Adding an audio effect stops nested waveform from rendering

Forum|Forum|1 year ago
August 28, 2024
2 replies
565 views

For a while now it has seemed that multicam audio tracks would seemingly at random stop rendering. For a while back in v23 too many edit points on a nest caused this behaviour but I believe that bug has since been patched (I think anyway, I haven't run into it in a while) but recently similar behaviour has once again been occurring.
I believe I have tracked down the cause. Simply adding any audio effect (or at the very least a highpass or eq as I tested those two) to any audio track in the nest will stop the waveform of the nest track from rendering in its entirety (not just for the section that contains that clip). It also stops all audio tracks from rendering in the case of a multicam nest.
I have attached a video of this happening.

I have tested this on both the current v25 beta as well as v24.6.
We have also tested this in the office and it happens on both windows and mac

multicam_waveforms.zip

This topic has been closed for replies.

T

Tom_editAuthor

Inspiring

@michael_audio_team

but... why? this isnt required on a normal waveform why does it cause a multicam to just vanish? that seems like more of a bandaid fix than an actual solution..?

P

PaulMurphy

Community Expert

This is standard behavior for multicamera source sequences, and the reason is the order in which effects are applied.

In a standard clip, the waveform represents the audio before an effect is applied. However, with multicamera source sequences, you have the unique ability to add an effect to the source files, which changes the waveform. So rather than constantly updating and refreshing waveforms—something that would be unnecessary for most files—Premiere needs to be prompted to re-render the file before it can display waveforms.

To maintain waveforms, try adding the effect to the multi-camera source sequence rather than the clips inside of it.

Another workaround is to add the effect inside the multi-camera source sequence, and then right-click the original audio clip and choose Render and Replace.

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Tom_editAuthor

Inspiring

hello @PaulMurphy , thank you very much for the detailed reply, I appreciate learning the reasoning at a deeper level.

I guess really my question in response would be; is that really the best solution overall? Every workload is of course different and I may be a little biased in the way I'm thinking about this for sure but, is a waveform just blipping out of existence in another timeline a good user experience? It took me months to track this down as the cause and I work in premiere daily. Personally I would never be doing heavy enough audio effect work in a nest to really change the waveform all that much or if I am it being totally accurate on my main timeline isn't really my biggest concern, could an option to add a little warning marker on the nested audio track while just showing the original waveform not be another viable option? I don't necessarily care that much if it's slightly wrong, having it is infinitely more useful than not for me and adding an extra rendering step personally doesn't feel like the ideal solution and requiring it has caused a lot of confusion for me and my team.

Again, I may just be totally off base and a bit biased because I've fought against this for a very long time.

M

michael_audio_team

Adobe Employee

Hi @Tom_edit - You will need to "Sequence > Render Audio" to see the waveforms after adding audio effects.

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