Audio is breaking in MKV file

[hadyhosny]

Hi,

I have d/l an mkv file with dual audio, but the first track audio is not prodicuing any sound, second track is working fine. I tried it from my Windows Vista PC, both audios are fine, i also remuxed it using MKVToolnix, and then the first audio track started to produce breaking sound. What is wrong?

information from media info below:

General
Complete name : C:\Downloads\Cars.2006.720p.BluRay.DTS.x264[censored].Dual-Audio.mkv
Format : Matroska
File size : 4.52 GiB
Duration : 1h 56mn
Overall bit rate : 5 549 Kbps
Encoded date : UTC 2009-11-17 05:20:32
Writing application : mkvmerge v2.9.7 ('Tenderness') built on Jul 1 2009 18:43:35
Writing library : libebml v0.7.7 + libmatroska v0.8.1
Cover : Yes / Yes / Yes

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 11 frames
Muxing mode : Container profile=Unknown@5.1
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 56mn
Bit rate : 3 737 Kbps
Nominal bit rate : 3 850 Kbps
Width : 1 280 pixels
Height : 536 pixels
Display aspect ratio : 2.35:1
Frame rate : 23.976 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.227
Stream size : 3.04 GiB (67%)
Writing library : x264 core 56 svn-680
Encoding settings : cabac=1 / ref=8 / deblock=1:-3:-3 / analyse=0x3:0x133 / me=umh / subme=7 / brdo=1 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=2 / deadzone=6,6 / chroma_qp_offset=0 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / bime=1 / keyint=250 / keyint_min=25 / scenecut=40(pre) / rc=2pass / bitrate=3850 / ratetol=1.0 / rceq='blurCplx^(1-qComp)' / qcomp=0.60 / qpmin=6 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:0.7:12.0
Language : English

Audio #1
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Format profile : Dolby Digital
Codec ID : A_AC3
Duration : 1h 56mn
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Stream size : 160 MiB (3%)
Title : AC3 2.1 @ 192Kbps
Language : Arabic

Audio #2
ID : 3
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 56mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Surround: L R, LFE
Sampling rate : 48.0 KHz
Resolution : 24 bits
Stream size : 1.23 GiB (27%)
Title : DTS 5.1 @ 1.5Mbps
Language : English

Text #1
ID : 4
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Language : English

Text #2
ID : 5
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Language : French

Text #3
ID : 6
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Language : Arabic

Text #4
ID : 7
Format : VobSub
Codec ID : S_VOBSUB
Codec ID/Info : The same subtitle format used on DVDs
Language : Arabic

[hadyhosny]

to complete the picture, i am using HDMI to an Onkyo 606 receiver then HDMI to LG 42" LCD.

The funny thing is that i tried to extract the first audio (AC3 2 channels arabic) in a a separate audio file, and it works great in the C-200.....

[hadyhosny]

Update:

When i demuxed the audio stream, it's duration is less than the video stream, which might mean that while muxing, the MKV file is instructed to do a stretch to match the sound with the video, does this make sense? May be the PCH can not handle proporly this time stretch....

any thoughts?

Hady