Live Stream Audio Can Become Out of Sync or Glitchy

Applies to


The below symptoms only apply to Cablecast Live using Blackmagic input cards.


Issues with upstream audio introduced by routing switchers are certain types of signal processors can make the problem present itself. The issue has been identified by Blackmagic, though they have not given us a specific cause.


Install patched drivers from Blackmagic available here:

To install the drivers:

  1. Stop the Live Stream
  2. Uninstall current Blackmagic Desktop Video software
  3. Follow restart and shutdown prompts

When software install is complete restart the stream.

Additional Information

We are working with Blackmagic to resolve the issue and when a fix is finally released we will update the Cablecast installer to ensure the correct version is installed.

Article ID: 445
Created On: Tue, Oct 9, 2018 at 11:43 AM
Last Updated On: Tue, Oct 9, 2018 at 11:43 AM
Authored by: Ray Tiley []

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