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Vegas Pro Preview freezing

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liam brooks
Vegas Pro Preview freezing
on Jan 16, 2017 at 4:05:46 pm

basically I am working on a video but my Vegas is been stupid, every time i add a different clip it lags as it switches to it yet when i first load sony vegas and play it from the start its fine.... only after it's played once it has this problem on the preview screen. Also media manager is OFF
To understand me more I recorded the problem




any help appreciated


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Aaron Star
Re: Vegas Pro Preview freezing
on Jan 16, 2017 at 5:55:17 pm

You need to provide more info so the community can help you.

  • Specs on your computer, CPU, RAM, GPU...
  • utility being used to capture game footage, and format you are capturing to.
  • "media info" on the captured media.
  • Project settings in Vegas.
  • Desired rendered output / Vegas Render As template
  • Preferences settings in Vegas.


Seriously this request should be a sticky on the forum to guide people on how to post for help.


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liam brooks
Re: Vegas Pro Preview freezing
on Jan 16, 2017 at 7:01:54 pm

Specs:
Windows 10 64bit
Intel 6600k OC to 4.1ghz
GPU : GTX 960
RAM : 4G

Recorded with OBS at 1080 60FPS to MP4
Project settings : https://gyazo.com/1c236614e718c5f60fc59afeace85fb3
Out put settings: https://gyazo.com/db7019830380e9dc2c8d87c134b161a6
Vegas preferences: https://gyazo.com/19d4e7ad0294d6b209345c5d8abb6403

Anything else?


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Aaron Star
Re: Vegas Pro Preview freezing
on Jan 16, 2017 at 7:37:17 pm

Under OBS -> Settings -> Advanced - is the CFR (constant frame rate) checked?

Download a copy of "Media Info" and verify the OBS encoded media is being encoded to a constant frame rate of 60 or 59.94 FPS.

Try the results of using the x264 encoder vs using quicksync or NVENC.

Try disabling smart resampling for media clips on the timeline.

Try Xsplit Broadcaster, as OBS fails to encode to a "video standard" Below is a media info output on an xsplit file:

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 23s 12ms
Duration_FirstFrame : -21ms
Bit rate : 113 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps



Vegas is a Video editor that likes encoded source material that conforms to video standards in the TV and Film industries. The video standard in your use case would be 1920x1080x59.94P FPS, or 3840x2160x59.94P FPS. A straight 60FPS should work too, but Media Info results similar to 58.465 to 60.366 will cause playback issues in Vegas.


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Aaron Star
Re: Vegas Pro Preview freezing
on Jan 16, 2017 at 7:40:54 pm

This is also same problem with some video from smart phones as well.


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liam brooks
Re: Vegas Pro Preview freezing
on Jan 16, 2017 at 8:03:42 pm

Ok thanks for the reply I will try what you said


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