Hi Patty,

Slowing down perhaps five times or more is bound to produce choppy video. Perhaps you could interpolate perfectly to achieve smooth movement but not at the PowerDirector price level. If perfectly continual slow motion video was easy/feasible to render, nobody would need high speed cameras. You would need just two frames to recreate any single linear movemet, one frame at the movement's beginning and one at its end. Be reasonable…

Jirka

I've shot at 60fps and I understand that slowing down to .10 speed (in PD13 at least) produces a scene that exhibits some 'gitter' - a fluttering of the video appearance.

I've been using a GoPro and I think I can shoot at 120fps but then the resolution is down to 720p. I'll have to try that out and see if the sacrifice in resolution is worth the increased frame rate. Here's hoping the subsequent GoPro cameras get ever increasing frame rates at higher resolutions!

What frame rate is your original video clips? I think the higher the frame rate will result in more of the ability to slow down the speed with less 'gitter'.

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Prodad, a Cyberlink partner, has a wonderful speed utility. Although it does not plugin to PD, it is very effective as a standalone. Look for ReSpeedr. HP Envy Phoenix/4thGen i7-4770(4@3.4GHz~turbo>3.9)
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Quote Hi Patty,

Slowing down perhaps five times or more is bound to produce choppy video. Perhaps you could interpolate perfectly to achieve smooth movement but not at the PowerDirector price level. If perfectly continual slow motion video was easy/feasible to render, nobody would need high speed cameras. You would need just two frames to recreate any single linear movemet, one frame at the movement's beginning and one at its end. Be reasonable…

Jirka

If thats the case then why when googling for the same question as the OP I.e how to make smooth slow motion videos

I got premiere pro youtube video and there's literally special affect add-ons to fix stuttering of slowmo videos eg by clicking "time interpolation" then select affect time "optical flow" it reduced and limited any stuttering. Meaning it IS possible, what you said its like people saying "you need multiple speakers to get surround sound" otherwise anyone can get two speakers only and achieve the surround sound effect. Funnily but Dolby invented Dolby atmos and all you need a stereo headphones

Quote


If thats the case then why when googling for the same question as the OP I.e how to make smooth slow motion videos

I got premiere pro youtube video and there's literally special affect add-ons to fix stuttering of slowmo videos eg by clicking "time interpolation" then select affect time "optical flow" it reduced and limited any stuttering. Meaning it IS possible, what you said its like people saying "you need multiple speakers to get surround sound" otherwise anyone can get two speakers only and achieve the surround sound effect. Funnily but Dolby invented Dolby atmos and all you need a stereo headphones

Hey, astroASMR,
Unless we talk specific quantities, we could haggle for hours. Things are relative, for sure. Also, there is technical progress, so if I mentioned five-strong slowdown then (in 2016), the same could apply to slowing videos down ten times now (in 2023). One principle stays though: you get what you pay for. Just don’t ignore my price level remark.
By the way, I stopped updating my PowerDirector at version 15. I simply don’t need more or better features for the money CyberLink have been asking for the product, so I can’t tell what PowerDirector is capable of these days.
Please, don’t mix apples and pears. Since there are two ears only (in an individual), you indeed only need two audio channels to achieve any spatial effects if you know how. Nothing in common with slowing down videos! I recall that, back in the 20th century, some stereo recordings were made using a sort of mannequin head made to mimic a human one to achieve just that: naturally spatial audio tracks. I expect that now businesses involved will claim using artificial intelligence as a transition from smart technologies in their marketing jargon.
Regards…
Jirka

Many things have changed in later versions of PD like in the 365. If your camera frame rate is high and the shutter speed is high, then 10X slow motion is possible with the audio pitch maintained. The individual frames must be sharp and interpolation technology (generate an in-between frame) is possible for this to work.