# Why is the video file size reduced after processing? **URL:** \ **Category:** General\ **Tags:** reviewed\ **Created:** [January 30, 2026, 5:55pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589 "2026-01-30T17:55:41Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [January 30, 2026, 5:55pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/1 "2026-01-30T17:55:41Z")
Am using Topaz labs for video to correct/deblur video footage, HD h264 in an MOV container. The file is 4 gb and the output is set at ProRes HQ or higher and the net result file size is 2 GB. While Topaz video may be efficient, I do not think it is THAT efficient. Here is mediainfo: Format : MPEG-4 Format profile : QuickTime Codec ID : qt 2011.07 (qt /pana) File size : 3.50 GiB Duration : 7 min 0 s Overall bit rate mode : Variable Overall bit rate : 71.5 Mb/s Frame rate : 23.976 FPS Encoded date : 2017-06-19 15:58:43 UTC Tagged date : 2017-06-19 15:58:43 UTC Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L5 Format settings : 2 Ref Frames Format settings, CABAC : No Format settings, Reference frames : 2 frames Format settings, GOP : N=1 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 7 min 0 s Bit rate mode : Variable Bit rate : 70.0 Mb/s Maximum bit rate : 71.7 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel\*Frame) : 1.407 Stream size : 3.42 GiB (98%) Encoded date : 2017-06-19 15:58:43 UTC Tagged date : 2017-06-19 15:58:43 UTC Color range : Full Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Codec configuration box : avcC Audio ID : 2 Format : PCM Format settings : Big / Signed Codec ID : twos Duration : 7 min 0 s Bit rate mode : Constant Bit rate : 1 536 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Bit depth : 16 bits Stream size : 77.0 MiB (2%) Encoded date : 2017-06-19 15:58:43 UTC Tagged date : 2017-06-19 15:58:43 UTC Other ID : 3 Type : Time code Format : QuickTime TC Duration : 7 min 0 s Bit rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Time code of first frame : 09:41:12:03 Time code of last frame : 09:48:12:02 Time code, stripped : No Encoded date : 2017-06-19 15:58:43 UTC Tagged date : 2017-06-19 15:58:43 UTC ---
**Author:** ![TPX](https://community.topazlabs.com/user_avatar/community.topazlabs.com/tpx/32/194727_2.png) [@TPX](https://community.topazlabs.com/u/TPX)\ **Post date:** [January 30, 2026, 6:04pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/2 "2026-01-30T18:04:14Z")
Which filter you are using? ---
**Author:** ![jo.vo](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/j/f19dbf/32.png) [@jo.vo](https://community.topazlabs.com/u/jo.vo)\ **Post date:** [January 30, 2026, 6:08pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/3 "2026-01-30T18:08:36Z")
If you’re reducing noise it’s normal that the file size is reduced even if the videos quality is superior. Noise is the death of about every compression. ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [January 30, 2026, 6:23pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/4 "2026-01-30T18:23:59Z")
@TPX Which filter? ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [January 30, 2026, 6:24pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/5 "2026-01-30T18:24:34Z")
I am using a deblur. I shot at 11 fps but I really wanted 23.967 fps ---
**Author:** ![jo.vo](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/j/f19dbf/32.png) [@jo.vo](https://community.topazlabs.com/u/jo.vo)\ **Post date:** [January 30, 2026, 6:32pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/6 "2026-01-30T18:32:57Z")
Which enhancement model do you use in Topaz Video? They all do some kind of noise reduction… ---
**Author:** ![alanhusband-677420](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/a/7ba0ec/32.png) [@alanhusband-677420](https://community.topazlabs.com/u/alanhusband-677420)\ **Post date:** [January 30, 2026, 7:01pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/7 "2026-01-30T19:01:26Z")
You’ve posted the MediaInfo for the source file, which looks reasonable, but not the ProRes output file, which you have the issue with. ProRes HQ usually exports with a bit rate over 200 Mb/s (at 1080p). A test file I exported from TV just now had a bit rate of 250 Mb/s. ProRes Proxy has a typical bit rate lower than your source file. Can’t say much without more info. ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [January 31, 2026, 1:54am UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/8 "2026-01-31T01:54:53Z")
The model used is ‘Themis’, will get the mediainfo soonish…. ---
**Author:** ![Mayday](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/m/ad7895/32.png) [@Mayday](https://community.topazlabs.com/u/Mayday)\ **Post date:** [February 1, 2026, 1:48am UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/9 "2026-02-01T01:48:25Z")
It gets less large with AV1 and preserve grain, I do know some tests with AOMedia codec, it’s impressive, but encoding time is on Starlight level 🤪 ok here gets larger I have set CFR very low to 8, source is FFV1 141GB, predicted AV1 result: 13.2GB ![Av1_Amo_FastFlix](https://community-cdn.topazlabs.com/original/3X/6/4/64574d96e49aff9572afe74570981dca829ae6ac.jpeg) ---
**Author:** ![Mayday](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/m/ad7895/32.png) [@Mayday](https://community.topazlabs.com/u/Mayday)\ **Post date:** [February 1, 2026, 6:20pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/10 "2026-02-01T18:20:13Z")
@developer-2519 maybe check output film duration is the same as in source. I had already aborts and then wondered why the output file was so small 😉 ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [February 1, 2026, 7:54pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/11 "2026-02-01T19:54:54Z")
Here is an example of the media info post processing: Complete name : /home/fathomstory/Videos/HeartOSC/Don Cooper and Anson Finlay/P1150788\_449826089.mov Format : MPEG-4 Format profile : QuickTime Codec ID : qt 0000.02 (qt ) File size : 1.39 GiB Duration : 7 min 47 s Overall bit rate mode : Variable Overall bit rate : 25.5 Mb/s Frame rate : 23.976 FPS Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2017-06-19 15:50:46 UTC major\_brand : qt minor\_version : 537986816 compatible\_brands : qt pana creation\_time : 2017-06-19T15:50:46.000000Z videoai : Motion blur removed using thm-2. Processed using apo-8 replacing duplicate frames encoder : Lavf61.3.103 IsTruncated : Yes Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4 Format settings : CABAC / 3 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 3 frames Format settings, GOP : M=1, N=30 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 7 min 46 s Bit rate mode : Variable Bit rate : 24.0 Mb/s Maximum bit rate : 16.0 Mb/s Width : 1 800 pixels Height : 1 010 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel\*Frame) : 0.551 Stream size : 1.31 GiB (94%) Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2017-06-19 15:50:46 UTC Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Codec configuration box : avcC Audio ID : 2 Format : PCM Format settings : Big / Signed Codec ID : twos Duration : 7 min 47 s Bit rate mode : Constant Bit rate : 1 536 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Bit depth : 16 bits Stream size : 85.5 MiB (6%) Default : Yes Alternate group : 1 Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2017-06-19 15:50:46 UTC Other ID : 3 Type : Time code Format : QuickTime TC Duration : 1 s 251 ms Frame rate : 23.976 (24000/1001) FPS Time code of first frame : 09:33:14:15 Time code, stripped : Yes Language : English Default : No Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2017-06-19 15:50:46 UTC * * * **Pre processing:** P1150788.MOV Format : MPEG-4 Format profile : QuickTime Codec ID : qt 2011.07 (qt /pana) File size : 3.98 GiB Duration : 7 min 57 s Overall bit rate mode : Variable Overall bit rate : 71.5 Mb/s Frame rate : 23.976 FPS Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2020-03-29 15:23:01 UTC Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L5 Format settings : 2 Ref Frames Format settings, CABAC : No Format settings, Reference frames : 2 frames Format settings, GOP : N=1 Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 7 min 57 s Bit rate mode : Variable Bit rate : 70.0 Mb/s Maximum bit rate : 71.7 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel\*Frame) : 1.408 Stream size : 3.89 GiB (98%) Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2020-03-29 15:23:01 UTC Color range : Full Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Codec configuration box : avcC Audio ID : 2 Format : PCM Format settings : Big / Signed Codec ID : twos Duration : 7 min 57 s Bit rate mode : Constant Bit rate : 1 536 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Bit depth : 16 bits Stream size : 87.5 MiB (2%) Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2020-03-29 15:23:01 UTC Other ID : 3 Type : Time code Format : QuickTime TC Duration : 7 min 57 s Bit rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Time code of first frame : 09:33:14:15 Time code of last frame : 09:41:12:02 Time code, stripped : No Encoded date : 2017-06-19 15:50:46 UTC Tagged date : 2020-03-29 15:23:01 UTC ---
**Author:** ![alanhusband-677420](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/a/7ba0ec/32.png) [@alanhusband-677420](https://community.topazlabs.com/u/alanhusband-677420)\ **Post date:** [February 1, 2026, 9:17pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/12 "2026-02-01T21:17:16Z")
Your output file isn’t ProRes. It’s just H.264 at a lower bit rate (and a slightly lower resolution) than the source file. So no surprise it’s a smaller file. The source file is using a much higher bit rate because all frames are intra-coded (GOP length of 1). I’m guessing that’s the format used by your camera for ease of editing. ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [February 1, 2026, 9:26pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/13 "2026-02-01T21:26:39Z")
Hello, What settings would you suggest because even at the highest settings the files are still smaller. ---
**Author:** ![alanhusband-677420](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/a/7ba0ec/32.png) [@alanhusband-677420](https://community.topazlabs.com/u/alanhusband-677420)\ **Post date:** [February 1, 2026, 9:33pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/14 "2026-02-01T21:33:25Z")
Use ProRes 422 Standard or HQ. FFV1 is another option. There’s also DNxHR SQ or HQ. This assumes you’re going to edit the footage in a NLE. ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [February 2, 2026, 9:33pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/15 "2026-02-02T21:33:11Z")
I have used Topaz Video on my machine, which is modestly powered and a relative, who has a more powerful machine also used Topaz for video to deblur my footage. From my end, I adjusted all settings (Apple Pro res, HD as desired result) and the output is still proxy. The relative, who shared screenshots, is still getting proxy, no matter what the output settings are. This means either: 1. there is a glitch 2. there is a less obvious way to NOT get proxy as a result. Can someone share screenshots, step by step to take H264 HD footage, deblur and output as Apple Pro Res HD? Please and thanks. Actually, now that I think about it , why the fuck does Topaz offer Proxy AT ALL?!?! It is up to the NLE to produce proxies. So it makes no sense this is even an option in the software. I wasted a lot of hours and computing power for NOTHING because these guys make a priority of outputting shit over what users actually need. Therefore, the software is by default, shit and you need to do an awful lot of tweaking to get something that is not shit. ---
**Author:** ![alanhusband-677420](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/a/7ba0ec/32.png) [@alanhusband-677420](https://community.topazlabs.com/u/alanhusband-677420)\ **Post date:** [February 2, 2026, 11:29pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/16 "2026-02-02T23:29:24Z")
All you have to do is check the codec settings before you hit the export button. You can even export without applying any adjustments, and it will simply transcode the source file. ![Screenshot 1](https://community-cdn.topazlabs.com/original/3X/1/5/157cdf61193f60f7dd88388d138d192c79e42227.png) If you go into the app preferences you can also set the default codec settings for export, so you don’t need to adjust them everytime. ![Screenshot 2](https://community-cdn.topazlabs.com/original/3X/c/4/c450c4451d5e2777237487e2934d707724b29212.png) ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [February 2, 2026, 11:32pm UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/17 "2026-02-02T23:32:10Z")
Yep, that’s what I did. I am now going to save myself further money, time and grief. That is tuition paid on lessons on what NOT to invest in. I am now done with Topaz. Thanks for your help. ---
**Author:** ![TPX](https://community.topazlabs.com/user_avatar/community.topazlabs.com/tpx/32/194727_2.png) [@TPX](https://community.topazlabs.com/u/TPX)\ **Post date:** [February 3, 2026, 8:31am UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/18 "2026-02-03T08:31:20Z")
I mean, @alanhusband-677420 did write that your file has a smaller res after processing. And you did use a compressed file, processed it , and did save it in a compressed format again. So the has already compressed 2 times in this process. Every time you compress you will loose data and just choosing an uncompressed file format will not save your file from loosing data because it did already. * * * * * * That’s one thing about the internet that I don’t understand. Everywhere you look, you see the most amazing camera systems with all kinds of features. But in the end, hardly anyone knows how to edit & record videos or images without losing quality. Very few people know what bit depth means either. ---
**Author:** ![developer-2519](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@developer-2519](https://community.topazlabs.com/u/developer-2519)\ **Post date:** [February 3, 2026, 8:41am UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/19 "2026-02-03T08:41:05Z")
Yessssss, what on earth would I want with regular resolution when I can get nothing but proxies no matter what settings I use. I give it to someone else and he only gets proxies. Proxies! Proxies Proxies! Screw me to the sidewalk nothing but proxies! Who the hell needs anything but proxies. Good thing Topaz outputs proxies by default! That’s all you need are proxies! Proxies! Proxies! Nothing but proxies! That’s one thing I don’t understand are people like you who do not want to understand that I do not want proxies. THAT is the issue. My camera outputs H264. You \*can\* correct the footage and output it at pro res. @[TPX Thomas K.](https://community.topazlabs.com/u/tpx) Now go buy yourself a red and please beat yourself to death with it. One that has a high bit depth. ---
**Author:** ![TPX](https://community.topazlabs.com/user_avatar/community.topazlabs.com/tpx/32/194727_2.png) [@TPX](https://community.topazlabs.com/u/TPX)\ **Post date:** [February 3, 2026, 10:25am UTC](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589/20 "2026-02-03T10:25:56Z")
Within those 4 days of posting an testing, did you ever reach out to the support? * * * I do film in 12bit but compressed. [Next page](https://community.topazlabs.com/t/why-is-the-video-file-size-reduced-after-processing/100589.md?page=2)