MKV audio problem


#1

Hi,

I just bought two units of WD Live Plus.  Both are set to audio => stereo and I am using a HDMI cable to connect them to the TVs.  However, I am not getting audio on some mkv files.  When I click on option and look at the audio stream - it says AC3 but no audio from the tv at all.  The same file plays fine on my computer and on my popcorn with similar settings. 

Is this a bug in the firmware?  Please let me know.  I am quite bummed with this problem and may need to return the units if this cannot be solved.  Thanks in advance.

– def1ant.


#2

Post the details (in text form) of these files using mediainfo (freeware).

It is possible that they were muxed using the latest copy of MKVmerge which stopped some audio from playing on the WDTV. If that is the case you can easily remux them using Version 4.0.0 of MKVmerge. This is quick and easy. You can use the current version of MKVmerge but that involves turning off compression in both video and audio tracks.

Link to MKVmerge V4.0.0 (PC version)

http://www.bunkus.org/videotools/mkvtoolnix/win32/mkvtoolnix-unicode-4.0.0-setup.exe


#3

Here are the details from one of the files that doenst work - I will try your suggestion.  Thanks.

General
Complete name                    : File.mkv
Format                           : Matroska
File size                        : 747 MiB
Duration                         : 28mn 55s
Overall bit rate                 : 3 609 Kbps
Writing application              : x264.exe
Writing library                  : mkv2rls x264-tv version built on 2010 jul 11

Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : High@L3.1
Format settings, CABAC           : Yes
Format settings, ReFrames        : 3 frames
Muxing mode                      : Container profile=Unknown@3.1
Codec ID                         : V_MPEG4/ISO/AVC
Duration                         : 28mn 54s
Bit rate                         : 3 215 Kbps
Width                            : 1 280 pixels
Height                           : 720 pixels
Display aspect ratio             : 16:9
Frame rate                       : 23.976 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.145
Stream size                      : 652 MiB (87%)
Writing library                  : x264 core 88 r1471 1144615
Encoding settings                : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=20 / sliced_threads=0 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=3 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=1 / wpredb=1 / wpredp=0 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=3215 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00

Audio
ID                               : 2
Format                           : AC-3
Format/Info                      : Audio Coding 3
Mode extension                   : CM (complete main)
Codec ID                         : A_AC3
Duration                         : 28mn 55s
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
Stream size                      : 79.4 MiB (11%)
Title                            : English
Language                         : English


#4

richUK - your suggestion worked.  Does this mean WD will release a patch that fixes this?  Am I being too hopeful? :smiley:


#5

They do indeed have a fix for this coming – Real Soon Now.


#6

Having the same problem. Tried using a troubleshooting guide somewhere on the site but it killed the video. Most likely because I have the latest version and it didnt have that step. Hopefully this should work now.

Good forums these for a great peice of kit. Only got mine a week ago.