Poor Video performance in demanding sessions

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aptmusic9
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Poor Video performance in demanding sessions

Post by aptmusic9 » Sun Jan 21, 2018 12:25 am

Is anyone experiencing laggy video performance and stuttering while using demanding sessions? I'm playing back a full size Apple ProRes file, which SB claims is the best file type for video performance. Even if I use a 2nd instance of cubase as a video slave, it still stutters. Wondering if ProTools as a slave would perform better.
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Bill_T
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Re: Poor Video performance in demanding sessions

Post by Bill_T » Sun Jan 21, 2018 2:37 am

Can't help a lot, but I'm setting up a film project now. I noticed in the Task Manager that for workprints downsized with DaVinci Resolve, a 1080 DNX file loads down Cubase about 10 to 15% (and sometimes much more), whereas a DaVinci-defined 'Youtube 720p" H264 file hovers just under 1%, maybe 2% max peaks. "Vimeo 720" is in between those 2. That's on my generation one i7-960 system. Any one of those formats flows nicely for me with about 20 tracks of Play 6 and Kontakt, with a total CPU load around 35% at times. I can see the difference in image quality, but the H264 quality is more than OK and nice to look at. I've got a 4gb Nvidia 760 series card, X58 motherboard. It's a 29.97 project, haven't checked 23.976.

I think the bottom line is that video and audio compete for similar resources that vary somewhat with video format and the particular sub-version thereof, it's more than just a muscle power thing.

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Re: Poor Video performance in demanding sessions

Post by SuperG » Sun Jan 21, 2018 7:18 am

The thing to remember is to use a lower resolution proxy video for scoring purposes. You can mate up the score audio to the master video in your video editor at a later time.
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Re: Poor Video performance in demanding sessions

Post by Haavard » Fri Feb 09, 2018 4:15 pm

I have just imported a 1080 H.264 .mov file into a so far pretty lightweight project. 6 - 7 tracks of EW Play and some HALion tracks.

And the performance is awful. Unusable. It plays for about 3 seconds, then a stutter turns into a freeze.
No audio glitches. Increasing latency doesn't help.

The funny thing is, I can run MPC or another program playing the exact same video file SMOOTHLY while CUbase is playing back my project. This is exasperating!

(Some specs: i7 920 (1st gen), 16 gb ram, Nvidia GT740. Latest Cubase Pro 9.5, latest HALion, latest EW Play)
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aptmusic9
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Re: Poor Video performance in demanding sessions

Post by aptmusic9 » Wed May 16, 2018 11:59 pm

Haavard wrote:
Fri Feb 09, 2018 4:15 pm
I have just imported a 1080 H.264 .mov file into a so far pretty lightweight project. 6 - 7 tracks of EW Play and some HALion tracks.

And the performance is awful. Unusable. It plays for about 3 seconds, then a stutter turns into a freeze.
No audio glitches. Increasing latency doesn't help.

The funny thing is, I can run MPC or another program playing the exact same video file SMOOTHLY while CUbase is playing back my project. This is exasperating!

(Some specs: i7 920 (1st gen), 16 gb ram, Nvidia GT740. Latest Cubase Pro 9.5, latest HALion, latest EW Play)
So glad its not just me. I have a session of a film I scored about 2 years ago with earlier versions of Cubase. When I open this session in Cubase 9.5 the video just freezes and ASIO meter is through the roof (still plays back fine, but yikes...)
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User of Cubase since Cubase 5.0
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-steve-
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Re: Poor Video performance in demanding sessions

Post by -steve- » Thu May 17, 2018 6:56 pm

The new video engine isn't really comparable to the old. But it is possible to convert videos to a format that is 'lighter' for Cubase.

Check out this app written by Nuendo users for this purpose: https://audiospot.audio/audiospot-creativetools
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Re: Poor Video performance in demanding sessions

Post by Oliver.Lucas » Fri May 18, 2018 11:05 am

avoid long gop formats. use dnxhd36 or prores proxy
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Stephen57
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Re: Poor Video performance in demanding sessions

Post by Stephen57 » Fri May 18, 2018 5:36 pm

Bill_T wrote:
Sun Jan 21, 2018 2:37 am
Can't help a lot, but I'm setting up a film project now. I noticed in the Task Manager that for workprints downsized with DaVinci Resolve, a 1080 DNX file loads down Cubase about 10 to 15% (and sometimes much more), whereas a DaVinci-defined 'Youtube 720p" H264 file hovers just under 1%, maybe 2% max peaks. "Vimeo 720" is in between those 2. That's on my generation one i7-960 system. Any one of those formats flows nicely for me with about 20 tracks of Play 6 and Kontakt, with a total CPU load around 35% at times. I can see the difference in image quality, but the H264 quality is more than OK and nice to look at. I've got a 4gb Nvidia 760 series card, X58 motherboard. It's a 29.97 project, haven't checked 23.976.

I think the bottom line is that video and audio compete for similar resources that vary somewhat with video format and the particular sub-version thereof, it's more than just a muscle power thing.
Great post. Thanks for sharing the tips and ideas.
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Re: Poor Video performance in demanding sessions

Post by -steve- » Fri May 18, 2018 6:07 pm

Oliver.Lucas wrote:
Fri May 18, 2018 11:05 am
avoid long gop formats. use dnxhd36 or prores proxy
Yes, this. There's no need for guesswork. Prores Proxy is free, too.
First step when something goes haywire: Safe-Start Mode
Cubase Pro and Nuendo, latest versions available. | Windows Pro 10
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