No sound playing .MKV files via Mediaplayer

hello, i have just one mkv, as well i have the same issue with it (using the hdmi audio or the scart connection for the av amplifier)

do you mean press the audio button during the play?
 
in the a/v setup i have:
dolby digital defualt yes
dolby digital downmix yes

during the play , pressing audio:
dolby digital downmix on
channel stereo
and a bar that say: 0 dts audio english running

(i'm really a newbie about the digital audio out, something is wrong?)
 
I've played with success a MKV (720p) with DTS audio with HDMI and SPIDF optical connection and the AV amplifier in my sign and Duo box:

Code:
Generale
UniqueID/String                  : 205415055996838805109900480245292261431 (0x9A89803050A79A8A9EA230E3D49AE037)
Nome completo                    : Death.Race.Unrated.2008.BDRtL.720p.x264.DTS.iTA.AAC.eNG-Arlong.mkv
Formato                          : Matroska
Dimensione                       : 4,37 GiB
Durata                           : 1h 50min
BitRate totale                   : 5 660 Kbps
Film                             : Death Race [Unrated]
Data di codifica                 : UTC 2009-03-01 12:18:38
Creato con                       : mkvmerge v2.4.2 ('Oh My God') built on Jan 18 2009 17:30:28
Compressore                      : libebml v0.7.7 + libmatroska v0.8.1

Video
ID                               : 1
Formato                          : AVC
Formato/Informazioni             : Advanced Video Codec
Profilo del formato              : High@L4.1
Impostazioni del formato, CABAC  : Si 
Impostazioni del formato, ReFram : 5 fotogrammi
Codec ID                         : V_MPEG4/ISO/AVC
Durata                           : 1h 50min
BitRate nominale                 : 4 668 Kbps
Larghezza                        : 1 280 pixel
Altezza                          : 544 pixel
AspectRatio                      : 2,35:1
FrameRate                        : 23,976 fps
ColorSpace                       : YUV
ChromaSubsampling                : 4:2:0
BitDepth/String                  : 8 bits
Tipo di scansione                : Progressivo
Bit/(Pixel*Frame)                : 0.280
Titolo                           : Death Race
Compressore                      : x264 core 66 r1114 a933a3e
Impostazioni compressione        : cabac=1 / ref=5 / deblock=1:-2:-1 / analyse=0x3:0x133 / me=umh / subme=9 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=3 / nr=0 / decimate=1 / mbaff=0 / bframes=5 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / keyint=240 / keyint_min=24 / scenecut=40(pre) / rc=2pass / bitrate=4668 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=40000 / vbv_bufsize=40000 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.00
Lingua                           : Inglese

Audio #1
ID                               : 2
Formato                          : DTS
Formato/Informazioni             : Digital Theater Systems
Codec ID                         : A_DTS
Durata                           : 1h 50min
Modalità                         : Costante
BitRate                          : 755 Kbps
Canali                           : 6 canali
Posizione dei canali             : Front: L C R, Side: L R, LFE
SamplingRate                     : 48,0 KHz
BitDepth/String                  : 24 bits
Dimensione della traccia         : 597 Mb (13%)
Titolo                           : Italiano 5.1
Lingua                           : Italiano

Audio #2
ID                               : 3
Formato                          : AAC
Formato/Informazioni             : Advanced Audio Codec
Profilo del formato              : HE-AAC / LC
Codec ID                         : A_AAC
Durata                           : 1h 50min
Canali                           : 6 canali
Posizione dei canali             : Front: L C R, Side: L R, LFE
SamplingRate                     : 48,0 KHz / 24,0 KHz
Titolo                           : English 5.1
Lingua                           : Inglese

Testo #1
ID                               : 4
Formato                          : UTF-8
Codec ID                         : S_TEXT/UTF8
Codec ID/Informazioni            : UTF-8 Plain Text
Titolo                           : Italiano (Forced)
Lingua                           : Italiano

Testo #2
ID                               : 5
Formato                          : UTF-8
Codec ID                         : S_TEXT/UTF8
Codec ID/Informazioni            : UTF-8 Plain Text
Titolo                           : Italiano (Normally Hearing)
Lingua                           : Italiano

Testo #3
ID                               : 6
Formato                          : UTF-8
Codec ID                         : S_TEXT/UTF8
Codec ID/Informazioni            : UTF-8 Plain Text
Titolo                           : English (Normally Hearing)
Lingua                           : Inglese

Menù
00:00:00.000                     : en:Killer Competition
00:04:10.584                     : en:Honest Living (Main Titles)
00:12:15.068                     : en:Behind Bars
00:16:05.339                     : en:Never a Dull Day
00:19:26.499                     : en:Keep the Legend Alive
00:24:13.786                     : en:Getting Acquainted
00:33:04.441                     : en:Stage 1
00:37:19.279                     : en:Start Transmission
00:43:36.447                     : en:Activate Swords & Shields
00:52:14.173                     : en:Play My Game
00:59:36.698                     : en:Looking for Me?
01:03:48.950                     : en:Stage 2
01:07:46.104                     : en:On the Offense
01:12:45.444                     : en:Release the Dreadnought
01:20:16.645                     : en:Stage 3
01:24:47.457                     : en:A Little Inspiration
01:28:38.271                     : en:It's Party Time
01:33:25.642                     : en:Off Track
01:41:49.103                     : en:All That Matters
01:44:33.392                     : en:End Titles
 
Thanks for moving my thread Mito - audioset look right - in the audio menu it looks like the soundtrack is present.

And yes it only aplies to MKV files - tried to play it on my PC with VLC - that worked fine

Tried to play it on HDMI and Scart - no sound on both - will try to get the sound from my optical and se if that works.

I've got a UTF-8 subtitle channel that works

Thanks for your help so far....
 
Thanks for moving my thread Mito - audioset look right - in the audio menu it looks like the soundtrack is present.

And yes it only aplies to MKV files - tried to play it on my PC with VLC - that worked fine

Tried to play it on HDMI and Scart - no sound on both - will try to get the sound from my optical and se if that works.

I've got a UTF-8 subtitle channel that works

Thanks for your help so far....
Sometimes it happends also to me, i don't know why, but i have to reboot box to hear audio of my .mkv files.
Did you try to reboot?
 
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