How do you extract ac3 from m2ts when tsmuxer doesn't read the audio?

[yoda313]

Ok I have a show I dubbed off my cable hd pvr with my hauppauge hd pvr. The original show is in 5.1 audio. I captured to h264 inside a m2ts file. The show was broadcasted in 5.1 but it seems like most programs are only reading 2 channel audio (avs to dvd reports 2 channel). I think what happened is the channel I started my dub on was broadcasting in stereo but when I played my recorded program it flipped to 5.1. I don't think avstodvd can recognize that switch inside the file.

What I did was I used tmpengc plus to convert the avs file of the video clip into a 3000kpbs mpg2 clip so I can make a dvd out of it. The video looks good but the audio is only stereo.

I tried tsmuxer but it only recognizes the video file. It does not show the audio file. That is my first try to use tsmuxer but it won't let me demux it.

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What program can I use to demux ac3 audio from a m2ts file other than tsmuxer?

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I've done some searching here and I found suggestions for eac3to to extract it. But it seems like it simply uses tsmuxer to do that work so I'm back to square one.

I'm not sure what else to use.

In the end I can live with stereo as long as its on just a few of my caps. I'm hoping this is the exception rather than the rule. I have a few movies I dubbed that I want to make dvds of and hopefully I don't have the same problem.

In the end I could simply make some avchd's out of these and hope my ps3 can read the 5.1 when the show starts.

My reason for converting to dvd is space. I do have a wdtv media player but I don't want to fill up a harddrive with these "throw away" shows. I want to keep them but I don't need them in their full glory - downconverting is ok. And I don't want to waste dl's on these because even though they are 1 hour shows I capped at 6.5mb and they are about 3gb each. I want to try to get 3 on a single layer. 3000kpbs seems ok though a little pixelated on some of the fast motion camera stuff they do occasionally.

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I've tried avidemux and it crashed after indexing it as an mpeg type file. I've just tried projectx (the newer lite version) and it was able to demux it but I did not seem to get an audio file just a video file.

So what options do I have? Or should I resign myself to stereo for this particular episode I dubbed?

Edit - I am using the arcsoft software that came with the hauppauge hd pvr to make a dvd. I remember reading it will keep the audio intact if you don't edit the video in the dvd creation software (otherwise it converts to stereo upon edits). Hopefully that will retain the original 5.1 inside the captured file. If it does than I can merely compile it into a new dvd and transcode it to fit a single layer with as many as 3 episodes should I so choose.

[Megahurts]

Have you tried TsRemux?

Right click on the audio stream and select 'Demux audio stream #x to elementary stream'.

[yoda313]

So tsremux is not the same as tsmuxer? I will give it a try.

FYI I just finished the dvd creation with arcsoft and the import into tda 2.0 says the dvd is a stereo dvd unfortunately.

I will try tsremux.

My next step after that is to burn the raw m2ts file to dvdr and check it out with my ps3 (the ps3 does read raw m2ts fyi). What I want to know is if the show copied in 5.1 at all, if it didn't than I can't do anything about it but I will try tsmuxer first.

Edit - can I save them as .ac3? I did it as a first test but there wasn't a file type save option that I could tell. Also it was reallly small - 170mb or so when the original file was 3gb - is that accurate?

edit 2 - I did it again and saved it as an ac3. I opened it with gspot and it does say its ac3 with 6 channel audio.

I'm gonna try to import it into tda 2.0 to make a new dvd from my video I've already converted. Hopefully this will work.

Thanks megahurts.

Edit 3 - Ok I used avstodvd to mux the m2ts file and the extracted ac3 file to a dvd folder. It still came out stereo according to gspot.

I think I'm just gonna throw in the towel on this one and accept it in stereo only. THats ok at least it is in synch. Thats the most important part.

Hopefully the movies I dubbed are all in 5.1 like they are supposed to be.

Thanks for the program suggestion as that actually did work with the file.

[_MrC_]

Edit 3 - Ok I used avstodvd to mux the m2ts file and the extracted ac3 file to a dvd folder. It still came out stereo according to gspot.

Do you still have the .log file generated by AVStoDVD? If yes, could you post it?



Bye

[yoda313]

Here is the log file

<12/30/2010 9:11:56 PM>
START PROCESS
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<12/30/2010 9:11:56 PM>
PROJECT SETTINGS

DVD Video Standard: NTSC
DVD Titles number: 1
DVD Size: 66/4450 MB (1%)
DVD Output Setup: DVD Folder
DVD Label: ******
DVD Menu: Static Menu
Output Folder: E:\dvd output
Delete Temp Process Files: Yes
Delete Working Files: Yes
Edit Command Parameters: No
Post Process Task: Show Progress Status window

PREFERENCES

MultiThread: 1
AVS Source Filter: A2DSource
AVS UpSize/DownSize Filter: Lanczos4Resize/Spline64Resize
Video Resolution: 0
Video BitRate Min: 2500
Video BitRate Level 1: 6500
Video Profile Level 2: 4500
Video BitRate Max: 8500
Keep DVD Compliant Video: 1
AC3 Audio Encoder: 0
PAL SpeedUp: 0
Force FFmpeg for Long Audio: 1
DVD Audio Format: 0
DVD Audio BitRate: 384
Keep DVD Compliant Audio: 1
Normalize Audio: 0
DVD Audio Language: EN - English
DVD Subs Language: EN - English
DVD Subs Font: Tahoma 18pt Bold
Chapters Interval: 5
Use Source Chapters: 1
DVD Burning Drive: F: TSSTcorp CD/DVDW TS-H652M 0414
DVD Burning Speed: 4x
Auto Erase DVD RW: 1
Save Log file: 1
Save General Settings: 0
Unload ActiveMovie library: 0
Adjust ffdshow mixer: 1
<>

<12/30/2010 9:11:56 PM>
TITLE 1 SOURCE FILES
Video: E:\high def captures\******.M2TS
Info: AVC - 6381 kbps - 1280x720 - DAR 1.778 - 59.94 fps (CFR) - Progressive - 1:00 minutes - 3633 frames
Audio 1: E:\high def captures\*******.ac3
Info: AC3 - 384 kbps - CBR - 2ch - 48000Hz - 16bit - 1:00:56 hours - External
Subs:
[MediaInfoLib - v0.7.35]
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<12/30/2010 9:11:56 PM>
AVISYNTH SCRIPT
Import("C:\Program Files\AVStoDVD\Lib\A2DSource.avsi")

Video = A2DVideoSource("E:\high def captures\*******.M2TS", CacheFolder="E:\_TEMP", VFR=false)
# Audio is frameserved by AviSynth just for Preview and Edit purposes.
Audio = A2DAudioSource("E:\high def captures\********.ac3", CacheFolder="E:\_TEMP")

Video = Video.ConvertToYV12
Video = Video.SelectEven()
Video = Video.Spline64Resize(720,480)

AudioDub(Video, Audio)
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<12/30/2010 9:11:56 PM>
START VIDEO ENCODING OPERATIONS
Encoding Profile: QuEnc CBR 1-pass
Target Video FileSize: 61.8 MB
QuEnc Parameters: -i "E:\_TEMP\********_0_*********_1.avs" -o "E:\dvd output\*******_0_*********m2v" -b 8500 -1 -hq -novbr -scene -trell -aspectratio 16:9 -nointerlaced -mpeg2mux noaudio -dc 10 -priority 5 -auto -close
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<12/30/2010 10:58:27 PM>
END VIDEO ENCODING OPERATIONS
A2DVideoSource: DirectShowSource
Created File: E:\dvd output\********_0_**********.m2v (3797.8 MB)
OUTPUT VIDEO INFO: MPEG-2 Video - 8500 kbps - 720x480 - DAR 1.778 - 29.97 fps (CFR) - Progressive - 1:02:24 hours - 112215 frames
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<12/30/2010 10:58:27 PM>
START TRANSCODING OPERATIONS
ReJig Parameters: -size 61 -o "E:\dvd output\********_0_**********.ReJig.m2v" -i "E:\dvd output\*******_0_*********.m2v" -auto -close -quiet
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<12/30/2010 11:01:26 PM>
END TRANSCODING OPERATIONS
Transcoding executed on File: E:\dvd output\*********_0_**********.m2v (891.6 MB)
OUTPUT VIDEO INFO: MPEG-2 Video - 2007 kbps - 720x480 - DAR 1.778 - 29.97 fps (CFR) - Progressive - 1:02:24 hours - 112215 frames
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<12/30/2010 11:01:26 PM>
START AUDIO DEMUXING OPERATIONS (Track 1)
FFmpeg Parameters: -i "E:\high def captures\*********.ac3" -acodec copy "E:\dvd output\********_0_********_1.ToFix.ac3"
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<12/30/2010 11:16:18 PM>
START (BACKUP) AUDIO ENCODING OPERATIONS (Track 1)
FFmpeg Parameters: -threads 2 -i "E:\high def captures\*******.ac3" -map 0:0 -y -vn -acodec ac3 -ac 2 -ar 48000 -ab 384k "E:\dvd output\********_0_**********1.ac3"
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<12/30/2010 11:17:51 PM>
END AUDIO ENCODING OPERATIONS (Track 1)
Created File: E:\dvd output\**********_0_**********.ac3 (171.5 MB)
OUTPUT AUDIO INFO: AC3 - 384 kbps - CBR - 2ch - 48000Hz - 16bit - 1:02:26 hours
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<12/30/2010 11:17:51 PM>
START DVD MENU BUILDING OPERATIONS
DVD Menu settings: Style 0, DAR 1, Titles Format 0, Video BitRate 6000, Menu Pages 1, Menu Titles 1
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<12/30/2010 11:17:52 PM>
END DVD MENU BUILDING OPERATIONS
Created File (Menu Page 1): E:\dvd output\********_0_MenuPage1.bmp (1 MB)
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<12/30/2010 11:17:53 PM>
START DVD AUTHORING OPERATIONS
BatchMux Parameters: -arglist "E:\_TEMP\********_0_BatchMux.ini"
BatchMux ini file:
-d "E:\dvd output\*******1_0\VIDEO_TS"
-mxp "E:\_TEMP\********1_0_MuxMan.mxp"
-l "E:\_TEMP\*********1_0_MuxMan.log"
-muxman "C:\Program Files\AVStoDVD\MuxMan"
-prio LOW
-v "E:\dvd output\********_0_*********.m2v"
-vidmode LB
-a1 "E:\dvd output\*******_0_*********_1.ac3"
-a1lang en
-SEG2v "E:\dvd output\*******_0_MenuPage1.bmp"
-SEG2vidmode LB
-SEG2s1 "E:\dvd output\*******_0_Menu.sst"
-SEG2s1dmode WIDE_LB
-SEG2hlmnu "E:\_TEMP\********_0_MenuPage1_Buttons.mnu"
-SEG2hlcsm "E:\_TEMP\********_0_HighlightScheme.csm
-hcn "E:\_TEMP\********1_0_BatchMux.hcn"
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<12/30/2010 11:19:34 PM>
CHECK DVD SIZE
DVD Folder (actual) Size: 1103.5 MB
vs Estimated Size: 66 MB -> 1572.0% oversize
vs Assets Size: 3970.2 MB -> Warning!
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<12/30/2010 11:19:34 PM>
END DVD AUTHORING OPERATIONS
Created Folder: E:\dvd output\*******_0 (1103.5 MB)
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<12/30/2010 11:19:34 PM>
Log file created by AVStoDVD Release 2.3.2
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Edit - I am wondering if gspot read the extracted ac3 incorrectly? The dvd that came out was in stereo but it was in synch. So maybe it really was a stereo file to begin with? I have yet to burn the original m2ts file to disc to test it on the ps3. I guess that is the only way to be sure that the original was capped in stereo not 5.1

Thanks.

[_MrC_]

The added AC3 stream should very probably be stereo (2.0) and not 5.1. See MediaInfo reading by AVStoDVD:

Video: E:\high def captures\******.M2TS
Info: AVC - 6381 kbps - 1280x720 - DAR 1.778 - 59.94 fps (CFR) - Progressive - 1:00 minutes - 3633 frames
Audio 1: E:\high def captures\*******.ac3
Info: AC3 - 384 kbps - CBR - 2ch - 48000Hz - 16bit - 1:00:56 hours - External

There's another issue with the original m2ts: video time is reported as 1:00 minute instead of 1:00:56 hours. Is that correct? If not, you can try to fix that using TsRemux.



Bye

[yoda313]

@_mrc_ - thanks for taking a look.

Yes it probably is. I will try to burn the original m2ts and check it on the ps3 this weekend (sometime in between watching football ).

The odd thing about that time difference is that the output was in synch. That was bizarre.