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Premiere Pro Audio Export
Hi guys,
I have not long switched from FCP7 to Prem Pro and have just completed my first little job. The audio had a bit of hiss in it, but I managed to get rid of most of it with the denoiser effect, however when I come to export the file to h.264 on the Vimeo 1080p preset the hiss comes back. Not all the way through, just intermittently.
This seems odd to me, but I am no expert, clearly!
Any advice on why this could be happening and how to get rid of it would be greatly appreciated.
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4 Replies
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The noise might be coming back if you encoded preview files that were created before the Denoiser effect was applied. If that is not the case, look for additional noise sources in the audio.
The best method is to view a frequency distribution to identify any unwanted noise. It is a little easier in Adobe Audition, if you have access. In Premiere Pro use the Spectral Noise Reduction effect to see the frequency distribution, even if you use a different effect to address the problem.
Apply the Spectral Noise Reduction effect, expand the Custom Setup section, and play the sequence to create a graph. Note the line just below 16kHz in the following example:
In this example the Spectral Noise Reduction effect was used to create a filter at 15700Hz:
Depending on your situation, you could also use a Notch or Lowpass audio effect to filter out the hiss.
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[Ivan Myles] “Apply the Spectral Noise Reduction effect, expand the Custom Setup section, and play the sequence to create a graph. Note the line just below 16kHz in the following example:”
There seem to be other lines, possibly an overtone sequence, at 5, 7, 8, 9 and 11 kHz. Can the Spectral Noise Reduction eliminate them all in one setting, or do you have to go after them one by one?
Herb Sevush
Zebra Productions
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nothin’ attached to nothin’
“Deciding the spine is the process of editing” F. Bieberkopf -
The Spectral Noise Reduction effect can filter three different frequencies. Apply multiple instances if there are more to be addressed.
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[Ivan Myles] “The Spectral Noise Reduction effect can filter three different frequencies. Apply multiple instances if there are more to be addressed.”
Thank you.
Herb Sevush
Zebra Productions
—————————
nothin’ attached to nothin’
“Deciding the spine is the process of editing” F. Bieberkopf
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