M2TS File No Audio in Premiere (works fine in VLC)

[koberulz]

As per topic title. No audio track even drags in when I try to drop it into a sequence.

MediaInfo:
General:
Format : MPEG-TS
File size : 4.43 GiB
Duration : 44mn 30s
Overall bit rate : 14.2 Mbps
Maximum Overall bit rate : 18.0 Mbps

Video:
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=1, N=64
Codec ID : 27
Duration : 44mn 30s
Bit rate mode : Variable
Bit rate : 13.1 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 : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.254
Stream size : 4.09 GiB (92%)
Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics : BT.709-5, BT.1361
Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177

Audio:
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 44mn 30s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -120ms
Stream size : 122 MiB (3%)

VLC says it's in surround sound, though.

[poisondeathray]

You can try re-wrapping with tsmuxer , tsremux or ffmbc then import it

Or maybe demux the audio , convert to wave and import it separately

Or maybe stream copy the video, convert the audio into a new container (e.g. avidemux)

Or maybe use VLC to convert it to some digital intermediate

[koberulz]

Or maybe demux the audio , convert to wave and import it separately

What would I use to do that?

[poisondeathray]

Or maybe demux the audio , convert to wave and import it separately

What would I use to do that?

maybe with tsmuxer or eac3to or ffmpeg

you can convert with eac3to, audacity, foobar2k, ffmpeg , etc...

[koberulz]

tsMuxer wouldn't import the audio, eac3to keeps telling me I need to select a source file/folder and a destination folder, even though I already have.

[poisondeathray]

if you are using a gui for eac3to, you have to setup the paths otherwise it won't work

if you use commandline, it's

eac3to input.m2ts -demux



since vlc can play it , very likely ffmpeg can convert it or demux it or even re-wrap it . It's probably an non standard transport stream, that's why PP can't "see" the audio

e.g for stream copy audio

ffmpeg -i input.m2ts -vn -acodec copy output.ac3


ffmbc works better for transport streams, if you re-wrap it, very likely premiere will "see" it

ffmbc -i input.m2ts -vcodec copy -acodec copy -f mpegts output.m2ts

[koberulz]

I was using a GUI, and linked it to eac3to. It just insisted I needed to set up sources and destinations even though I already had.

Tried using gui4ffmpeg, only outputting audio, and it threw out something about a CRC mismatch, an incomplete frame, and an invalid frame size, then crashed.

[poisondeathray]

maybe the gui is using old/outdated ffmpeg build ? or maybe you have errors in the stream ? ffmbc definitely works better with transport streams than ffmpeg

if vlc can play it, it should be able to convert it

maybe try avidemux nightly build to save the audio as wav
http://avidemux.org/nightly/win32/


where is this from ? sat recording ?

do you have a small sample you can upload ?

[koberulz]

I downloaded ffmbc...no file extensions on 90% of it and I have no idea how to use it.

[poisondeathray]

It's a command line app; you can download a precompiled binary here
https://www.videohelp.com/download/FFmbc-0.5-win32.7z

Put the exe in the same directory as the video , open a command prompt and type in the commands, or copy & paste (change finename to match yours)



Did you try the nightly build of avidemux ?

You can also try DGAVCIndex to demux the audio

[koberulz]

'error, non monotone timestamps 334800 >= 10800'

[poisondeathray]

What is the source?


Did you try the other suggestions ?

If DGAVCIndex doesn't detect the audio automatically, manually set the PID or use the one that VLC identifies as the PID . You're only using it to demux the audio

For example, in mediainfo:

ID : 4352 (0x1100)

Stream=> Set PID's => I think you would enter "1100" (not sure)

[poisondeathray]

It's probably easiest to use VLC since it plays fine in VLC

media => convert/save => add video => convert/save=> then setup a new profile (you might want to convert to wave, or only demux audio for example)

[koberulz]

What is the source?

I captured it from this using this (optical audio cable, RGB video cables).

Did you try the other suggestions ?

I don't even know what you're talking about half the time. I know very little about this stuff.

If DGAVCIndex doesn't detect the audio automatically, manually set the PID or use the one that VLC identifies as the PID . You're only using it to demux the audio

Opened with DGAVCIndex, demuxed. Imported the resulting ac3 file into Premiere, everything looked good...but it's in stereo. It starts in sync perfectly, for about ten seconds, and then cuts to a later point, and at about 11 minutes in it just starts repeating the same half-second over and over until the end of the video.

[koberulz]

Tried using VLC to convert to MP3, but all it ended up with was a .ps file, which doesn't even show up in Premiere's "Import" dialog.

[poisondeathray]

If this is 6-channel according to vlc, mp3 isn't supported (only stereo)

I would copy the audio, and if it's a funny extension, rename extension to ac3

(just make a conversion preset/profile in VLC, I think it's the last button)

[koberulz]

What settings should I use for the preset/profile?

[koberulz]

Bump?

[poisondeathray]

I don't know , I don't have a sample


Try "keep original audio track" and uncheckmark video

Or maybe try copying the video and audio into a new container


If you search, a lot of people have problems with HDPVR recordings (at least recent versions)

[koberulz]

Alright, had a look around and used tsSniper. It wouldn't let me output an elementary stream or m2ts file, though (the option is there, but greyed out), and Premiere wouldn't let me import a .ts file, so I demuxed with tsMuxer. Success...sort of. The audio imports fine, but is out of sync with the original m2ts file. The tsMuxer-produced .264 file is completely useless, flashing green every now and then alternating with random pictures from the footage that occur nowhere near each other. Further, the audio is in stereo in Premiere, even though VLC reports it as being in surround sound.

[poisondeathray]

Maybe VLC is incorrect ? Do you hear real 6 ch when playing it ?

You might get better suggestions if you upload a sample

[koberulz]

If I could cut out a sample, I wouldn't have a problem.

It was recorded in surround sound. I've only got stereo speakers, though, so I can't tell what it's actually playing as. The original file, at least, should be 5.1 though.

[koberulz]

Worked it out. The channel I was recording from aired the show in 5.1, but the commercials in stereo, which obviously the PVR can't handle or something. I recorded from a channel that airs everything in 5.1, and it worked fine. Was in sync and everything (though it does unsync if I fast-forward or rewind at any point, which could be where others are having problems).