Sony X900e / XE9005 audio delay with ATV 4k over HDMI

Waarez

Standard Member
Since the end of December I have acquired the Sonos Arc, Sub Gen 3 and 2 one SLs.

Very happy with the sound quality overall! Sounds just a bit boomier (bass on -3 and sound sub a bit lower) than my previous separate Jamo speakers, Klipsch 100sw sub and Yamaha receiver.
But what an incredibly good soundstage and just solid sound. A great added value for TV, Series and Movies. I am already a fan.

Only problem: This runs to my Sony XE9005 TV which only supports HDMI-ARC. The Sony native apps Netflix, Disney+ and youtube work well (including Atmos over DD+) - no to little audio delay - maximum 10-30ms, almost imperceptible.

The connected Apple TV 4k (HDMI to Sony), on the other hand... This causes huge lip sync issues (Infuse, Netflix, Disney+) with a typical audio delay of 100-250ms. After hours and hours of troubleshooting and tweaking all possible settings, cables, etc, I've solved it for now by adjusting the audio delay via the alternative media player app MrMC. Depending on the codecs used within the media files, I sometimes have to adjust it a bit, but for most files it's around 240ms. Other Apple TV media apps that do not have an adjustable audio delay are unfortunately no longer useful.

My hope is that this problem will be completely eliminated when I buy an eARC TV in the next few years. Previously, when my Apple TV was still connected to the Yamaha receiver, I had no lip sync issues at all.

If anyone can recommend a good eARC TV that works well with this Sonos setup, I'd love to hear about it. Slight preference for Sony due to superior motion in film and series.
 

Waarez

Standard Member
Do you have HDMI CEC switched on for the Apple TV?
This is enabled yes. It is actually one of the few options I did not play around with.
On my Sony TV I tried:
  • Adapting picture modes
  • Play with A/V sync
  • Change audio to DD instead of DD+
  • ClearAudio on / off

On ATV4k;
  • Match Frame Rate off (TV can handle 24 judder) - this helped a little bit (but still not on par with TV native apps - like 30-100ms delay)
  • WIreless Audio sync with iPhone
  • Change audio to fixed value DD 5.1
 

Pulse1

Well-known Member
Try switching off HDMI CEC on the Apple TV as HDMI CEC is famed for causing sync issues. I have a Denon AVR-X1600 av receiver and that gives me the option to have Arc/earc switched on and HDMI CEC switched off. That stopped my sync issues i was having but it's only Denon/Marantz AV Receivers with earc that give you the option to do that within the receiver itself. Point is only have HDMI CEC switched on in devices that have to be switched on.
 

Waarez

Standard Member
Try switching off HDMI CEC on the Apple TV as HDMI CEC is famed for causing sync issues. I have a Denon AVR-X1600 av receiver and that gives me the option to have Arc/earc switched on and HDMI CEC switched off. That stopped my sync issues i was having but it's only Denon/Marantz AV Receivers with earc that give you the option to do that within the receiver itself. Point is only have HDMI CEC switched on in devices that have to be switched on.
Thanks, this solved Netflix and Disney+ on the Apple TV! Wow that just seems to have amazed me. Infuse still somewhat problematic. Will keep using MrMC for now.
 

Pulse1

Well-known Member
Thanks, this solved Netflix and Disney+ on the Apple TV! Wow that just seems to have amazed me. Infuse still somewhat problematic. Will keep using MrMC for now.
That's good it helped. Unfortunately HDMI CEC can cause alot of problems.
 

Pulse1

Well-known Member
I also have Auto Lip Sync turned on in my Denon AVR-X1600 as well and have no sync issues at all.
 
Last edited:

The latest video from AVForums

Maverick UK Premiere IMAX Review + Top Gun, Tom Cruise, Tony Scott and 4K + Movie/TV News
Subscribe to our YouTube channel
Support AVForums with Patreon

Top Bottom