Need help with filesize :)

Dreist · 12-28-2007, 11:31 PM

Hey guys,
I've got a problem with the Filesize of my Videoclips.
I rendered exactly as shown in Thiras' guide (except the audio thingy, just included audio in the movie with 44khz 192kbps) and my rendered 2min14sec clip
(30fps, 640x400 resolution) is 86mb o_O
I dont think this is normal coz there are Movies with muuuuuuuch better Quality at much better resolutions and same fps/25fps which are like 17 minutes long and just 600mb big...
I use Sony Vegas 7.0e

What do you think is the problem? :E

(I'm completely new to Vegas but know some basics of cutting/editing/rendering etc.)

Thiras · 12-29-2007, 01:45 AM

What bitrate did you use?

vegito254 · 12-29-2007, 01:52 PM

600mb for 17 minutes is to big imo

What I don't get is when I fraps at 1152*864 and render to 1152*864 or to 800*600 with same bitrate and stuff that I get the same size

I thought you would win size since you trow away pixels or someting

Thiras · 12-29-2007, 02:06 PM

Bitrate = data/time, resolution is irrelevant.

1000 kbit at 1152x864 would give worse quality but higher rez than 1000 kbit at 800x600.

Dreist · 12-29-2007, 03:33 PM

Quote:

Originally Posted by Thiras

What bitrate did you use?

I couldnt find the bitrate option, but it's 1679kBit/s in the video.
I rendered another one, it had the same butrate and resolution, but is 97,1mb big and just 59 seconds long o_o

Thiras · 12-30-2007, 12:52 AM

Quote:

Originally Posted by Dreist

I couldnt find the bitrate option, but it's 1679kBit/s in the video.

Where did you get 1679 from?

The bitrate option is in the first window of xvid, where you should have "target bitrate" set and a value.

Dreist · 12-30-2007, 01:22 AM

Quote:

Originally Posted by Thiras

Where did you get 1679 from?

The bitrate option is in the first window of xvid, where you should have "target bitrate" set and a value.

I got the 1679 as a preset value i think....
Found the bitrate option...it was "Target size", but clicking that made it show the "Target bitrate" button lol

But now im getting a codec error when I try to start saving the 1st pass (or 2nd, doesnt matter)...just going to reinstall and report if the filesize is ok.

Thanks for your help so far

vegito254 · 12-30-2007, 07:39 PM

Quote:

Originally Posted by Thiras

Bitrate = data/time, resolution is irrelevant.

1000 kbit at 1152x864 would give worse quality but higher rez than 1000 kbit at 800x600.

Yes I kow that. But shouldn't you lose filesize when you go to a lower resolution? What I mean is you encode your file 1 time with 1000 kbit at 1152*864 and then 1 time with 1000 kbit at 800*600. Then when you compare the two files shouldn't the last one be smaller then the first one?

or am i missing something

Thiras · 12-30-2007, 08:23 PM

No. The bit rate is how much data is assigned to the video per second.

1000 bkit = 125 kilobytes a second. Always.

vegito254 · 12-31-2007, 08:08 AM

Ow ok I see

thnx for clearing that out for me Thiras

12-28-2007, 11:31 PM	#1
Dreist Initiate Join Date: Dec 2007 Posts: 3	Need help with filesize :) Hey guys, I've got a problem with the Filesize of my Videoclips. I rendered exactly as shown in Thiras' guide (except the audio thingy, just included audio in the movie with 44khz 192kbps) and my rendered 2min14sec clip (30fps, 640x400 resolution) is 86mb o_O I dont think this is normal coz there are Movies with muuuuuuuch better Quality at much better resolutions and same fps/25fps which are like 17 minutes long and just 600mb big... I use Sony Vegas 7.0e What do you think is the problem? :E (I'm completely new to Vegas but know some basics of cutting/editing/rendering etc.)

12-29-2007, 01:45 AM	#2
Thiras Senior Member Join Date: May 2005 Posts: 528	What bitrate did you use?

12-29-2007, 01:52 PM	#3
vegito254 Member Join Date: Nov 2005 Posts: 90	600mb for 17 minutes is to big imo What I don't get is when I fraps at 1152864 and render to 1152864 or to 800*600 with same bitrate and stuff that I get the same size I thought you would win size since you trow away pixels or someting

12-29-2007, 02:06 PM	#4
Thiras Senior Member Join Date: May 2005 Posts: 528	Bitrate = data/time, resolution is irrelevant. 1000 kbit at 1152x864 would give worse quality but higher rez than 1000 kbit at 800x600.

12-30-2007, 08:23 PM	#9
Thiras Senior Member Join Date: May 2005 Posts: 528	No. The bit rate is how much data is assigned to the video per second. 1000 bkit = 125 kilobytes a second. Always.

12-31-2007, 08:08 AM	#10
vegito254 Member Join Date: Nov 2005 Posts: 90	Ow ok I see thnx for clearing that out for me Thiras