@Bazim if you are not familiar, download the free app Mediainfo. Start the program, select the 'View' tab, scroll down and select 'Text' mode. Then select the 'File' tab and navigate to your source media files and load one of them. Then post a screenshot of that report. The report from Mediainfo provides a bunch of information that will help members understand what you have and make a better suggestion.
In addition also post screenshots of your Project settings, and as @j-v request, a screenshot of your Preview window and the area around it, so members can determine how your Preview quality is setup. All of this will help others help you.
Also if you can post the specs of your computer, CPU, GPU, memory, drives, etc.
@Bazim Are your source files actually 60p or 59.940p? Are they variable frame rate, or constant frame rate? What codec was used to encode? All these things are reported by the Mediainfo app I suggested above, and may be important for members to help.
Are you saying your Project settings are matched to your source?
Preview Quality is displayed above the Preview window, it could be Draft, Good, Preview, Best and each of those have an option for Auto, Full, Half, and Quarter, which is yours set for?
How are you zooming in on the timeline? Is this is reference to using Pan & Crop or Track Motion? If not, what is it in reference to?
Constant Frame Rate. Preview settings doesn't matter. It lagging on every setting. Zooming with mouse wheel. When i make a proxy video the preview stop lagging, but when i add text and i get to the point of this text. Preview window starts to lag and starts to be fine after the text.
@Bazim Thank You for the information, but we are still information to be of any help. Can you post a screenshot of your source media using Mediainfo in text mode, a screenshot of your project properties, a screenshot of your Movie Studio full screen display. And what are you referring to above "10 GB ram usage"?
The behavior you describe is pretty typical of being on the edge of your CPU capabilities. Some systems just will not playback at full speed when encountering things on a track such as FX's, transitions, etc. For that you can use Dynamic Ram Preview or Selective PreRender (this being the better I think), to view areas on a track/timeline that lag in preview.
General Complete name : D:\Videa\OBS\my_best_game.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 76.8 GiB Duration : 1 h 55 min Overall bit rate mode : Variable Overall bit rate : 95.1 Mb/s Writing application : Lavf57.84.100
Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.2 Format settings : CABAC / 2 Ref Frames Format settings, CABAC : Yes Format settings, RefFrames : 2 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 1 h 55 min Bit rate mode : Variable Bit rate : 95.0 Mb/s Maximum bit rate : 40.0 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Variable Frame rate : 60.000 FPS Minimum frame rate : 58.824 FPS Maximum frame rate : 62.500 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.763 Stream size : 76.6 GiB (100%) Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.470 System B/G Codec configuration box : avcC
Audio ID : 2 Format : AAC LC Format/Info : Advanced Audio Codec Low Complexity Codec ID : mp4a-40-2 Duration : 1 h 55 min Bit rate mode : Constant Bit rate : 129 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 44.1 kHz Frame rate : 43.066 FPS (1024 SPF) Compression mode : Lossy Stream size : 106 MiB (0%) Default : Yes Alternate group : 1
I think this is giving you the troubles Vegas does not like variable framerates. Make your screenplay with steady contant framerate or use OBS, that one can give video where Vegas has no troubles with. This file you can better let go trough a videoconverter who makes constant framerate.
@Bazim you stated that your source was constant frame rate, but according to the source media specs you have posted (Thank You), it is variable frame rate. I don't use OBS, but I think it can be configured to record constant frame rate. You could use a program like Avidemux or Handbrake to convert the source media you already have recorded from VFR to CFR and see if that helps with you playback speed. I would start a fresh project to perform the test.
"10GB preview i set this in options", I assume by this you have changed the '200' Mb default in Preferences > Video tab 'Dynamic RAM preview max (MB):' to 10 Gb, if that is correct, increasing this for normal preview is not going to help. You can use an increase in this option that may help when you are doing Dynamic RAM previews, Tools > Build Dynamic RAM Preview (Ctrl+B), otherwise you are probably better off to return this to the default of 200 Mb.
Can you post the requested screenshot of your project properties, a screenshot of your Movie Studio full screen display?
@Bazim Thank You for posting the Project settings. I'm not familiar with OBS and I know it changes things around through various version, so maybe it does have CFR, although maybe the option is listed as VFR with a check box.
I would recommend downloading the free app Avidemux, converting one of your source media files into constant frame rate and see how that previews for you.
BTW.: In the OBS forum i found this : For some reason the media info for OBS MP4s (that I've seen anyways) is always variable, even if you recorded at constant. Its just metadata though, doesn't mean it really is variable. Have you tried the files anyways to see if they work?
And thats true. If i use medainfo of original FLV file it says CFR, but after remuxing it to MP4 it says VFR. So is really only a metadata.
Look at that video link. That is a constant frame rate video, but
It is not and you showed that. You showed not the framerate of your file but your projectsettings and your preview sees it mostly as a mediate, this time 59,999. Your mediainfo file shows that the framerate is not constant. To get that these are, I think, my most important settings to achieve that.
Choose above the best and fastest option you have (if)
That is not necessary true with all media. Mediainfo reports specs that are hard boiled by definition of the specific codec. Another example is CFR renders from Handbrake 59.940 h264/x264 which reads VFR in Mediainfo, but the reported min/max fame rate reports the same indicating it is CFR. So, I'm not so sure that Mediainfo is reporting your source incorrectly as it show a difference between the min/max frame rate.
However, regardless of that, if you convert your source using Avidemux with a constant frame rate template, then trying that in Movie Studio, you will for sure determine if it has any bearing on you preview speed, thereby improving your preview or eliminating that from your issue.
Because you dont remuxing it from FLV. In the video link i added this :
General Complete name : D:\Videa\Moje\Hotové\Apex Legends - Epizoda 3.mp4 Format : MPEG-4 Format profile : Base Media / Version 2 Codec ID : mp42 (isom/mp42) File size : 1.82 GiB Duration : 10 min 38 s Overall bit rate mode : Variable Overall bit rate : 24.4 Mb/s Encoded date : UTC 2019-03-11 20:51:53 Tagged date : UTC 2019-03-11 20:51:53
Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.2 Format settings : CABAC / 1 Ref Frames Format settings, CABAC : Yes Format settings, RefFrames : 1 frame Format settings, GOP : M=1, N=30 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 10 min 38 s Bit rate : 24.2 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 59.940 (60000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.194 Stream size : 1.80 GiB (99%) Language : English Encoded date : UTC 2019-03-11 20:51:59 Tagged date : UTC 2019-03-11 20:51:59 Codec configuration box : avcC
Audio ID : 2 Format : AAC LC Format/Info : Advanced Audio Codec Low Complexity Codec ID : mp4a-40-2 Duration : 10 min 38 s Bit rate mode : Variable Bit rate : 253 kb/s Maximum bit rate : 449 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Frame rate : 46.875 FPS (1024 SPF) Compression mode : Lossy Stream size : 19.3 MiB (1%) Language : English Encoded date : UTC 2019-03-11 20:51:59 Tagged date : UTC 2019-03-11 20:51:59
@Bazim I cannot determine which text you are using from the screenshot you provided, so I will ask, what text/title are you using when it slows down and how much does it slow down. Also, when you converted to the constant frame rate you posted, it is 59.940 fps, did you also match that in your project properties?
When Movie Studio is installed, the settings are pretty much optimized for most systems. I would perform full reset of Movie Studio. Hold down the 'Ctrl+Shift' keys and double left click on the Movie Studio desktop shortcut. That should pop-up a small window. Check the box 'Delete all cached application data', then left click on 'Yes'. This will reset Movie Studio to the installation default settings and delete the pesky cached application data that can sometimes cause Movie Studio to do strange things. If in the course of you attempting to get better playback settings were changed that may actually hurt that effort, this will set everything back to normal.
It may be that your system just isn't robust enough to run preview full speed when the play head goes through various FX's, transition, titles, etc. when processing 60p media. If that is the case you may want to consider converting your source material to Cineform intermediates, which usually will play easier than the typical h264 encoded material found in mp4 wrappers. Intermediate files are much larger than the OBS generated files, but sometimes that is the cost of get better playback speeds.