Audio Sync issues with Samsung HT-E5550 when playing some MKV files

[Venorsh]

Hello everybody

I have a question concerning the playback of MKV files on my HT-E5550 Blu Ray player. When watching some mkv's I have issues with audio synchronization, namely that the playback is out of sync right from the start (sometimes getting progressively worse). I watch the files via a USB stick directly inserted into the Blu Ray player. When I use the same USB stick and plug it into the TV itself (also a Samsung), the playback is perfect.


Moreover, I also see this issue only coming up with some mkv's and not with others. I used MediaInfo to get some more information about the files and here is the two files (see for the output underneath). The main difference I see is that one file has AC-3 Audio with 2 channels and the other one AC-3 with 6 channels. Unfortunately, I am new to all of this and I was wondering whether anybody could give me some advice on what the issue might be and how to solve it. Thank you very much for your help!


Output MediaInfo:


File 1 (which has the audio issues):
Format : Matroska
Format version : Version 4 / Version 2
File size : 1.13 GiB
Duration : 1h 0mn
Overall bit rate : 2 696 Kbps
Encoded date : UTC 2013-09-09 03:41:42
Writing application : mkvmerge v6.0.0 ('Coming Up For Air') built on Jan 20 2013 10:28:01
Writing library : libebml v1.3.0 + libmatroska v1.4.0


Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 0mn
Bit rate : 2 258 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.102
Stream size : 972 MiB (84%)
Writing library : x264 core 138 r2358 9e941d1
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=18.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language : English
Default : Yes
Forced : No
Matrix coefficients : BT.709


Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 1h 0mn
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 165 MiB (14%)
Default : Yes
Forced : No





File 2 (without the issues):
Format : Matroska
Format version : Version 2
File size : 1.27 GiB
Duration : 45mn 58s
Overall bit rate : 3 970 Kbps
Writing application : x264.exe
Writing library : mkv2rls x264-tv version built on 2011. febr. 17


Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 45mn 58s
Bit rate : 3 507 Kbps
Width : 1 278 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.159
Stream size : 1.13 GiB (88%)
Writing library : x264 core 138 r2358 9e941d1
Encoding settings : cabac=1 / ref=5 / deblock=1:-2:-2 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.05:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=18.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.10
Language : English
Default : Yes
Forced : No


Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 45mn 58s
Bit rate mode : Constant
Bit rate : 384 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 : 126 MiB (10%)
Language : English
Default : Yes
Forced : No

[Krispy Kritter]

Assuming the files play correctly on another device, it's typically a byproduct of the files exceeding the specs of the player.

If you can find the supported file specs for the player, compare the files to what is supported. Things to watch are the supported codecs (both video and audio), resolution, and bitrate (both audio and video).

[Venorsh]

Thank you for the reply. I checked for the specifications and as far as I can see, none of the files exceeds the recommended specifications of the device. Even more so, the second file which is playing just fine, has an even higher bitrate than the first one. I really don't understand what the issue is. I was wondering, could it have anything to do with the USB stick and maybe I should use a different playback device? Then again, if that would be the issue, it should occur when playing over the TV or the Blu Ray player.