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Best settings to convert 1080-60i AVCHD to .mp4

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Mark Goetze
Best settings to convert 1080-60i AVCHD to .mp4
on Nov 26, 2015 at 7:46:57 pm

Hi everyone,
I’d like to get people’s advice on the best settings to convert AVCHD 60i video to .mp4 format using Sony Movie Studio ( or Sony Vegas).

Here is what I am trying to do:
I have a Sony HDR-S11 camcorder and am using Sony Movie Studio Platinum 13. I have a large number of videos that are shot in 1920x1080 60i. I want to convert these videos to .MP4 format while maintaining the highest possible video quality.

After doing some research online I believe these are the best settings in Vegas / Movie Studio to convert 1080-60i AVCHD to 1080-30p MP4:

New Project Settings
Region: America 60Hz / NTSC
Video: AVCHD > 1920x1080-60i
* Or I just match source media.

Set Project Properties (Video Tab)
Template: HD 1080-60i (1920x1080, 29.970 fps)
Field Order: Upper Field first
Full-resolution rendering quality: Best
Deinterlaced method: Interpolate fields

Make Movie Settings (Render) – Custom Template
Formats: Sony AVC/MVC
Custom Templates based on Internet 1920x1080-30p (.mp4)
- video format: AVC
- frame size: High Definition (1920x1080)
- profile: high
- entropy coding: CABAC
- frame rate: 29.970 (NTSC)
- Allow source to adjust frame rate (this box is checked)
- field order: None (progressive scan)
- pixel aspect: 1.0000
- bit rate (bps): 16,000,000
- number of slices: 1
- encode mode: automatic
- Enable progressive download (this box is checked)

Here is the problem:
When I use the settings above the playback quality is decent, HOWEVER, there are noticeable stutters or jumps in the video as it is playing. It’s not a constant stutter, but rather it seems to skip a few frames every 4, maybe 5 seconds. Also, the picture does not look nearly as crisp as the original, which is a smaller issue but worth mentioning. When I play the unedited .m2ts video is it smooth and fluid (although there are some noticeable interlace lines in select scenes).

Any suggestions on my settings or any other methods for converting 1080-60i .m3ts to .mp4?

Thank you,

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Jackie Luffy
Re: Best settings to convert 1080-60i AVCHD to .mp4
on Nov 27, 2015 at 4:58:13 am

I would recommend trying out a program called "WinFF" You can drag and drop all of your clips in at the same time and type in each detail you want, bitrate, frame rate, frame size, everything!

I haven't used it in awhile but I remember the results were the best I've seen out of anything I've used for converting AVCHD to MP4

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John Rofrano
Re: Best settings to convert 1080-60i AVCHD to .mp4
on Nov 27, 2015 at 4:16:25 pm

[Mark Goetze] "Deinterlaced method: Interpolate fields"
This may be your problem. Interpolate Fields throws away half of your vertical resolution which is why it doesn't look as good. You should use Blend Fields unless you have really fast moving objects that it can't deinterlace with this method.


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Mark Goetze
Re: Best settings to convert 1080-60i AVCHD to .mp4
on Nov 27, 2015 at 7:42:43 pm

Hi John,
I created two youtube videos so you can see the difference between Blend and Interpolate deinterlace methods. To my eye it seems as if the Interpolate method produces a sharper video with no real noticeable quality reduction. Blend seems to create quite a bit of motion blur so it simply looks less sharp. Please let me know what you think. Also, what do you think about the quality of these videos - do you see any of the frame skipping I mentioned?



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John Rofrano
Re: Best settings to convert 1080-60i AVCHD to .mp4
on Nov 28, 2015 at 12:01:23 am

Yes, if you have a lot of fast motion (and you have) Interpolate will give you shaper quality as you have seen. I especially watched the Interpolate video and didn't see any frame skipping. It looks great! I don't see ay problems with it.


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