MPEG StreamClip loses audio

[alhenderson]

Evening All,

I have downloaded a number of files from my PVR as .ts files and have been using MPEG StreamClip to convert them to mpg prior to DVD burning. Problem is, when I play back the mpg using VLC there's no audio (the .ts file is fine). I have done this before with files from the PVR and all was fine. I am loading the ts file into MPEG StreamClip and using the 'Convert to MPEG' option.

There was no indication during the conversion that anything was wrong. Can anyone shed any light on this or suggest anything? I don't see any options in MPEG StreamClip which look pertinent..

Thanks,
Al.

[tomlee59]

Do you see more than one audio stream listed in VLC's Audio pulldown menu? If so, try selecting another one, and see if you get playback.

[Soopafresh]

Isn't there a choice in MpegStreamClip to convert to Mpeg with MP2 audio and Mpeg with WAV audio? Try one of those options perhaps

[alhenderson]

The VLC Audio drop down shows two tracks - and when I select track 2, I get the sound.

So, do I need to do something different in MPEG StreamClip when converting to MPG, or can I tell AVsToDVD to use track2 rather than Track 1. Can't see any options that might be useful in this regard..

Thanks,
Al.

[Soopafresh]

Try audio PID dropdown option before you convert to MPG

[alhenderson]

There are 2 options there, '6018 MP2 Stereo' and '6019 MP2 Mono', which ever I selected I still get an MPG with two audio tracks and I have to manually switch to track 2 in VLC to get any sound. Have also tried the 'Convert to MPEG' and 'Convert to MPEG with MP2 Audio' options with both of these Audio PIDs selected, but it makes no difference.

If AVsToDVD offered me the same choice as VLC then I could choose the correct track before burning, but it doesn't seem to..

Al.

[_MrC_]

AVStoDVD cannot choose the track. It grabs first one only.

You can try with VirtualDubMod:
- load your mpg
- go to 'Streams'/'Stream List'
- disable the audio track you do not want and press OK
- select 'Video'/'Direct Stream Copy'
- save your mpg

Then you can continue with AVStoDVD



Bye

P.S. This VirtualDubMod workflow works for AVIs. I am not sure you can do the same with mpg. If not you can try to re-encode the file as AVI uncompressed (very large) and then feed it into AVStoDVD.

[alhenderson]

AVStoDVD cannot choose the track. It grabs first one only.

You can try with VirtualDubMod:
- load your mpg
- go to 'Streams'/'Stream List'
- disable the audio track you do not want and press OK
- select 'Video'/'Direct Stream Copy'
- save your mpg

Then you can continue with AVStoDVD



Bye

P.S. This VirtualDubMod workflow works for AVIs. I am not sure you can do the same with mpg. If not you can try to re-encode the file as AVI uncompressed (very large) and then feed it into AVStoDVD.

Thanks, I have downloaded VirtualDubMod and am trying it now. When I loaded the MPG into it, it prompted me to choose an audio stream, which I did. However, I can't save it as an MPG, and if I set it to Direct Stream Copy and try to save as an AVI, it says the original video compression is incompatible with AVI, so I have to use Normal recompression and save as an AVI. Its doing that as we speak, but my first impression is that it is *very* slow - going to take a long time to do all my video files at this rate (I have lots of 5 minute ones I want to put on DVD).

Is there a better way to do this? Are there packages out there that would do this all in one, rather than having to using a multitude of different utilities? I wouldn't mind paying a reasonable amount if I got something that did the job and did it well..

I'm also surprised that the .ts file that came off the PVR seems to be somehow different to other files I have downloaded from it - is this difference down to the way in which the programs have been originally broadcast?

Thanks,
Al.

[_MrC_]

There is also TsRemux which can trim & extract streams from a ts file. Give it a try.



Bye

[alhenderson]

There is also TsRemux which can trim & extract streams from a ts file. Give it a try.



Bye

Thanks again I have downloaded that and tried it, it offers me a list of streams to keep, so I choose the video stream and what I think is the correct audio stream and ask it to Remux. I save it as a .ts file (choose TS (188 byte packets)) from the output type, but when I try to view that with VLC, I get a black screen with no sound. Am I right in thinking that TsRemux won't create an MPG for me?

Thanks,
Al.

[poisondeathray]

You could try avidemux. Similar to vdub/vdubmod but accepts and outputs many more file formats (incl. MPEG2)

What kind of PVR? What kind of .ts? (what kind of video & audio ? use mediainfo)

[alhenderson]

You could try avidemux. Similar to vdub/vdubmod but accepts and outputs many more file formats (incl. MPEG2)

What kind of PVR? What kind of .ts? (what kind of video & audio ? use mediainfo)

The PVR is a Humax 9200, .ts file info according to MediaInfo:

General
ID : 3002
Complete name : C:\Documents and Settings\Administrator\My Documents\My Videos\Peppa Pig\20081010 0813 Peppa Pig.ts
Format : MPEG-TS
File size : 61.9 MiB
Duration : 9mn 52s
Overall bit rate : 875 Kbps

Video
ID : 6017 (0x1781)
Menu ID : 12866 (0x3242)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, Matrix : Default
Duration : 9mn 52s
Bit rate mode : Variable
Bit rate : 583 Kbps
Nominal bit rate : 15.0 Mbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 16/9
Frame rate : 25.000 fps
Standard : PAL
Colorimetry : 4:2:0
Bits/(Pixel*Frame) : 0.056

Audio #1
ID : 6018 (0x1782)
Menu ID : 12866 (0x3242)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Resolution : 16 bits
Video delay : -438ms
Language : English

Audio #2
ID : 6019 (0x1783)
Menu ID : 12866 (0x3242)
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Bit rate mode : Constant
Bit rate : 64.0 Kbps
Channel(s) : 1 channel
Sampling rate : 48.0 KHz
Resolution : 16 bits
Video delay : -284ms
Language : English
Language, more info : Visual impaired commentary

[tomlee59]

Here's what I suggest: Take the output from Streamclip, and demux that. The result will likely be a video stream and two audio streams, one of which will be tiny. Remux just the video and audio that you want to preserve; that will eliminate the vestigial null audio track. Then take that remuxed result and do what you will with it.

You may have to rename Streamclip's output .mpg instead of .mpeg first. I love Streamclip, except for that noogie. I wish they would just produce an "ordinary" mpg. But renaming, demuxing and remuxing usually makes things work.

[poisondeathray]

You already have MPEG2 video and .mp2 audio. It looks pretty low bitrate; instead of re-encoding and losing more quality, try extracting the raw .m2v and .mp2 with tsmuxer, then use a dvd authoring tool (e.g. dvdauthorgui, guifordvdauthor). You can choose to include either or both audio tracks

Should you need to re-encode, Avidemux should be able to accept the .ts natively as well, you can also specify which audio track

[alhenderson]

Here's what I suggest: Take the output from Streamclip, and demux that. The result will likely be a video stream and two audio streams, one of which will be tiny. Remux just the video and audio that you want to preserve; that will eliminate the vestigial null audio track. Then take that remuxed result and do what you will with it.

You may have to rename Streamclip's output .mpg instead of .mpeg first. I love Streamclip, except for that noogie. I wish they would just produce an "ordinary" mpg. But renaming, demuxing and remuxing usually makes things work.

Sounds good, but what do I use to demux/remux?

Thanks,
Al.

[tomlee59]

Streamclip can demux (but I don't use that feature), as can TMPGEnc. The latter can also mux. I believe only the payware version of TMPGEnc will operate on MPEG2 streams, however.

[alhenderson]

Success!! I was messing around and found an option in MPEG Stream Clip to 'Delete Audio Track', so I selected the mono audio track in the Audio PID drop down, deleted it and then converted to MPEG. Burnt quit ehappily to DVD.

Thanks for all your help guys,

Al.