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The TV is already rolling off the top end and TVs vary in how they do this, with some TVs even letting the user choose the rolloff point. You also don’t want to have STM engaged simultaneously on the TV and the source device, because you run into the same issue. Static tone mapping is a bit different in that the tone mapping has a fixed rolloff based on the maximum luminance data of the content. If you have DTM enabled on both the player and the TV, then the TV is making questionable guesses based on the already questionable guesses of the source. While DTM processing can be very good (with Panasonic’s UHD players being standouts), it’s still imperfect and can routinely make poor choices as Vincent showed in the video. With dynamic tone mapping, unless the source is sending dynamic meta data like with DV or HDR10+, the device (source or TV) has to guess the best tone mapping curve to use on a given scene. Otherwise you get a less accurate picture.Īlso keep in mind that there’s a difference between dynamic tone mapping and static tone mapping. It’s best to let either TV or the source device do it, but not both. This will obviously affect the outcome when comparing the two formats.Ĭlick to shrink.You don’t want to tone map twice.
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In fact, the LG CX series lets you control how the TV performs the static tone mapping (or lets you disable it entirely). I should also mention that how HDR10 is tonemapped can vary significantly depending on how the TV is calibrated and adjusted. One of the sources is clearly doing something it shouldn't and I don't think that should be ignored.ĭV may have an advantage over HDR10 when it comes to tone mapping, but it can't always compensate for a bit-starved source that may also being screwing with the content. That stuck out like a sore thumb and is something you don't have to have your face pressed up against the screen to see. I also have no idea why he brushed off the difference in color between the two sources. Vincent even undermined his own argument as he continually mentioned seeing more banding and other compression artifacts throughout the video.
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The significantly lower bitrate of streaming is going to make things worse here. With the right content and/or a poor encode, even a high bitrate UHD Blu-ray can show compression artifacts. In regards to the main topic, I don't think the "average person" is the best judge of video quality. Streaming has come a long way visually, but it's still way behind on the sound front. It's a very underrated part of the experience. I actually still watch LaserDiscs occasionally due in part to the sound quality.