Everytime I greatly reduce the bitrates of my dvd mpegs to 2200-2300 kbps I get bad pixelation problems during scenes with movement. I just use tmpgenc express 4 and nothing else. What exactly am I doing wrong? What other programs should I use? Reducing resolution down to 352x480 helps a little but is hardly a solution.
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How do you lower bitrate but maintain quality?
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Originally Posted by zanos
Otherwise, as was pointed out, you have to look at a non-DVD codec such as Divx or H264. Divx will give you high quality at bitrates of around 1500 - 1800 and will be playable on most Divx compatible DVD players.Read my blog here.
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Ever try CCE? The Basic version is only $60 and worth every penny even if it was priced like the professional version, which is $2000.
It gives you incredible MPEG-2 encodes at lower bitrates (without having to resort to non-DvD codecs).
However, achieving excellent quality at 2200-2300kbps with MPEG-2 isn't possible for all sources but CCE is your best shot IMO (over TMPGEnc).
I would recommend you use quality based encoding to get the minimum possible bitrate for good quality.
Good settings for high quality DvD video at low bitrates in one pass:
-1-pass VBR
-enable "for DvD"
-In "Quantization factor and Bitrate" select
Q=35, Min=1500, Max=8000 (or you can experiment with Max=7500 and lower)
You will get even smaller files (at a similar level of quality) if you use AviSynth with proper deinterlacing and some noise reducers, as well as MSU filters for Smart DeBlocking.I hate VHS. I always did. -
EDIT: Deleted my post here. Disregard.
I hate VHS. I always did. -
Don't forget that mpeg2 can be decoded more easily than mpeg4 and every player that handle mpeg2 shouldn't have any problem with it but with mpeg4, output can vary a lot from players (really like night and day!)
I don't know if it was during an update but some of my mpeg4 videos that looks blocky in VLC, now looks nice after a re-install to latest version.
Color will also vary in different players , in quicktime colors are more fade but i never had a blocky problem in quicktime.
Quality is subjective !
Personally , I often pass my mpeg2 through a serie of filters in Ulead that sharpen my videos (sharpen filter in Ulead goes to 1 to 5 , i can go up to 2-3 ! ) before sending them to Megui.
It's sure that a more sharpen video will need more bitrate but that's the way i like it! -
Originally Posted by zanos
It has to be something special before I'll use a rate over 2500.
Otherwise, you can reduce the detail a bit by smoothing the image, e.g. applying a little blur, before encoding. (I assume you're using Avisynth; you have to for HCEnc anyway.)
-- This is for standard drama TV shows and movies. If you're doing something like sport, lots of sweeping pans and fast movement, you really do need a higher rate to do it justice.
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