Audio desync ?!

[Francois Pénzes]

Hi Ivan

Can you post a Mediainfo on that 26.46 frame rate file ?

https://mediaarea.net/fr/MediaInfo/Download

That is one funky frame rate…

Cheers !

PC Win 10 Pro 64-bit 16gb Intel® Core™i7-2600k Quad Core 3.40GHz
Cameras: Canon XF305 + Canon XH-A1
Blackmagic HyperDeck Studio Mini
Vegas Pro 16, User since Vegas 3.0

\’\’When the cutting stops, the editing begins…\’\’

[Izzy Laif]

The video is probably in NTSC, which has a 29.97 frame rate, i.e. slightly less than 30 FPS. That means that on long runs, the audio and video desync is inevitable since audio files is at 30 “fps”.
Same for 59.98 NTSC and 60 FPS.
You have to adjust for that.

[Francois Pénzes]

Hi Izzy and Ivan

I do believe that Ivan’s problem lies with the fact that when he tries to match a 26.46 audio frame rate with a 29.97 video frame rate, there’s bound to be some de-synchronization. I’m guessing that when he recorded the Bulgarian version, the capture software was the culprit and recorded it at 26.46 fps. (You may want to see if your capture software can be set to a different frame rate). There are numerous capture software out there and many users are using playback apps like VLC or other that have built-in ”compensation” thus one can’t tell if the file is ”kosher”. Another add-on that creates numerous problem is the K-Lite pack.

That is why a Mediainfo readout can be useful in order to isolate the problem.

Cheers !

PC Win 10 Pro 64-bit 16gb Intel® Core™i7-2600k Quad Core 3.40GHz
Cameras: Canon XF305 + Canon XH-A1
Blackmagic HyperDeck Studio Mini
Vegas Pro 16, User since Vegas 3.0

\’\’When the cutting stops, the editing begins…\’\’

[Ivan Kaloqnov]

So now im trying to sync a new video.

We Bare Bears clip with my captured in bulgarian..

So first i tried to sync them..
Framerate were:
The English one: 23.97
The bulgarian one: 25.15

and the bulgarian is a little bit faster.
Like in the very begginning it was synced, then it slowly loses its sync.

Then tried converting the bulgarian one from 25.15 to 23.97 using handbrake.

Now im trying to sync them where the framerates were:
The english one: 23.97
the bulgarian one: 23.97

and.. again it’s the same thing.

IN THE VERY Beginning it is some sort of synced, and then slowly it loses its sync.

Also some more information.
i record them with bandicam, and always it gets different framerates everytime i record a show.
Maybe a gumball or we bare bears or spongebob. always is different.
But ALWAYS i can sync gumball whatever the framerates are.. But never any other show..
Now im sitting with two videos. One being my bulgarian and one being the english one of we bare bears
both of them 23.97 framerates. and the bulgarian is slowly losing the sync like the bulgarian its faster.
When im using the time stretch tool it works!!! in sony vegas when i use the time stretch it syncs perfectly. but then also the audio gets a litle bit weird and i don’t want that.
so what should i do…

mediainfo on the bulgarian one 23.97: https://prnt.sc/pciar0
mediainfo on the english one 23.97: https://prnt.sc/pcibd3

[Francois Pénzes]

Hi Ivan

I would start by using a different recording software. Something that will record at the same frame rate as the one you are trying to match. Things can go awry very fast when you start playing with frame rates. Conversion is one thing but it doesn’t always works. The best approach is to start with frame rate matching material.

Cheers !

PC Win 10 Pro 64-bit 16gb Intel® Core™i7-2600k Quad Core 3.40GHz
Cameras: Canon XF305 + Canon XH-A1
Blackmagic HyperDeck Studio Mini
Vegas Pro 16, User since Vegas 3.0

\’\’When the cutting stops, the editing begins…\’\’