Hi,

I looked at the video and it looks fine to me. Where is the stuttering that you are referring to?

@browj2

I see the first what I assume to be a "stutter" about 10 seconds in.

Jeff

@emmrecs

I saw that too, but assumed that it was intended as it goes well with the music.

John

@browj2

Indeed. We really need the OP to return and "update" us.

Original post edited....

Hi

Thanks for the information.

You do not have to edit your original post - just comment again with the new information - this way it keeps the thread continuity.

. . . . the rendered file is a MP4:

MPEG4 Export (MP4):
Video: 1280x720 ; 25.00 Frames/s; H.264 2000 kbit/s
Audio: 44100 Hz; Stereo;  AAC
Size estimate: 18422 kByte . . . .

Is there a reason why the bitrate of 2000 kbits/s is so low?

In my experience this is too low for the degree of fast panning, and movement etc, to achieve a smooth playback.

Try increasing the bitrate to 4000 kbits/s - as per Facebooks recommendation here.

HTH

John EB

Thank you for all your answers.....

Just to show you how the clip should look like when it is uploaded to youtube directly (raw):

I changed the bitrate as recommended above and it did not make any difference.

the issue really happens when file is dropped on the time line: on preview and when it is rendered.

Hi

After reviewing your post and the responses to comments made there are some confusing points tht need clarfying:

Can you confirm that you are running an i7 700 processor, which is a mobile processor for laptops, or is it a typing error?

. . . . Just to show you how the clip should look like when it is uploaded to youtube directly (raw) . . . .

I can see some stuttering or image stabilisation effect in the last few seconds of the video you put on Youtube

Youtube will convert your video - to see how it should look like we need to see the original source video clip and the exported clip without any conversion taking place, ie upload to Dropbox and provide the links.

What were the settings you used for exporting the video before uploading to Youtube ?

. . . . the issue really happens when file is dropped on the time line: on preview . . . .

As already commented on, this is a common problem, especially if you are running an i7-700 mobile processor

and when it is rendered . . . .

I presume you mean once you have exported the video to mp4, you still see the stuttering - is this correct? Or do you mean when you rendered the timeline using the Render option?

John EB

That s my Computer config:

https://snag.gy/UZCA2e.jpg

this below the file info:

General
Complete name                            : D:\Videos\Supercar City\2017\04-APR\2017-04-27-purerally\20170428_101819.mp4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42
File size                                : 21.0 MiB
Duration                                 : 6s 208ms
Overall bit rate                         : 28.3 Mbps
Encoded date                             : UTC 2017-04-28 09:18:26
Tagged date                              : UTC 2017-04-28 09:18:26
©xyz                                     : +51.5412-000.2778/
com.android.version                      : 6.0.1

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.2
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 1 frame
Format settings, GOP                     : M=1, N=60
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 6s 182ms
Bit rate                                 : 28.2 Mbps
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                       : 59.328 fps
Maximum frame rate                       : 60.729 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.226
Stream size                              : 20.8 MiB (99%)
Title                                    : VideoHandle
Language                                 : English
Encoded date                             : UTC 2017-04-28 09:18:26
Tagged date                              : UTC 2017-04-28 09:18:26
mdhd_Duration                            : 6182

Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 6s 208ms
Source duration                          : 6s 211ms
Source_Duration_FirstFrame               : 3ms
Bit rate mode                            : Constant
Bit rate                                 : 256 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Stream size                              : 194 KiB (1%)
Source stream size                       : 194 KiB (1%)
Title                                    : SoundHandle
Language                                 : English
Encoded date                             : UTC 2017-04-28 09:18:26
Tagged date                              : UTC 2017-04-28 09:18:26
mdhd_Duration                            : 6208

I can see the stuttering on the preview and on the exported video file

Hi.

Thank you for the additional information and the screenshot. However, you should have obscured the Windows product ID since this is exclusive to your computer and should not be made public. Please remove, amend and then re-post that image.

Two things strike me from the information you've supplied:

Movie edit pro 16 Plus HD

This is rather an old version of MEP. I wonder whether it cannot easily handle the data stream size you are creating? (I note the MediaInfo list shows the overall bit rate as being 28.3mbps.)

the 2 clips are made of 2 mp4 file sped up to 60 frames per sec

How are you creating these speeded up files? Simply by using the speed control within MEP, or by some other external convertor? Were the original files also mp4 or, again, have they undergone some prior conversion process?

Jeff

Hi

Thanks for the information.

As I suspected - the video has been converted by Youtube - this is the MediaInfo data for the video as downloaded from YT - the differences are emboldened

General
Complete name                            : C:\Users\xxxxxxx\Downloads\20170428 101819 - DASH.mp4
Format                                   : dash
Codec ID                                 : dash (iso6/avc1/mp41)
File size                                : 4.27 MiB
Duration                                 : 6 s 183 ms
Overall bit rate                         : 5 799 kb/s
Encoded date                             : UTC 2017-06-03 09:02:37
Tagged date                              : UTC 2017-06-03 09:02:37

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.2
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 2 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 6 s 183 ms
Bit rate                                 : 5 792 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 60.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.047
Stream size                              : 4.27 MiB (100%)
Encoded date                             : UTC 2017-06-03 09:02:37
Tagged date                              : UTC 2017-06-03 09:02:37
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

As you can see there are significant differences to your mp4 data, which makes comparison difficult because we are not seeing like for like, the YT video having a significantly lower bitrate and different codec.

Similarly the Facebook video is 720p with a low video bitrate of 1372 kbps - MEP's optimised export for web 720p is 3800 kbps.

As I have said previously, we need the original source video clip and an exported mp4 version, using the same settings as you have posted, that shows the problem, for comparison and testing to see if we can replicate what you are seeing.

HTH

John EB

It looks like that the problem are only limited to the footage that were filmed with a Samsung S6

I had previously problems when I used such files in Vegas and solved the latter using Tencoder ( in the present case there is no effect).

Here are 3 files uploaded to my onedrive (the one I submitted and 2 others)

https://1drv.ms/f/s!AtUN_JYndEj1hsojOEyOP4d500OBWA

There is no stuttering.... I even uploaded to YT (no problem) and downloaded the files again: They are still stuttering when files are dropped on the time line (when they play slowly then skip a few second backward).

Still Any idea?

Hi. Thanks for the uploaded files.

I dropped all three on to a MEP Premium timeline and all played without problem; no stutters, glitches etc. One clip seemed to be at a different frame rate to the other two but MEP handled it with no difficulty.

Not sure where that gets us!

I'll do an Export of them in a few minutes and post it.

Jeff

EDIT: the exported file is at https://my.pcloud.com/publink/show?code=XZEPt3ZNIFr9vbk1nhnwy9cmIJpcXy6n33y I'll delete it once I know you've got it.

2nd EDIT: having reviewed again this whole thread I still wonder whether the problem is being caused by the fact you are running a comparatively "old" version of MEP. My test was done with MEP Premium version 16.0 3. 66. Notice that is NOT MEP 16 but the latest "365" one.

@Zaza_from_Johor

I checked this with VPX. No stuttering. I noticed that your audio output is 44 kHz. Mine defaults to 48 kHz, which it should but does not always do this for some strange reason.

Just to confirm, Are you using MEP 16 or 2016? If 16, then is it compatible with W10? It is quite old.

Also, are your program settings the same as the export? I set mine to be the same as the export.

@browj2

OP says himself in the edited version of the thread-starter, he is running Movie edit pro 16 Plus HD

Jeff

Hi Jeff,

Yes, but I wanted to be sure. I see in the OP's other thread that the version is definitely 16, and John EB notes that it is not compatible with W10, which may be the source of the problem.

There is a new version of MEP out today with all of the goodies thrown in. I suggest that Zaza try it out - go for the Premium version.