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Audio limiter wrong level adjustement
Hi there,
I’m experiencing some issues with the audio limiter inside the dynamics effect. I’m working on a large file (3,49 GB), at least for my standards, that has lot of clipping, so i decided to put a limiter on it. If I put the threshold on -6db everything seems to work correctly, with the peaks not ecceding the limiter. However after a while of playback the audio drops down. It is still audible, but the level drops down dramatically (it goes around -24 db to -18 db). The effect still marks the thresholds at -6db. if a disable the limiter the audio goes up again to his normal level (and clipping). I tried to apply the effect directly to the clip, then on the audio track and finally directly to the master track but the problem is still there. I tried to export the audio with the limiter but the level is still too low. Based on this I don’t think it is a playback problem.These are my specs:
Geforce GTX 770
Intel I7 4770 (3.40 ghz)
16 GB RAM
Mobo ASROCK Z87 PRO4I’ve found the same problem both on the CS6 and the CC 2014.
I really can’t understand if it is a bug, or am doing something wrong with the premiere settings. Thanks for your help. -
5 Replies
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I haven’t run into this problem with large files and the Dynamics processor. Try putting an edit every few minutes in the audio track, you may need to add a short dissolve between them. That way Premiere should see several clips instead of one big one and process each one separately. Also, render the audio from the Sequence drop-down menu.
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Thanks for the fast response!
Unfortunately I tried what you suggested but the problem remains. However I found a possible solution (or at least the reason why it bugs). The video is an interview shot with a lavalier microphone. There are two or three times where the interviewed coughs creating extreme noise and huge clipping peaks. It’s after the playback of these peaks that the limiter fails to correctly interpretate the remaining waveform, thus generating incorrect volume level. It’s like the gap between the clipping peak and the other peaks is too much to handle for the effect. Removing the effect and adding it again is enough to make it work, as far as I don’t playback the extreme peaks a second time. I’m still guessing how to avoid the problem apart from excluding the “cough peaks” from the timeline. -
[Michele Verardi] “the limiter fails to correctly interpretate the remaining waveform”
It sounds like your RELEASE setting may be too long.
I posted some serious details about the Dynamics effect at this link: https://forums.creativecow.net/readpost/205/879596
It’s wise also to select the entire audio track, RIGHT CLICK, and “remove effects.” The dynamics effect is applied to the track. You can also therefore, RIGHT CLICK, and choose “audio channels” and make each channel the same.
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I don’t know about CC 2014, but this has happened to me on Premiere Pro CS6, and the release setting was at 50ms. It does seem like a bug in the Dynamics/Limiter effect.
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I have the same problem with Premiere CC. No solution yet.
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