Question re: Audio pitch when transcoding from X to Y fps

Forum|Forum|6 years ago
December 3, 2019
2 replies
486 views

I need to transcode 2398 video to either 25p or 50i. I read somewhere that Premiere does a good job of adjusting audio pitch when stretching it, but I want to confirm -- Will I need to use Audition to adjust the audio pitch after transcode or does Premiere do that automatically now?

Secondly, do I just set up a sequence @ 25fps, drop in the 2398 footage, and tell it to keep sequence settings? Or do I use a sequence that matches the 2398 footage and export it to 25fps / 50i?

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M

Michael Grenadier

Legend

I've found that Audition does a much better job in terms of quality with tempo and pitch shifts than premiere... You can control click on the audio clip in the timeline in premiere and choose "edit clip in Adobe Audition" but of course you need the full cc suite.

S

Steve Griffiths

Inspiring

I've never used it for this but a quick play with Premiere Pro's 'pitch shifter' audio plug-in seems to work well on correcting pitch!

Sequence wise I would set up a 25fps (or 50i depending on your output requirements) and drop all your 23.98 video in.

You will of course get a 'repeated' frame for every second of playback. Particulary noticable on slow pans. One way to fix this is to apply 'speed/duration' change to problematic clips. Right click a clip in your sequence and select 'speed/ duration'.

Leave the speed setting at 100% but change 'Time Interpolation' to 'Optical Flow'. This generally does a good job of smoothing out the repeated frames and effectively 'standards converting' your 23.98 video to 25fps.

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