bug - "Generate audio waveforms" doesn't do anything
It's a great feature, but it does nothing. What's worse is that Premiere is even more likely to show no waveforms as of CC2018.
This is particularly true for compressed formats (mp3 for example). I use mp3 a lot because that's what all the stock music websites use for watermarked previews.
Sometimes clearing all the media cache files fixes the blank waveforms, but not always. Either way, I've never clicked the Generate Waveforms button and had something happen.
Matt Stegner commented
Hi all, a couple things here from the Premiere audio "guy":
Correct, this does not re-generate waveforms, and never has. This command is solely for when you have "Preferences>Audio>Automatic audio waveform generation ..." turned off. The command will not re-generate or create waveforms for Multicam/Nests. The command does not grey unfortunately, and is not well documented that it has a narrow functionality.
"What's worse is that Premiere is even more likely to show no waveforms as of CC2018." If you can provide details so I can reproduce the issue I will file a bug to have it fixed. I've not seen this on my end.
"work with multicam sequences and if I have a adjust the audio in my sequence, it often makes the waveform disappear"
Premiere will only show audio for any nested sequence in narrow cases also (Multicam is a special type of nest). If there is no audio mixing happening on various tracks in the source, and no audio volume keyframes. Other than that the waveforms will be not shown in the nest. This is as designed and has worked this way, as far as I know, since the beginning of nests. It isn't ideal I agree, but it is not a bug as it functions as it was intended.
I agree with you all here with how it should work. Using the term bug is a tough one, cause this really ins't a bug (a bug is an untended or breakage of the or a deviation from the desired behavior of the code). I will interpret all votes here as converting this functionally to a new feature: Re-Generate waveforms.
Along with that, the missing waveforms on nest should be explicitly called out as a separate feature, and made available for votes.
Gregory Palanque commented
Same... I've never seen it work. I often work with multicam sequences and if I have a adjust the audio in my sequence, it often makes the waveform disappear. If that happens, it's over. Cleaning the cache doesn't work, moving it doesn't work, restarting Premiere/PC doesn't work. I even re-installed windows once to give it a try: even with a clean install of Windows 10 and Premiere and nothing else, it doesn't work.
How to reproduce:
1- Create multicam sequence with several audio tracks (like multi track audio recording)
2- Place this sequence on another sequence and do some camera switches
3- Go back to the multicam sequence and play with the audio clip level.
4- Return to master sequence.
5- If waveform is still visible, repeat step 3-4. Eventually the waveform will disappear
6- Select audio clip and click Clip > Generate audio waveform
7- Nothing happens
Phil D. commented
Bumping this because I'm still experiencing this issue. Selecting a clip in either the project window or the timeline and then selecting Generate Audio Waveform from the Clip menu doesn't do anything.