# ARC: audio and video are not in sync, ref#52

**URL:** <https://arcam.discourse.group/t/arc-audio-and-video-are-not-in-sync-ref-52/11>\
**Category:** Issues\
**Tags:** firmware, arc, usb\
**Created:** [May 20, 2020, 7:05pm UTC](https://arcam.discourse.group/t/arc-audio-and-video-are-not-in-sync-ref-52/11 "2020-05-20T19:05:26Z")\
**Posts on this page:** 1\
**Showing post:** 44

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**Author:** ![Jevgeni](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@Jevgeni](https://arcam.discourse.group/u/Jevgeni)\
**Post date:** [April 22, 2022, 4:41pm UTC](https://arcam.discourse.group/t/arc-audio-and-video-are-not-in-sync-ref-52/11/44 "2022-04-22T16:41:38Z")

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Sound delay of ~150ms is there, Arcam knows about this, they are “working on it”.  
You can learn more here [Delay on digital and analog inputs - #4 by eeck](https://arcam.discourse.group/t/delay-on-digital-and-analog-inputs/671/4)

Regarding the HDMI - make sure the audio mode on TV is set to PCM, auto did not work for me.

Suggest you also write to official support to show how many customers are impacted by the problems.

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