I have a problem with my new WD TV Live Hub. Many of my videos play slightly, slightly too fast (both video and audio are faster but stay in sync). It’s so annoying it makes watching the videos unbearable. Has anyone else had this problem or knows what I can do? My video settings is on HDMI (Auto) and I have the option “On” for video settings output to match file framerate. I would really appreciate some help with this, since I’m quite at a loss what to do…
Thanks in advance for any feedback
As I mentioned in the other post,
Please post the full TEXT output of MEDIAINFO for such a file.
Here’s my info:
Format : Matroska
Format version : Version 2
File size : 1.92 GiB
Duration : 1h 24mn
Overall bit rate : 3 242 Kbps
Writing application : HandBrake 0.9.5
Writing library : libmkv 0.6.4.1
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 24mn
Bit rate : 2 840 Kbps
Width : 720 pixels
Height : 436 pixels
Display aspect ratio : 2.35:1
Frame rate mode : Variable
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.362
Stream size : 1.62 GiB (84%)
Writing library : x264 core 112
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=2 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=0 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=2840 / ratetol=1.0 / qcomp=0.60 / qpmin=3 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language : English
Color primaries : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M
Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 1h 24mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 272 MiB (14%)
Language : English
Text #1
ID : 3
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : Swedish
Text #2
ID : 4
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : Norwegian
Text #3
ID : 5
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : Danish
Text #4
ID : 6
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : Finnish
Text #5
ID : 7
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : Icelandic
Menu
00:00:00.000 : Chapter 1
00:05:44.520 : Chapter 2
00:12:44.280 : Chapter 3
00:22:04.000 : Chapter 4
00:29:09.400 : Chapter 5
00:36:18.000 : Chapter 6
00:43:06.400 : Chapter 7
00:49:59.760 : Chapter 8
00:54:24.080 : Chapter 9
01:00:50.920 : Chapter 10
01:07:59.160 : Chapter 11
01:19:31.160 : Chapter 12
01:24:56.120 : Chapter 13
Couple of things.
1> Since you have MATCH FRAMERATE enabled, does your TV actually switch to 25fps when viewing this example file?
2> The FRAMERATE is marked as VARIABLE / 25fps. Basically, that means the header indicates 25fps, but that it can change DURING the stream. The WD’s don’t seem to manage variable framerate too well in some cases.
You MIGHT try re-encoding again, but in HANDBRAKE, set the Frame Rate to a specific rate (like 25fps, or whatever the source was.)
Thanks for the advice! I don’t think that I’ve ever seen my TV switch to 25Hz though, only 24 Hz sometimes (I think mostly when I watch Blu-rays). Does it have something to do with that? I live in Sweden if that makes any difference and the original video is american. Does this has something to do with PAL and NTSC? (just wild guess, I’ve read some about them but I don’t really know the difference or how they are related to each other, I’m kinda new to this kind of stuff)
Ahhh. That explains it, and I am assuming YOU are not the one who encoded it.
Many times folks will re-encode 24fps into PAL format by just speeding up the video instead of re-interpolating the frames.
It yields better quality video, because frames aren’t completely re-rendered, but what happens is that 25 frames are displayed per second instead of 24. That means it’s about 4 to 5% FASTER, and the audio pitch is increased by a semi-tone (an A becomes a B).
The reverse is true, too… Some people will take PAL content and just change it to 24fps, so when it’s viewed here in NTSC-land, the playback is 5% slower, and pitch is REDUCED by a semi-tone (an A becomes an A-Flat. 
)
Unless you have the original source and chose to re-mux it, there’s nothing you can do.
Ah, nice to know that just the video-file is the problem and not the player. And you’re right I didn’t encode the file myself.
Big thanks for the info and all the help, really nice of you! :)
To be honest with you, I’m not sure that it’s NOT the player. Since I’m in NTSC-land, everything I’ve watched plays at native framerate (30 or 24)
It may be the WD that is doing the speed up.
Perhaps some of our PAL users here can comment further?
| Forums | News and Announcements | Register | Help | Forum Guidelines |
Copyright © 2021 Western Digital Technologies, Inc. All rights
reserved.
|
Trademarks
|
Privacy
|
Community Terms of Service
|
Site Terms of Use
|
Copyright
|
Contact WD
|