Panasonic UB820/UB9000 4K UHD Blu-ray player

[kevers7290]

Originally Posted by PissedOffPeoN

you can turn it off while playing a video just hit options and scroll down to the sound part and click high clarity sound video off.

Thank you!

[PissedOffPeoN]

I have been playing with that setting for days now i think i will leave it off to lol.

[Mobe1969]

Originally Posted by sapiendut

You’re wrong. Too many people think louder = better dynamics. It’s wrong. Proper mixing done for music back in the 70s, 80s and early 90s tend to needed to be played back with volume level between +5 to +8 dB more than “modern” music. Once you extract the audio to any audio software, you’ll see that the modern and louder recording are seems to be louder simply because the average loudness have been pushed up higher creating a more narrow dynamic range. Most movies in UHD have only headroom of about 10 dB where the proper headroom is supposed to be 20 dB.

I'm saying if the level is overall lower it is using less bits in the waveform and that means you have less dynamic range available to use. In the simple 8 bit / 16 bit analogy I was using, the quietest sound would be a 1 bit variance, and the loudest 8bit / 16 bit waveform, so you have less dynamic range available in the 8 bit. I'm not saying that would should aim to have the average waveform being say 14 bits which would be sure loud but would be low dynamic range. I'm saying if 8 bits is the loudest sound you have less dynamic range available than if the loudest was 16.

It isn't like the disney tracks have some amazing dynamic range in play, where you have the volume up to hear the dialog, and then when an action scene with explosions are happening you are getting deafened. You aren't, there is so little variance for the entire tracks. Even seeing peak and average spectrums of these post disney atmos remixes for MCU movies where we have the original 7.1 mixes there is clearly less range in use. And ones like Black Panther where we don't have a prior mix to compare, BP is just hard to listen too. It sounded like the center channel dialog was the loudest part of the entire track. I should demux it and have a look at it closer...

[Geoff D]

Originally Posted by PissedOffPeoN

I have been playing with that setting for days now i think i will leave it off to lol.

Not sure it ever really did much when I bothered using it, if anything it might've made it sound a fraction harsher.

[curlyjive]

Originally Posted by Geoff D

Not sure it ever really did much when I bothered using it, if anything it might've made it sound a fraction harsher.

The main reason I use the high clarity setting is allows the display to be completely off instead of just dimmed.

[Geoff D]

I like having the display, it's the one thing I don't dig about the 420.

[AKORIS]

I was wondering if someone could explain the "optical downsampling" options and what I should set them to?

192khz, 88, etc?

I recently went back to a receiver (listed on my signature along with my speakers) and want to have the best sound. I set the secondary audio to off so that the receiver processes the signal and the sound is great. I just want to be safe in the sense that I don't choose an option that could harm or damage my speakers.

I can't seem to find any clear info on this.

[HDTV1080P]

quotes


"JVC will release a firmware upgrade on Thursday that adds significant capabilities to its flagship DLA-RS4500K 4K laser projector, one of Sound & Vision’s 2017 Top Picks."

"The V2.0 firmware update, which will be available for download on June 27, will bring auto tone mapping for HDR10 high dynamic range (HDR) content, dedicated color profiles for Panasonic’s flagship DP-UB9000 4K/Ultra HD Blu-ray player, and expanded screen-adjustment modes to the RS4500."

Read more at https://www.soundandvision.com/conte...gQpU11fimO2.99

[nachoju95]

Hi Robert
Do you still have stock of the Panasonic UB820?

Thanks!

[Robert Zohn]

^ Yes!

[Kris Deering]

Originally Posted by Kris Deering

The difference in general video playback is subtle though, and only the most grueling patterns really show the difference. But I find the operability of the Oppo easier to live with on a day to day basis. The Panasonic players are quite sluggish in comparison for daily use, which makes them tedious by comparison.

One thing of note, for this comment I was talking about the core video performance of the Oppo vs the Panasonic. Panasonic's key difference is chroma resolution performance, and once again this really is only an issue when you are talking about chroma test patterns, not as much with normal video playback.

The Panasonic is clearly ahead of the Oppo when it comes to HDR features though. For raw playback, they are both fine, but the Panasonic's SDR and HDR Optimizer options are a clear step ahead of what Oppo offers for HDR processing and the best solutions on the market right now for player based HDR processing (if needed).

[sapiendut]

Kris, it’s my understanding that most displays than not actually require the HDR Optimizer of the Panasonics as most displays can only deal at 1000 nits or lower. Even on a Z9 I can see the Optimizer helps a little bit here and there. Not necessarily a must, but it still helps. Or is my understanding wrong?

[Kris Deering]

Originally Posted by sapiendut

Kris, it’s my understanding that most displays than not actually require the HDR Optimizer of the Panasonics as most displays can only deal at 1000 nits or lower. Even on a Z9 I can see the Optimizer helps a little bit here and there. Not necessarily a must, but it still helps. Or is my understanding wrong?

Agree. Very few displays don't benefit, but it isn't a "must-have" for higher nit displays like it is for those with bad tone mapping (early OLED) or something like a projector. But I'd be hard pressed to recommend NOT using the Optimizer regardless of display type it is attached to if you have the Panasonic in your setup.

[sapiendut]

To JohnAV,

Just a heads up, you may want to read what Kris Deering mentioned above about the 9000.

PS: do you happen to know whether the DV auto detect will ever come to Sony 800m2 ? In one hand I only need that feature for the 800m2 but if it will never get that feature via fw update, I might as well get rid of the 800m2 and get the 1100ES instead. Thanks beforehand.

[JohnAV]

Originally Posted by sapiendut

To JohnAV,

Just a heads up, you may want to read what Kris Deeriso lateng mentioned above about the 9000.

PS: do you happen to know whether the DV auto detect will ever come to Sony 800m2 ? In one hand I only need that feature for the 800m2 but if it will never get that feature via fw update, I might as well get rid of the 800m2 and get the 1100ES instead. Thanks beforehand.

Stop worrying about packing your AV Calibrator mobile setup, as it sounds like you need a real vacation from your business as you having been working overtime shoring up your opinions here as well as doing the same in other topics. Too much work related discussion has got to be wearing on you. Take a break, have a good Canadian steak and IPA. Sorry the gang here picked on you so much lately.

[spider-neil]

A good scene for testing the 820 is Infinity War at the start when Loki makes the Tesseract appear when Thanos is threatening Thor's life. When the tone curve is set to '0', inside the cube is a blue fog. When the tone curve is set to +4, inside the cube you can distinctly see the mind gem.

[Geoff D]

Originally Posted by spider-neil

A good scene for testing the 820 is Infinity War at the start when Loki makes the Tesseract appear when Thanos is threatening Thor's life. When the tone curve is set to '0', inside the cube is a blue fog. When the tone curve is set to +4, inside the cube you can distinctly see the mind gem.

Funny, I can see what's inside the cube without having to touch anything on my TV or player.

PS

Tesseract is the Space gem

[Geoff D]

Originally Posted by Kris Deering

Agree. Very few displays don't benefit, but it isn't a "must-have" for higher nit displays like it is for those with bad tone mapping (early OLED) or something like a projector. But I'd be hard pressed to recommend NOT using the Optimizer regardless of display type it is attached to if you have the Panasonic in your setup.

Honestly, I don't like how the Panny remaps the image. I've literally used the Optimiser three times for actual viewing on the ZD9 and that was enough. It's not that it doesn't do what it says on the tin, keeping the mid-brightness and APL at the right level but mapping down the highlights past x level, but in doing so it actually has the effect of reducing the HDR impact for me as although it's preserving the highlight detail it's truncating the physically perceptible range of brightness to darkness.

That's how mapping works, no argument there, and my sensitivity to the peak brightness aspect comes from owning a light cannon of a TV, sure, as I'm missing that extra glint of specular brightness that the Optimiser is rolling off, but even so: I prefer to reduce the contrast on my TV to effect mapping to 4k-nits worth of information for any such discs as this maintains the PQ EOTF curve albeit at a lower global luminance level.

This would of course be suicide on anything but a light cannon of a TV and would be completely out of the question for daytime viewing with lots of ambient light, but as I've got the ZD9 and I always watch HDR in a darkened room then the reduction in luminance isn't a major issue. In doing so it still keeps the dynamism of the curve relative to how light and dark interact in the HDR space, rather than keeping 50% of the curve constant and then folding down the rest in a much straighter trajectory. On my TV the Optimiser almost looks more like SDR with knobs on rather than true HDR.

[sapiendut]

Originally Posted by JohnAV

Stop worrying about packing your AV Calibrator mobile setup, as it sounds like you need a real vacation from your business as you having been working overtime shoring up your opinions here as well as doing the same in other topics. Too much work related discussion has got to be wearing on you. Take a break, have a good Canadian steak and IPA. Sorry the gang here picked on you so much lately.

About needing a break, I do need that badly. I haven’t had a real break for at least 12 years. The sad part is I don’t know how to switch off. I haven’t been able to watch movie or a musical or a concert without my brain by reflex thinking hard about the production aspect, miking technique, automation, sound distribution, and the list goes on. It is really tiring for being able to enjoy something as-is.

[Kris Deering]

Originally Posted by Geoff D

Funny, I can see what's inside the cube without having to touch anything on my TV or player.

PS

Tesseract is the Space gem

Your TV should be able to map this movie 1 to 1 so that only makes sense.