MKV file no audio

[gsalamon]

Helo,

I have an MKV file, which plays without sound. It plays correctly with sound on my PC (with VLC). I have subtitles and I can change it, but I cannot change audio channel and there is no audio at all. Any idea, why? Here is the mediainfo file:

Complete name : Steamboy.mkv
Format : Matroska
File size : 3.77 GiB
Duration : 2h 6mn
Overall bit rate : 4 277 Kbps
Encoded date : UTC 2008-02-17 09:43:44
Writing application : mkvmerge v2.1.0 ('Another Place To Fall') built on Aug 19 2007 13:40:07
Writing library : libebml v0.7.7 + libmatroska v0.8.1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 16 frames
Muxing mode : Container profile=Unknown@5.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 2h 6mn
Nominal bit rate : 2 625 Kbps
Width : 1 920 pixels
Height : 1 040 pixels
Display aspect ratio : 16/9
Frame rate : 23.976 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.055
Title : BD 1920x1040 x264
Writing library : x264 core 56
Encoding settings : cabac=1 / ref=16 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / fpel_cmp=sad / subme=7 / me-prepass=0 / brdo=1 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=0 / threads=1 / nr=0 / decimate=0 / mbaff=0 / bframes=16 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=3 / wpredb=1 / bime=1 / keyint=200 / keyint_min=20 / scenecut=40 / rc=2pass / bitrate=2625 / ratetol=1.0 / rceq='blurCplx^(1-qComp)' / qcomp=0.60 / qpmin=15 / qpmax=25 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.30 / pb_ratio=1.25

Audio #1
ID : 2
Format : FLAC
Format/Info : Free Lossless Audio Codec
Codec ID : A_FLAC
Duration : 2h 6mn
Bit rate mode : Variable
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Resolution : 16 bits
Title : FLAC 2.0 16bit 48kHz
Writing library : libFLAC 1.1.4 (UTC 2007-02-13)
Language : Japanese

Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 2h 6mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Surround: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 404 MiB (10%)
Title : Dolby Digital 5.1
Language : Japanese

Audio #3
ID : 4
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 2h 6mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Surround: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 404 MiB (10%)
Title : Dolby Digital 5.1
Language : English

Text #1
ID : 5
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : Arial ASSA
Language : English

Text #2
ID : 6
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : Arial ASSA
Language : French

Text #3
ID : 7
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : Arial ASSA
Language : Spanish

Text #4
ID : 8
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Title : Arial ASSA
Language : Portuguese

[cheaper_popcorn]

FLAC, which is the #1 audio track is not supported as embedded audio codec, only as codec in audio-only files.

Presumably if you just remove the FLAC track from the MKV, everything will work.

Download mkvtoolnix which contains mkvmergeGUI, and use mkvmergeGUI to remove the FLAC soundtrack, then remux the file and try again.

[Willem53]

Try pressing the audio button on the remote to switch to the next audio instance, don't know if this will work for this specific movie but I use it to swap between the director talking and the actual movie audio.

[gsalamon]

It indeed helped, thanks. But shouldn't I be able to change audio channels even if the first audio codec is not supported? Or even better PCH should change to the second one by default if the first is not supported.

(07-11-2009 03:56 PM)cheaper_popcorn Wrote:  FLAC, which is the #1 audio track is not supported as embedded audio codec, only as codec in audio-only files.

Presumably if you just remove the FLAC track from the MKV, everything will work.

Download mkvtoolnix which contains mkvmergeGUI, and use mkvmergeGUI to remove the FLAC soundtrack, then remux the file and try again.

[spawn]

Quote:But shouldn't I be able to change audio channels even if the first audio codec is not supported?

I suppose you should, and usually you can switch between audio tracks on the fly using the audio button. I dont know why you cant for this one

Quote:Or even better PCH should change to the second one by default if the first is not supported.

Well, sometimes we just have to do things ourselves, but the idea isnt bad

But overall you should feel happy the file will even play at all, since its way out of spec

Format profile : High@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 16 frames

[Specter]

If this bothers you, you can run your file through the latest version of MKVmerge and set the AC3 track as track 1 and the FLAC track as track 2.