Audio problems


#1

Hi guys,

I’m running into a problem with my WD live. It won’t play audio from certain movies I add, I added 10 movies yesterday, it will play the audio for some of them, but other movies just don’t have audio.

The movies I added have a mixture of AC3 and DTS, but I have multiple movies with AC3 & DTS which all play fine.

When I test the files on my computer they all have sound and I have the latest firmware installed.

Anyone got an idea where the problem could be?


#2

Post the text output of MediaInfo for a file that doesn’t work.


#3

Here you go

* just to let you know, I pass the movies through mkvmerge first to mux the subtitles. But I do this with all my movies so I don’t think this is the problem.


General
Complete name                    : /Users/my name/Movies/Godzilla.mkv
Format                           : Matroska
File size                        : 6.55 GiB
Duration                         : 2h 18mn
Overall bit rate                 : 6 765 Kbps
Encoded date                     : UTC 2010-07-08 18:33:15
Writing application              : mkvmerge v4.0.0 (‘The Stars were mine’) built on Jun 21 2010 15:47:50
Writing library                  : libebml v1.0.0 + libmatroska v1.0.0

Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : High@L4.1
Format settings, CABAC           : Yes
Format settings, ReFrames        : 5 frames
Muxing mode                      : Container profile=Unknown@4.1
Codec ID                         : V_MPEG4/ISO/AVC
Duration                         : 2h 18mn
Bit rate                         : 5 257 Kbps
Width                            : 1 280 pixels
Height                           : 536 pixels
Display aspect ratio             : 2.35:1
Frame rate                       : 23.976 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.320
Stream size                      : 4.96 GiB (76%)
Writing library                  : x264 core 78 r1310 ec46ace
Encoding settings                : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=7 / psy=1 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=6 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=3 / b_pyramid=0 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=5257 / 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                           : DTS
Format/Info                      : Digital Theater Systems
Codec ID                         : A_DTS
Duration                         : 2h 18mn
Bit rate mode                    : Constant
Bit rate                         : 1 510 Kbps
Channel(s)                       : 6 channels
Channel positions                : Front: L C R, Side: L R, LFE
Sampling rate                    : 48.0 KHz
Bit depth                        : 24 bits
Stream size                      : 1.46 GiB (22%)
Title                            : DTS 1509 Kbps

Text
ID                               : 3
Format                           : UTF-8
Codec ID                         : S_TEXT/UTF8
Codec ID/Info                    : UTF-8 Plain Text


#4

The new mkvmerge will have this problem with audio – use an older version of it and you should be fine (or uncheck the compressed audio header in the options when you mux).

(See http://community.wdc.com/t5/General-Discussions/Problem-with-WD-TV-live-and-mkv-files-that-have-been-muxed-with/td-p/32142 )


#5

As far as I can see the OP is using the old MKVmerge.


#6

June 21st is the old version?  Wow, I guess the new version came out *very* quickly after that (like, um, a week or so?)


#7
  • 03 Jul 2010: Released v4.1.1.
  • 01 Jul 2010: Released v4.1.0.
  • 05 Jun 2010: Released v4.0.0.

So, the header compression started July 1.  :)


#8

And I’m still using the February 12th version – works fine for me .