Render Size too Big

[VICC-TV]

I rendererd a video that was 3 hours long as an AVI. I used the preset AVI/ DV Type 2/Uncompressed PCM audio. It ended up being a 40GB file. What setting can I use to make the rendered file smaller without compromising the quality?

thanks in advance,

Abraham Lopez
VICC Church

[chribba]

I rendererd a video that was 3 hours long as an AVI. I used the preset AVI/ DV Type 2/Uncompressed PCM audio. It ended up being a 40GB file. What setting can I use to make the rendered file smaller without compromising the quality?

thanks in advance,

Abraham Lopez
VICC Church


That depends on what you say is quality loss or not.... Please tell what you are going to do with the video.

chribba

[bbeanan]

That would be like saying how can I take my $1 bill and turn it into $1 million with no effort or work....

Can't be done... ANYTIME you make the file size smaller you lose quaility. We will all need more details to give you any hints on how to cut it down.
One major problem you will run into is how long your program is. to get 3 hours onto a DVD you are going to take a MAJOR quaility hit.

[xpycm]

I rendererd a video that was 3 hours long as an AVI. I used the preset AVI/ DV Type 2/Uncompressed PCM audio. It ended up being a 40GB file. What setting can I use to make the rendered file smaller without compromising the quality?

thanks in advance,

Abraham Lopez
VICC Church

You can use NewTek SpeedHQ codec and save up to 20% of the file size not compromizing the quality at all... and also save time on rendering...

[SBowie]

SpeedHQ isn't any smaller than DV, so no additional space-saving to be found there, although the quality may be better at the same file size. (I don't think anyone has ever claimed SpeedHQ is lossless, however.)

[VICC-TV]

I rendererd a video that was 3 hours long as an AVI. I used the preset AVI/ DV Type 2/Uncompressed PCM audio. It ended up being a 40GB file. What setting can I use to make the rendered file smaller without compromising the quality? This is going to be a DVD showing on a projector for a giant background showing the life a famliy member. I made the DVD on a DVD+R DL using Ulead DVD Workshop SE. On Ulead I can hear audio but when I play it on a regular DVD player or my computer, there is no audio. I rendered the project from 4:30pm to 11:45pm.

Thanks in advance,

Abraham Lopez
VICC Church

[chribba]

I rendererd a video that was 3 hours long as an AVI. I used the preset AVI/ DV Type 2/Uncompressed PCM audio. It ended up being a 40GB file. What setting can I use to make the rendered file smaller without compromising the quality? This is going to be a DVD showing on a projector for a giant background showing the life a famliy member. I made the DVD on a DVD+R DL using Ulead DVD Workshop SE. On Ulead I can hear audio but when I play it on a regular DVD player or my computer, there is no audio. I rendered the project from 4:30pm to 11:45pm.

Thanks in advance,

Abraham Lopez
VICC Church


Ok, now we know you need DVD quality... Look at the Mpeg 2 settings in Speededit render panel. There you have presets to DVD but you can make your own if you need better quality.
I would not put 3 hours of video on a DVD as it is fits about 2 hours of DVD quality on them. Split the video to 2 DVD to keep DVD quality.

chribba

[xpycm]

Ok, now we know you need DVD quality... Look at the Mpeg 2 settings in Speededit render panel. There you have presets to DVD but you can make your own if you need better quality.
I would not put 3 hours of video on a DVD as it is fits about 2 hours of DVD quality on them. Split the video to 2 DVD to keep DVD quality.

chribba

Video does not need split to 2 DVDs - it was already done on DL (dual-layer) DVD+R...

[xpycm]

SpeedHQ isn't any smaller than DV, so no additional space-saving to be found there, although the quality may be better at the same file size. (I don't think anyone has ever claimed SpeedHQ is lossless, however.)

Steve,

I don't know if Speed HQ is lossless or not but I ran a little test on my 4-year old P4 3.2 Ghz 2GB RAM Windows XP Pro machine for a SD project (1 hr 3min 39 sec.)

Rendering to .avi HQ codec took less than 50 min; file size - 8.67 GB (!);
Rendering to .avi DV Type 2 codec took 1 hr 27 min; file size - 13.4 GB...

HQ-rendered file is actually 35% smaller in my case (very simple project, no layering, several transitions + titles).

There is, though, some confusion on using HQ-rendered file for further encoding: when bringing it into TEMPGenc 3.0 or TEMPGenc Author 3.0 - both of them show field order 'Top first', not 'Bottom first' as in DV Type 2... Bringing it to Procoder 2.0 shows normal 'Bottom field first'...

Does Speed HQ codec change the field order or should we manually change it back to 'Bottom first' when encoding for DVD?.. That is the question...

Luckily, we can avoid the rendering stage now using AVI-wrapper (for video), but still have to render audio to .wav only, which is pretty fast anyway...

[SBowie]

Rendering to .avi HQ codec took less than 50 min; file size - 8.67 GB (!);
Rendering to .avi DV Type 2 codec took 1 hr 27 min; file size - 13.4 GB...Interesting. I haven't run any tests, but am pretty sure the compression ratio touted 'back in the day' was 5:1 - same as DV25. Perhaps something has changed over time.
Does Speed HQ codec change the field order or should we manually change it back to 'Bottom first' when encoding for DVD?.. That is the question...I wouldn't have thought so, but again would have to test to be certain. I think it's more likely that TMPEGenc is simply interpreting them differently.

[ScorpioProd]

In my experience, for SD material, SpeedHQ will always result in a smaller file size than DV. Whether this is a good thing or a bad thing, I will let you all make your own quality comparisons, I have done my own in the past.

Point being, if the source is DV, you'll keep maximum quality by leaving it DV. And since the end product is gonna be MPEG-2 anyway, it's rather silly to convert it to an intermediate lossy format inbetween.

As for the field order, the VTP loader will always supply TMPGEnc with content that is top field first, as opposed to a normal DV file which is bottom field first.

A simple fielding test in TMPGEnc will show which is correct in any situation.

[xpycm]

Point being, if the source is DV, you'll keep maximum quality by leaving it DV.

Eugene,

You already have made comparisons and have better idea, what codec gives better quality, no doubts about it... but in your own words, SpeedEDIT doesn't support 'Smart Rendering', so, it will de-compress DV content to some intermediate format (hopefully, lossly), then will re-compress it to whatever format you choose with codec you prefer: Speed HQ, or DV - but it will not be same original DV, because there will be a new process of compressing... IMHO, it just happens that DV codec gives better result...

[ScorpioProd]

Hmmh, OK, good point. :)

But I'm just saying that if you're gonna be going to MPEG-2 later, why render to ANY other codec at all.

Rendering to a lossy intermediate to save 1/3 of the space doesn't make sense to me if you're gonna compress later anyway.

I mean, with the VTP loader and AVI Wrapper available in SpeedEDIT, there's no need. Just go from the original format directly to MPEG-2.

[xpycm]

Hmmh, OK, good point. :)

But I'm just saying that if you're gonna be going to MPEG-2 later, why render to ANY other codec at all.

Rendering to a lossy intermediate to save 1/3 of the space doesn't make sense to me if you're gonna compress later anyway.

I mean, with the VTP loader and AVI Wrapper available in SpeedEDIT, there's no need. Just go from the original format directly to MPEG-2.

120% agree!.. :agree: