Audio Doesn't Play in Certain MKV's

[props000]

I ripped my wife's box set of Sex and the City DVD's a when I first got the BB after the preorder (no judgements ;)). She just went to play one and there is no audio. I don't know weather it never played the audio or it's a new phenomena. It plays fine when I play it on the computer using VLC. BB is connected via HDMI to the receiver.

Here's the media info from a file that has no audio:
General
Unique ID : 170639519453980392135588442267782277288 (0x805FF9DC86F1C88588009ECABCB8E8A8)
Complete name : X:\Sex and the City Season 1\Sex.and.the.City.S01E01.mkv
Format : Matroska
File size : 239 MiB
Duration : 26mn 46s
Overall bit rate : 1 249 Kbps
Movie name : SEXCITY_VOL1.Title1.DVDRip
Encoded date : UTC 2010-12-05 22:58:56
Writing application : DVDFab
Writing library : libebml v0.7.8 + libmatroska v0.8.1

Video
ID : 13
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 26mn 46s
Width : 600 pixels
Height : 452 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Writing library : x264 core
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 : 14
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 26mn 46s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy




Here's mediainfo from file that does have audio:
General
Unique ID : 42482879429253962617162692707370701591 (0x1FF5E7AB913AB62712732E6370A49317)
Complete name : X:\Sex and the City Season 6\Sex.and.the.City.S06E01.mkv
Format : Matroska
File size : 431 MiB
Duration : 29mn 15s
Overall bit rate : 2 061 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 : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 10 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 29mn 15s
Bit rate : 1 636 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Original display aspect ratio : 4:3
Frame rate mode : Variable
Frame rate : 23.976 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.197
Stream size : 342 MiB (79%)
Writing library : x264 core 112
Encoding settings : cabac=1 / ref=11 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / constrained_intra=0 / bframes=5 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=20.0 / 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 : 29mn 15s
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 : 80.4 MiB (19%)
Language : English

Text
ID : 3
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : English

Any ideas what's wrong? Is there a Jira bug I couldn't find?

[Prospero424]

Seems like it may have to do with it being AAC audio, but the Boxee Box should be able to decode this format just fine. Are there any other files you have with AAC audio (most .mp4 and .mov files) that you can test it with?

Also, have you updated to version 1.1.1 (not just the latest major revisions: 1.1). There were some audio decoding issues addressed in that minor release. How to manually update (http://boxee.zendesk.com/entries/328816-how-do-i-manually-update-the-boxee-software).

[props000]

I'm fully updated to 1.1.1. I've got a bunch of m4v files that have a 2 channel AAC track and the ones I've tested seem to play fine. This is a head scratcher. I'd hate to have to rip all those individual files again...what a pain.

It looks like the ones I encoded using your presets in Handbrake Prospero work fine...thanks for those by the way.

[Prospero424]

Do you have any others that were ripped the same way with DVDFab that you can test? I'm wondering if it has something to do with the way that software authors to .mkv with an AAC audio stream.

[props000]

I stopped converting with DVD Fab and just use it to strip out copy protection and then convert with handbrake. I don't have anything but those 40ish episodes of Sex and the City that won't work.

Oh well...I guess I go back and rerip.