MovieChat Forums > Blu-ray Hi-Def Equipment > 24p and Dolby/DTS-HD?

24p and Dolby/DTS-HD?

posted 14 years ago by PF4Eva
3 replies | jump to latest

I have a few questions, and would like some help.

HDTV: Sanyo DP42840; 42" 60Hz 1080p
Blu-ray: LG BD550; 1080p
Home theater/surround: Samsung HT-TX72; 480p DVD, HDMI; 5.1

1. Are both my player and TV capable of 24p? If so, how do I go about enabling it?

2. My player has Dolby TrueHD and DTS-HD MA, but my surround sound system doesn't; it only has standard Dolby Digital and DTS. HDMI is connected, so I'm confused. Am I or am I not getting the DTHD and DTS-HD MA coming out of my speakers? Would I have to upgrade to one with those codecs to actually get the sound?

Another question, so I'm prepared: Does anyone know of any playback/firmware issues with Tron or Tron: Legacy, from reviews and such? I guess nobody will know till tomorrow, but I thought I'd ask. I'm dying to see them.

Thanks for all your help.

Daeg Faerch de-aged in another Halloween -- make it happen, pleeeze?

[–] mikejonas 14 years ago

1. The player, yes; the TV, no. A TV would need a 120Hz refresh rate at least to be capable of 24p.

2. No, you're not--your system is using one of the signals that it *can* use. Yes, you'd need to upgrade your receiver to use hear the lossless audio.

[–] x_jmt_x 14 years ago

1. The player, yes; the TV, no. A TV would need a 120Hz refresh rate at least to be capable of 24p.If that's true, then i guess no tv in europe is able to play 24p, not a single one, as the refresh-rates are 50/100/200hz. then again, miraculously, my 50hz tv does indeed accept and reproduce 24p. go figure.2. No, you're not--your system is using one of the signals that it *can* use. Yes, you'd need to upgrade your receiver to use hear the lossless audio.You sure about that one, either? I'd assume that the player is 2.0 profile and thus able to decode the HD-encoded audio to PCM.. which would work via HDMI. you *know* that the HT-system does not accept PCM, then?

I find your answers to be a bit suspect.

I can just about remember the time, when 'human suspect' was a given, not an option.

[–] Ace_of_Sevens 13 years ago

You are mixing up frame rate and refresh rate of the TV. Most movies are shot at 24 fps and this is all Blu-ray supports in 1080p. You basic TV refresh rate is 60 Hz for NTSC or 50 for PAL. These standards are on their way out, but their refresh rates have stuck around for compatibility reasons.

When your player converts a 24 fps movie to 60 fps for viewing, all it does is show one frame twice, then the next three times. Having some frames up for 50% longer than others can make it look slightly jerky on playback. This is most obvious on smooth motion, like credits scrolling. On a 120 Hz TV, it can show each frame five times, meaning each frame gets an equal amount of time and the motion is smooth.

You are thinking of motion plus or intelligent frame creation or whatever else manufactures call it. This takes a 24 fps source and converts it to 120 Hz by making up frames to show between the ones on the disc instead of just repeating them. You'll want to turn this off, but the TV is goign to run at 120 Hz regardless.

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