Audio sync Problems in mkv

[#2]

Hi There : )

I keep getting sync issuse with particular rips. It seems to be audio related. I've got one clip that refuses to sync in HE -ACC, Vorbis and MP3. It only works with the original AC3. May be this is Dvd2Avi miss reporting the delay , but it behaves as I would expect with the new verision and the old V 1.76 (0msec with 1.77.3dg and -80msec with 1.76) Whats more the audio gets more out of sync towards the end. I have to set the delay to arround -355msec. In MPC to get it right.

Any thoughts?

[ChristianHJW]

Have you checked playback on a 2nd PC, to be sure this is not playback related ?

[jimmy basushi]

Originally posted by #2
Whats more the audio gets more out of sync towards the end.

might be a problem with the sound encoding, how exactly are you encoding the audio?

[#2]

Definatly a playback issue. On the same PC in win 2k ac3 and mp4/acc needed -350ms, mp3 needed -1150ms. Which is completely different from xp. This has really got me. The only thing that I can think of is that it could be a direct show issue. On XP ac3 is mapped to its own filter. This has only happend on 2 ont of 35 encodes useing the rv9/he-acc mkv format. I'll check to see if this happens in a xvid/mp3 avi encode.

Thanks for your sugestions
#2

Bsweet logs: MP3, Vorbis, ACC, MP4.

:\BSweet\BeSweet.exe -core( -input i:\DVDRips\1\1 AC3 T01 2_0ch 448Kbps DELAY 0ms.ac3 -output i:\DVDRips\1\1 AC3 T01 2_0ch 448Kbps DELAY 0ms.mp3 -logfilea J:\BSweet\BeSweet.log ) -azid( -c normal -L -3db ) -ota( -hybridgain ) -lame( -p --alt-preset standard )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : i:\DVDRips\1\1 AC3 T01 2_0ch 448Kbps DELAY 0ms.ac3
[00:00:00:000] | Output: i:\DVDRips\1\1 AC3 T01 2_0ch 448Kbps DELAY 0ms.mp3
[00:00:00:000] | Floating-Point Process: Yes
[00:00:00:000] | PostGain normalize to : 0.97
[00:00:00:000] +-------- AZID -------
[00:00:00:000] | Input Channels Mode: 2/0, Bitrate: 448kbps
[00:00:00:000] | Output Stereo mode: Dolby surround compatible
[00:00:00:000] | Total Gain: 10.000dB, Compression: Normal
[00:00:00:000] | LFE levels: To LR -3.0dB, To LFE 0.0dB
[00:00:00:000] | Center mix level: BSI
[00:00:00:000] | Surround mix level: BSI
[00:00:00:000] | Dialog normalization: Yes
[00:00:00:000] | Rear channels filtering: No
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +-------- LAME -------
[00:00:00:000] | 'alt standard' preset is used
[00:00:00:000] +---------------------
[00:04:11:584] Gain of 3.0dB had been asserted to file.
[00:04:11:584] Conversion Completed !
[00:04:11:584] Actual Avg. Bitrate : 195kbps
[00:01:29:000] <-- Transcoding Duration

--------------------------------------------------

BeSweet.exe -core( -input C:\01.ac3 -output C:\aacmachine.wav -logfilea J:\BSweet\BeSweet.log -2ch ) -profile( The AacMachine v0.51 ) -ota( -d 0 -sc 1024 -g 7.906dB )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : C:\01.ac3
[00:00:00:000] | Output: C:\aacmachine.wav
[00:00:00:000] | Floating-Point Process: No
[00:00:00:000] | Overall Track Gain: 7.906dB
[00:00:00:000] +-------- AZID -------
[00:00:00:000] | Input Channels Mode: 2/0, Bitrate: 448kbps
[00:00:00:000] | Output Stereo mode: Dolby surround compatible
[00:00:00:000] | Total Gain: 0.000dB, Compression: None
[00:00:00:000] | LFE levels: To LR -INF, To LFE 0.0dB
[00:00:00:000] | Center mix level: BSI
[00:00:00:000] | Surround mix level: BSI
[00:00:00:000] | Dialog normalization: No
[00:00:00:000] | Rear channels filtering: No
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +---------------------
[00:04:11:584] Conversion Completed !
[00:04:11:584] Actual Avg. Bitrate : 1536kbps
[00:00:06:000] <-- Transcoding Duration

------------------------------------------------------

BeSweet.exe -core( -input I:\DVDRips\1\1 AC3 T01 2_0ch 448Kbps DELAY 0ms.ac3 -output I:\DVDRips\1\1 AC3 T01 2_0ch stereo 448Kbps DELAY 0ms.ogg -logfilea J:\BSweet\BeSweet.log ) -azid( -L -3db -c normal -s stereo ) -ota( -hybridgain -d 0 ) -ogg( -q 0.300 ) -profile( The OagMachine v0.11 )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : I:\DVDRips\1\1 AC3 T01 2_0ch 448Kbps DELAY 0ms.ac3
[00:00:00:000] | Output: I:\DVDRips\1\1 AC3 T01 2_0ch stereo 448Kbps DELAY 0ms.ogg
[00:00:00:000] | Floating-Point Process: Yes
[00:00:00:000] | PostGain normalize to : 0.97
[00:00:00:000] +-------- AZID -------
[00:00:00:000] | Input Channels Mode: 2/0, Bitrate: 448kbps
[00:00:00:000] | Output Stereo mode: Stereo
[00:00:00:000] | Total Gain: 10.000dB, Compression: Normal
[00:00:00:000] | LFE levels: To LR -3.0dB, To LFE 0.0dB
[00:00:00:000] | Center mix level: BSI
[00:00:00:000] | Surround mix level: BSI
[00:00:00:000] | Dialog normalization: Yes
[00:00:00:000] | Rear channels filtering: No
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +-------- OGG --------
[00:00:00:000] | VBR Quality : 0.300
[00:00:00:000] +---------------------
[00:04:11:584] Gain of 3.3dB had been asserted to file.
[00:04:11:584] Conversion Completed !
[00:04:11:584] Actual Avg. Bitrate : 111kbps
[00:00:31:000] <-- Transcoding Duration

---------------------------------------------------------

BeSweet.exe -core( -input I:\DVDRips\1\3 AC3 T01 2_0ch 448Kbps DELAY 0ms.ac3 -output I:\DVDRips\1\3 AC3 T01 2_0ch 448Kbps DELAY 0ms.mp4 -logfilea J:\BSweet\BeSweet.log ) -azid( -g max -L -3db -c normal -s surround2 ) -ota( -d 0 ) -bsn( -2ch ) -profile( The OagMachine v0.11 )

[00:00:00:000] +------- BeSweet -----
[00:00:00:000] | Input : I:\DVDRips\1\3 AC3 T01 2_0ch 448Kbps DELAY 0ms.ac3
[00:00:00:000] | Output: I:\DVDRips\1\3 AC3 T01 2_0ch 448Kbps DELAY 0ms.mp4
[00:00:00:000] | Floating-Point Process: No
[00:00:00:000] +-------- AZID -------
[00:00:00:000] | Input Channels Mode: 2/0, Bitrate: 448kbps
[00:00:00:000] | Output Stereo mode: Dolby surround 2 compatible
[00:00:00:000] | Total Gain: 8.912dB, Compression: Normal
[00:00:00:000] | LFE levels: To LR -3.0dB, To LFE 0.0dB
[00:00:00:000] | Center mix level: BSI
[00:00:00:000] | Surround mix level: BSI
[00:00:00:000] | Dialog normalization: No
[00:00:00:000] | Rear channels filtering: No
[00:00:00:000] | Source Sample-Rate: 48.0KHz
[00:00:00:000] +---------------------
[00:04:15:552] Conversion Completed !
[00:01:42:000] <-- Transcoding Duration

[#2]

Sync is ok with an Xvid Jambo encode straight out of Dvd2avi (no avs) and the same alt preset standard mp3 stream that needed -1150ms in an mkv.
I tried reencoding the rmvb and saveing the d2v as a 1.76 project for auto rv9 and encoding again. But to no avail. I still need arround -350ms in MPC to sync in. Any issues with the mkv spliter in MPC? I'm realy stuck on this one. Any one got any diagnotstics I could try?

Thanks.
#2