Subtitle (Flicking/shaky/not still) on TV only but still on monitor.

[Anime]

flickering mention in this post is not blinking is a feeling of shaking/ trembling

i been creating alot subtitle, for my DVD
but the more i created i found a glitch on my subtitle

i thought it is normal for subtitle to be abit flickering on my TV screen

but a day i added 3 subtitle to my DVD

i uses 1 x VOBSUB(found on net) and 2 x SST(created by maestroSBT) .bmp 4 bits uncompressed
and feed to muxman for author/mux

result showns that the VOBSUB doesn't use AA , transparency 15 except for BG 0
my subtitle stream 1 also doesn't use AA, transparency 15 except for BG 0
my subtitle stream 2 uses AA, transparency 15 except for BG 0

i try to use some near colors for my subtitle stream as the ones in vobsub.
they all look nice on my monitor after muxman to dvd by muxman as usual (big and round)

but result shown on TV that my subtitle is flicking as usual
but the stream of VOBSUB is not flicking at all

i tried many ways compressed or uncompressed 4 bits bmp
AA or NOT my subtitle won't get flickless on TV other than if i set my TV mode to
D.PNR = dynamic picture noise reduction

but how come the vobsub subtitle stream i added looks so "STIIL" with or without TV function hack

do you know a way to workout?

[jagabo]

Use fonts without serifs and antialiasing. If your software doesn't support antialiasing, render 2 or three times larger and reduce the size with a bilinear filter.

[mats.hogberg]

When I authored with IfoEdit, and subs from STR2SUP, I had this flickering subs too - cured by positioning the subs 1 pixel higher(!)

/Mats

[Anime]

@jagabo
i using maestroSBT -> muxman -> and some japanese / chinese font

@mats.hogberg
is it the pixel that occur? i using maestrosbt i often let the subtitle below the black border for 16:9 but recently i practice inside the video screen

the shaking is the font body color example 255 255 255
inside the font body you see the color white flickering...

like example of TV broadcast HARDSUBBED i also see that sometimes they are flickering when the contrast of high is rather high

but during some TV program you are comfortable with the subtitle and it looks rather smooth.

so i went digging out many of my commercial DVD. some companies subtitle DO flicker but some does NOT at all.

i couldn't figure out why and the difference.
i also tried to follow the exact font and outline color but result doesn't changed anything.

i also tried to reduce the white level to 210 210 210 which reduce flicking abit

i also reduce transprancy to 14 for experiment but also flickering.....

the last conclusion is FEEDING TIFF rather than 4 bit BMP to muxman

but i have no idea if muxman accept tiff or does that matter anything
or prblems comes from creating 16:9 subtitle for a 4:3 TV?

[mats.hogberg]

What I mean is that the subs stopped flickering when i put them at 501 pixels instead of 500 (or something like that). Strange but true. Must have something with (de)interlacing to do.

/Mats