I recently got the Philips 55PUS7363, because of the 4K and Android TV aspect. However, Plex has not been working properly with 4K content.
Problem: When a 4K video starts, everything is working perfectly. However, after a few seconds, the video will skip a few frames forward - but the audio will “stay”. The result being an audio track that will be desync by 0.5s or 1s (sometimes even more!).
Everything is Direct Play, nothing is transcoding.
Everything is also running on my wired network.
Funny thing is, if I force a transcode to any quality, the audio and video will be in sync all the time. But obviously this is not optimal for many reasons.
Everything below 4K quality works just fine.
Mediainfo of the most recent watched 4K movie.
Format : Matroska
Format version : Version 4 / Version 2
File size : 19.4 GiB
Duration : 2 h 33 min
Overall bit rate : 18.1 Mb/s
Encoded date : UTC 2018-01-01 17:17:19
Writing application : mkvmerge v19.0.0 ('Brave Captain') 64-bit
Writing library : libebml v1.3.5 + libmatroska v1.4.8
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2 h 33 min
Bit rate : 14.2 Mb/s
Width : 3 840 pixels
Height : 1 600 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.096
Stream size : 15.2 GiB (78%)
Writing library : x265 2.6+22-ff02513b92c0:[Windows][GCC 6.3.0][64 bit] 10bit
Encoding settings : cpuid=1173503 / frame-threads=4 / numa-pools=20 / wpp / no-pmode / no-pme / no-psnr / no-ssim / log-level=2 / input-csp=1 / input-res=3840x1600 / interlace=0 / total-frames=220837 / level-idc=51 / high-tier=1 / uhd-bd=0 / ref=4 / no-allow-non-conformance / repeat-headers / annexb / aud / hrd / info / hash=0 / no-temporal-layers / no-open-gop / min-keyint=1 / keyint=24 / gop-lookahead=0 / bframes=4 / b-adapt=2 / b-pyramid / bframe-bias=0 / rc-lookahead=25 / lookahead-slices=4 / scenecut=40 / radl=0 / no-intra-refresh / ctu=64 / min-cu-size=8 / rect / no-amp / max-tu-size=32 / tu-inter-depth=1 / tu-intra-depth=1 / limit-tu=0 / rdoq-level=2 / dynamic-rd=0.00 / no-ssim-rd / signhide / no-tskip / nr-intra=0 / nr-inter=0 / no-constrained-intra / no-strong-intra-smoothing / max-merge=3 / limit-refs=3 / limit-modes / me=3 / subme=3 / merange=57 / temporal-mvp / weightp / no-weightb / no-analyze-src-pics / deblock=-3:-3 / no-sao / no-sao-non-deblock / rd=4 / no-early-skip / rskip / no-fast-intra / no-tskip-fast / no-cu-lossless / no-b-intra / no-splitrd-skip / rdpenalty=0 / psy-rd=2.00 / psy-rdoq=1.00 / no-rd-refine / no-lossless / cbqpoffs=0 / crqpoffs=0 / rc=crf / crf=17.0 / qcomp=0.60 / qpstep=4 / stats-write=0 / stats-read=0 / vbv-maxrate=160000 / vbv-bufsize=160000 / vbv-init=0.9 / crf-max=0.0 / crf-min=0.0 / ipratio=1.40 / pbratio=1.30 / aq-mode=1 / aq-strength=1.00 / cutree / zone-count=0 / no-strict-cbr / qg-size=32 / no-rc-grain / qpmax=69 / qpmin=0 / no-const-vbv / sar=1 / overscan=0 / videoformat=5 / range=0 / colorprim=9 / transfer=16 / colormatrix=9 / chromaloc=1 / chromaloc-top=2 / chromaloc-bottom=2 / display-window=0 / master-display=G(13250,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(40000000,50) / max-cll=500,200 / min-luma=0 / max-luma=1023 / log2-max-poc-lsb=8 / vui-timing-info / vui-hrd-info / slices=1 / no-opt-qp-pps / no-opt-ref-list-length-pps / no-multi-pass-opt-rps / scenecut-bias=0.05 / no-opt-cu-delta-qp / no-aq-motion / hdr / hdr-opt / no-dhdr10-opt / analysis-save=(null) / analysis-load=(null) / analysis-reuse-level=5 / scale-factor=0 / refine-intra=0 / refine-inter=0 / refine-mv=0 / no-limit-sao / ctu-info=0 / no-lowpass-dct / refine-mv-type=0 / copy-pic=1
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color pri : Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level : 500 cd/m2
Maximum Frame-Average Light : 200 cd/m2
Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : X / MA / Core
Codec ID : A_DTS
Duration : 2 h 33 min
Bit rate mode : Variable / Variable / Constant
Bit rate : 3 689 kb/s / 3 689 kb/s / 1 509 kb/s
Channel(s) : Object Based / 8 channels / 6 channels
Channel positions : Object Based / Front: L C R, Side: L R, Back: L R, LFE / Front: L C R, Side: L R, LFE
Sampling rate : / 48.0 kHz / 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : / 24 bits / 24 bits
Compression mode : / Lossless / Lossy
Stream size : 3.96 GiB (20%)
Language : English
Default : Yes
Forced : No
Text #1
ID : 3
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 28.1 kb/s
Count of elements : 3042
Stream size : 30.8 MiB (0%)
Title : SDH
Language : English
Default : No
Forced : No
Text #2
ID : 4
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 27.5 kb/s
Count of elements : 2832
Stream size : 30.1 MiB (0%)
Language : French
Default : No
Forced : No
Text #3
ID : 5
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 33.1 kb/s
Count of elements : 3228
Stream size : 36.3 MiB (0%)
Language : German
Default : No
Forced : No
Text #4
ID : 6
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 27.4 kb/s
Count of elements : 3092
Stream size : 30.0 MiB (0%)
Language : Italian
Default : No
Forced : No
Text #5
ID : 7
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 25.6 kb/s
Count of elements : 3132
Stream size : 28.0 MiB (0%)
Language : Spanish
Default : No
Forced : No
Text #6
ID : 8
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 21.4 kb/s
Count of elements : 2250
Stream size : 23.5 MiB (0%)
Language : Dutch
Default : No
Forced : No
Text #7
ID : 9
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 22.4 kb/s
Count of elements : 2936
Stream size : 24.5 MiB (0%)
Language : Chinese
Default : No
Forced : No
Text #8
ID : 10
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 21.7 kb/s
Count of elements : 2894
Stream size : 23.7 MiB (0%)
Language : Chinese
Default : No
Forced : No
Text #9
ID : 11
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 15.6 kb/s
Count of elements : 2872
Stream size : 17.1 MiB (0%)
Language : Korean
Default : No
Forced : No
Text #10
ID : 12
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 24.3 kb/s
Count of elements : 2900
Stream size : 26.6 MiB (0%)
Language : Spanish
Default : No
Forced : No
Text #11
ID : 13
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 33 min
Bit rate : 26.0 kb/s
Count of elements : 2896
Stream size : 28.4 MiB (0%)
Language : Portuguese
Default : No
Forced : No
Text #12
ID : 14
Format : PGS
