# 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:** 4

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**Author:** ![AleisterCrumpet](https://avatars.discourse-cdn.com/v4/letter/a/f4b2a3/32.png) [@AleisterCrumpet](https://arcam.discourse.group/u/AleisterCrumpet)\
**Post date:** [July 7, 2020, 6:51pm UTC](https://arcam.discourse.group/t/arc-audio-and-video-are-not-in-sync-ref-52/11/4 "2020-07-07T18:51:42Z")

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Hi jvs1,

absolutely - there is a delay if CD input is not analogue direct. Also, it does not seem to make matters worse wether there’s a Dirac curve applied in digital or not.

Only bypassing the digital circuitry removes it.

I have blamed it onto LG before, which have seen some terrible ARC/AV-Sync issues, but this also made me think it’s actually related to the roundtrip latency.

Thank you for getting in touch with support. Do you think I should open a ticket myself?

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