewket

    andrewket 2014 S P85DL, 2016 X P90DL (soon 100)

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

    liuping Active Member

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    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
     
  10. Jool

    Jool Member

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    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.
     
  11. ModelSFL

    ModelSFL Member

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    Do you watch video from plex on your Tesla screen?
     
  12. TheAccuser

    TheAccuser Member

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    No, but that would be awesome. :)

    My kids use Plex for their movies/shows.
     
  13. ModelSFL

    ModelSFL Member

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    Plex is great, I've been using it for years. When I had my last car I ran an Android head unit and installed plex. It was great.
     

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