Converting MPEG1 (MPG) to MP4 using EDIUS 9.31

[tingsern]

Hello,

I have some old video clips which are currently in MPG, M2P, and DAT format. They are all Standard Definition or worse (352 * 288 or 720 * 576) - PAL standard (25 frames per second). Audio is 44.1 khz, stereo.

When I load them into EDIUS and play the video, it plays just fine - and the sound is fine too.

I converted them to MP4 using MAIN profile at 500,000 bps (Constant bit rate) and AAC at 128 bps (hardware encoder). When I play back the MP4 file - the video is perfect .... no issue - but the audio shutters - every 3 to 4 seconds, the sound breaks.

I specified the audio to be 44.1 khz (instead of the standard 48 khz).

Any idea how to fix this problem?

Thank you.

[antonsvideo]

if the project setting is 48k, export audio as 48k

with EDIUS9 you get better mp4 quality if you disable quicksync

export is fast without quicksync

[tingsern]

I have to go back home and try it again - it's the audio that is causing problems - not the video.

[antonsvideo]

I have to go back home and try it again - it's the audio that is causing problems - not the video.

I know, that is why I suggested 48k all the way

44.1k is for Music CDs and apples

[tingsern]

I don't know if putting the audio at 48Khz will solve the dropout issue - i have to test it out ....

[tingsern]

No good - even at 48Khz (project setting) - the audio dropout is still there ...

I am enclosing my footage for you to test and let me know how to convert mpg to mp4. As I said - the video quality is "bad" to begin with - so I am not asking for the stars :-). I just convert the video to 720 x 576 pixel resolution at 25 frames per second. I am more concerned about the audio.

Thank you

This is the original -

https://drive.google.com/file/d/1ecADFfO0hcvO9oNXCeTBggEExoHMWefm/view?usp=sharing

I merely convert the first 1 minute of that footage to MP4 - and you can hear the problem. That's the output after conversion.

https://drive.google.com/file/d/16vHRZVQjWja2SvE89st62RlvfC0-7DsH/view?usp=sharing

[BernH]

No good - even at 48Khz (project setting) - the audio dropout is still there ...

I am enclosing my footage for you to test and let me know how to convert mpg to mp4. As I said - the video quality is "bad" to begin with - so I am not asking for the stars :-). I just convert the video to 720 x 576 pixel resolution at 25 frames per second. I am more concerned about the audio.

Thank you

This is the original -

https://drive.google.com/file/d/1ecADFfO0hcvO9oNXCeTBggEExoHMWefm/view?usp=sharing

I merely convert the first 1 minute of that footage to MP4 - and you can hear the problem. That's the output after conversion.

https://drive.google.com/file/d/16vH...ew?usp=sharing

Maybe if you strip the audio out to a wav file and place that on the timeline replacing the embedded audio it would work.

Since Edius seems to be having problems with the audio, maybe try using ffmpeg or xmedia recode to make the wav file.

[tingsern]

Sorry guys for the false alarm - I just realised the problem is not the converted video .... it is the VLC video player .... it won't play the original MPG file - nor the converted file properly .... But - when I load both of them into EDIUS - both plays nicely. Looks like I have to look for a video player that handles MPG files nicely. Sigh ....

[tingsern]

Gotcha - Media Player Classic handles the MPG and the converted MP4 without any problems. Problem closed.

Thank you for keeping you folks awake :-).

[tingsern]

Anton,

Oh mine :-). EDIUS 9 exporter without Hardware Encoder is way much faster ... on the P72 - 28 minutes video is converted in 1 minute 20 seconds :-). I am surprised.

[tingsern]

MPG to MP4 is fine. No audio skipping. But, unfortunately, m2p to MP4 - I still get audio skipping problem. Very funny.

I am playing the video using Media Player Classic.

The M2P video itself is fine - no audio skipping.

If I play both files in EDIUS (original and converted) - both are fine. Seems that I need to find a player that can handle MPEG1 and MPEG2 audio .... I am at a loss :-(

[LewS]

Try VLC Media Player.

[tingsern]

No sir - that's was the player that gave me problems - that's why i went to Media player classic.

Very strange. I have to do some more experiments then.

[tingsern]

It's getting more bizarre :-). If I play the video that has audio skipping problem on the P72 using VLC player on my W540 (using the same version as on the P72) - it plays perfectly ..... no skipping.

The W540 uses a USB2 audio interface (Focusrite Scarlett 2i2) whereas the P72 is using the Thunderbolt 3 interface - UAD Arrow. I have to ask UAD folks how to diagnose this funny issue.

[DigitalDave]

Search on Google for VLC stutter and look at various preferences tweaks.
Had something odd a few years ago which was a couple of preference tweaks.