VS X6 audio sync

[lata]

Hi Weaver

Well whatever approach you are taking now seems to be working, so that has to be an improvement.

You have provided a few images of your video files properties, I am getting a little confused in identifying the original video files properties. Can you do a screen shot of the original file before any rendering/conversion.

Whichever type you choose to render to the length of the new video should be same as the original.
However you must render to the same frame rate, and set the project properties to use that frame rate. The timeline will then display the correct number of frames for that video.
I suspect the issue may be associated with 50P and 25fps
So if the originals are using 50P then “enable 60p/50p editing” via Settings. This option will remain set until you change it (Video Studio X6)


Mts/M2t or Mpeg

HD files for a Bluray or Avchd disc it has to use the extension M2T. They will also use H264 as the compression type
HDV types use the Mpeg2 compression.
So rendering to Share Create video File – Bluray or Avchd will create a m2t type.
If you chose HDV that would create an Mpeg.

All types will use 1920 x 1080, however the maximum bit rate/ Data Rate will be different to hopefully comply to the industries standards.

[weaver]

Hi Trevor


Thank you for your time and attentiom. I already told that I do not use 50p formas at all.
All my videos are either AVCHD 50i or HDV 1440x1080 50i. Only interlaced!

In one of my former inserts you can see the format of the original clips. (Practically there are the same as in the m2t insert above.)

Yesterday during all my experiments I have got the correct length and interestingly the same original created no troubles ( in any format - I tried all predefined HD and HDV formats). The same cut, what caused last time the first problem was yesterday OK. The only difference against the last video was the overall length ( 7 vs 2 minutes).
Also the downconversion to SD was correct ( in one case I experienced one frame difference 3036 vr 3037 probably caused by the half frame shift).

With the MPG format i am also confused. I know in the past 10 years I used HDV cameras and frmats with streched pixels, their stream was mpg but instead of 1920 just 1440 streched pixes in the line. Exactly this is confusing because my original china3.mpg video has the full format (1920 pixels, no HDV ) and not the m2t extension , but mpg.

Anyway I learned again something new.

[erdna]

From version 4 on, Corel changed the mpg extensions to the correct ones (m2t). And maybe alsio produced tranport stream files ("t" stands for transport stream) but don't be confused: from the moment mpeg was born, extensions were one big chaos. e.g. AVCHD is H264 (=mpeg4 flavor)but still uses the mpeg2 container (wrapper), so it's stilll m2t, not m4ts. Another example: Sony's proprietary codec for XDCAM EX has am mp4 extension, but usess an mpeg2 compressor for the compressed video files.

[weaver]

From version 4 on, Corel changed the mpg extensions to the correct ones (m2t). And maybe alsio produced tranport stream files ("t" stands for transport stream) but don't be confused: from the moment mpeg was born, extensions were one big chaos. e.g. AVCHD is H264 (=mpeg4 flavor)but still uses the mpeg2 container (wrapper), so it's stilll m2t, not m4ts. Another example: Sony's proprietary codec for XDCAM EX has am mp4 extension, but usess an mpeg2 compressor for the compressed video files.

Thanks, unfortunately I am also aware of this chaos ( my job is closely connected with mpeg).

Meanwhile I found out also the reason. This video was rendered to HD on the old x4.