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3rd March 2014, 13:20 | #7761 | Link |
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I have used multiavchd for a long time and it works as far as the video but I noticed if I have LCPM 5.1 files, it always downconverts it to a very low ac3 at 128kbps
I have all the boxes unchecked unter author and audio It is supposed to just pass thru and keep the LPCM 5.1 does anyone know how to correct this? that is the only flaw I see with this |
3rd March 2014, 16:07 | #7763 | Link |
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even if I get a target size, what does that have to do with the program downgrading the LPCM 5.1 audio?
It is supposed to just pass thru I have also noticed that some smaller bitrate video files with pass thru right but other files that have video bit rates of over 15 will convert to the lower 128kbps that also does not make sense as the Video size should have nothing to do with the audio conversion or pass thru |
4th March 2014, 06:09 | #7764 | Link |
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This is from a looong time ago, but IIRC this has something to do with the version of tsMuxer that MultiAVCHD uses, which can't handle or (de-)mux pcm audio properly. Also I remember there was a cli tool called "pcm2tsmux" or something that could fix a certain pcm problem before remuxing again. Not sure if it had something to do with endianness. Again, this is ages ago for me.
Maybe you want to try the latest tsMuxer manually; I understand pcm audio is no problem now. cheers |
4th March 2014, 06:52 | #7765 | Link |
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I've been searching every set of terms I can think of with no luck finding an answer.
I've got a 31gb BD. I can burn it as 31gb, I can view the files under Windows and it is 31gb. When I load it in reauthor mode of multiAVCHD, the initial size before I start blanking unnecessary segments and audio tracks is nearly 50gb. After I blank what I want, it SHOULD come in small enough for a BD25, except it is now around 30gb again. The outputted BD files include a half dozen new large .m2ts files that weren't on the original disc. Any idea what could be causing this? |
5th March 2014, 16:52 | #7768 | Link |
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not having a menu is not good and it would be more work to manually put in chapters for every clip if you use tsmuxer
mutliavchd has that option to automatically add chapters what about creating the blu-ray folder and manually being able to put in the clips iwith lpcm 5.1 I thought I have heard of being able to create the folder structure and then put in the files |
6th March 2014, 06:00 | #7771 | Link |
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I definately can imagine wanting to keep original audio (or compress it losslessly).
tsMuxer can do that to. If you take a look at the options, you can choose to insert chapterpoints every user-given minutes. If your input file has chapters, tsMuxer will recognize them and adjust the chapterlist automatically. And - as said - you can copy/paste chaptertimes into the list, should you have the timings in a textfile or something. |
6th March 2014, 21:53 | #7773 | Link |
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what is strange is that some files with lpcm 5.1 will pass thru like normal and others it will try to use eac to converto ac3
makes no sense. I know I have all the boxes unchecked; you have to in order for it to pass thru the lpcm 5.1 |
7th March 2014, 00:25 | #7774 | Link | |
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Quote:
You can see with MediaInfo if you waves are in big or little endian. |
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7th March 2014, 06:13 | #7776 | Link | |
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Quote:
Maybe the "faulty" lpcm stream isn't blu-ray compatible in terms of bitrate/bitdepth/samplerate? Then MultiAVCHD will auto re-encode of course. First thing to make sure actually... Or there's something else jiffy then with some pcm streams. Maybe a header thing... I can't tell. I know from the past that sometimes plain remuxing handled some issues. Maybe you can give this a try? Take the one file where lpcm passthru don't work. Load this file in the newest version of tsMuxer (if source is BD folder, select proper mpls: chapters are recognized then). Select wanted streams and mux into BD folder structure again. Add this output into MultiAVCHD and see if passthru now works. Maybe by remuxing the newer tsMuxer has set something straight or at least did something to make the older tsMuxer to work. |
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7th March 2014, 06:30 | #7777 | Link | |
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Quote:
Or try to reinstall MultiAVCHD. Saved me a couple of times. |
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7th March 2014, 17:05 | #7780 | Link |
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Here is a sample mediainfo from 1 of the files that does pass thru on multiavchd
Format : BDAV Format/Info : Blu-ray Video File size : 672 MiB Duration : 4mn 44s Overall bit rate mode : Variable Overall bit rate : 19.8 Mbps Maximum Overall bit rate : 35.5 Mbps Video ID : 4113 (0x1011) Menu ID : 1 (0x1) Format : MPEG Video Format version : Version 2 Format profile : Main@High Format settings, BVOP : No Format settings, Matrix : Default Format settings, GOP : N=12 Codec ID : 2 Duration : 4mn 45s Bit rate mode : Variable Bit rate : 12.1 Mbps Maximum bit rate : 20.0 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 25.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.233 Time code of first frame : 00:00:00:00 Time code source : Group of pictures header Stream size : 411 MiB (61%) Audio ID : 4352 (0x1100) Menu ID : 1 (0x1) Format : PCM Format settings, Endianness : Big Format settings, Sign : Signed Muxing mode : Blu-ray Codec ID : 128 Duration : 4mn 44s Bit rate mode : Constant Bit rate : 6 912 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Bit depth : 24 bits Stream size : 235 MiB (35%) |
Tags |
avchd, blu-ray hd-dvd, mkv, multiavchd, re-author |
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