V20.02 BETA is now available to test

Announcement
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This cannot be fixed. Preview scaling is inherently inaccurate.

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This is fixed for the release.

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@DRM have you had a chance to download a nightly build and test this?

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16) The new behavior of zooming in on the timeline with the mouse wheel is not accurate when trying to zoom in on clips that are on the right side of the timeline. Despite aiming it with the mouse, the zoom in doesn’t stay to where you are aiming the father right you go on the timeline. In this demo, I test the first 3 clips on the timeline showing that the new behavior works. But then I try this with the last two clips on the timeline showing that the zoom in doesn’t work and is very inaccurate.

Yes. The sync issue and audio clicking seems to have been fixed but the sound that is being produced with the Pitch filter comes across as echoey and maybe a little scratchy. I did a demo where I compare this to the youtube speed up feature. On youtube, when you speed up the playback it automatically adjusts the pitch. I sped up the clip from Tears of Steel 2x on both the youtube playback then show the same in Shotcut: https://streamable.com/s5mz8

You can hear that the youtube 2x speed + pitch audio quality is clean while in Shotcut it sounds like there is a bit of an echo.

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I noticed 2 problems. I showed them by video.
Problem 2 is not very important.

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16 ) The new behavior of zooming in on the timeline with the mouse wheel is not accurate when trying to zoom in on clips that are on the right side of the timeline.

This primarily happens when when the timeline contents does not fill the window because it is unable to scroll the left edge negative. I have not found a way fix this.

the sound that is being produced with the Pitch filter comes across as echoey and maybe a little scratchy.

As far as I have determined, this is as good as the library provides and will not be addressed.

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  1. The timeline has a minimum height. This has not changed in this version, but I will reduce it some because it is trivial. But not such that it hides the toolbar or V1 at its minimum height. Also, you can close the panel if you need more space temporarily.

  2. The first text column in the jobs panel does not always expand to fill the space. This is fixed for the release.

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If the best it can do is subpar quality then should it really be included?

In any case:

17) The drag handles for Simple Keyframes in the Pitch filter are missing.

18) If you have the keyframes window open and try to change the name of a clip on the timeline, it won’t update the name of the clip in the keyframes window. Demo.

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I expect this to be improved when the “Pitch Compensation” feature is implemented for the speed feature. With pitch being done in a separate filter, it goes through a resampler where half of the data is thrown away before the pitch filter is applied. So stay tuned for future improvements to that.

Also, to Dan’s point, we are using a FOSS pitch changing library. It may not be as good as a proprietary library that YouTube might be using.

I had disabled simple keyframes for the pitch filter. Doesn’t really seem like a use case to me.

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Anytime we offer keyframes we should try to offer simple keyframes. The use case is simple: it is simpler. It is very easy to enable these. I did and did some testing, and it is working fine.

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This is fixed.