[Ben Helweg]

If anyone out there is having this issue, I’d like to share how I worked around it.

We were having trouble with a project that seemed completely normal, but no sound would play in any form.
There was nothing in the mixer or project/sequence settings/renderer that would work it out.
On a different workstation the same result was had.

We sent the sequence out in XML, re-ingested into a new project and discovered that all the audio clips had an extra track volume filter and had ‘nandB’ listed for the volume.

After creating a new sequence with a working video clip at the beginning, dropping in contents of the faulty sequence after it and deleting EVERY instance of nandB, did it finally start producing sound.

I noticed that if you had multiple clips of audio on different tracks playing at the same time, if even one had ‘nandB’ on it, they all wouldn’t play and this was discovered after I realised our music track also had the nandB on it.

Solved the problem for now, but doesn’t explain why it happened in the beginning, and why the video crossfades we had needed the renderer to be switched too…

tl;dr – send your sequence or project via XML to a new project + sequence with working audio, delete all traces of volume filters displaying ‘nandB’.