MPG Clips will only import video and not audio

John-Phillips wrote on 11/3/2020, 7:46 AM

Hello. I have just updated Vegas Pro 18 and I find that some mpg clips are no longer being imported with audio - only the video component is there. The same clips worked fine before the update. In fact, I have had to restore my pc to the original Vegas Pro 18 settings as I need this facility. I won't agree to "update" again until I know a fix. Please help!

Comments

John-Phillips wrote on 11/3/2020, 10:19 AM

This is what it says on the file I am using. It works on Vegas 18 Pro before update but not after.

 Type: MainConcept MPEG-2
  Size: 473.09 MB (484,446,208 bytes)
  Created: 19 October 2020, 19:20:10
  Modified: 18 April 2019, 00:39:13
  Accessed: 19 October 2020, 19:20:16
  Attributes: Archive

Streams
  Video: 00:11:28.640, 25.000 fps progressive, 720x576x32, MPEG-2
  Audio: 00:11:27.808, 48,000 Hz, Stereo, AC-3

ACID information
  ACID chunk: no
  Stretch chunk: no
  Stretch list: no
  Stretch info2: no
  Beat markers: no
  Detected beats: no

Other metadata
  Regions/markers: no
  Command markers: no

Media manager
  Media tags: no

Plug-In
  Name: mcplug2.dll
  Folder: C:\Program Files\VEGAS\VEGAS Pro 18.0\FileIO Plug-Ins\mcplug2
  Format: MainConcept MPEG-2
  Version: Version 18.0 (Build 334)
  Company: MAGIX Computer Products Intl. Co.
 

Illusion wrote on 11/3/2020, 5:14 PM

I have the same problem. I edited projects with VP18 build 334 having .mpg files in them no problems. In build 373, dropping the same clips on the timeline only create a video track, no audio. Here is a sample mediainfo. BTW, the .mpg file was created with VP18 build 334 DVD camcorder import tool (available in the deprecated features). The file plays correctly with audio in VLC. The AC-3 decoder seems to be gone from build 373.

General
Complete name                            : F:\...\VTS_01_1 (01).mpg
Format                                   : MPEG-PS
File size                                : 26.8 MiB
Duration                                 : 37 s 37 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 6 073 kb/s

Video
ID                                       : 224 (0xE0)
Format                                   : MPEG Video
Format version                           : Version 2
Format profile                           : Main@Main
Format settings                          : BVOP
Format settings, BVOP                    : Yes
Format settings, Matrix                  : Default
Format settings, GOP                     : M=3, N=15
Format settings, picture structure       : Frame
Duration                                 : 37 s 37 ms
Bit rate mode                            : Variable
Bit rate                                 : 5 744 kb/s
Width                                    : 720 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 29.970 (30000/1001) FPS
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.555
Time code of first frame                 : 00:00:00:00
Time code source                         : Group of pictures header
GOP, Open/Closed                         : Open
GOP, Open/Closed of first frame          : Closed
Stream size                              : 25.4 MiB (95%)
Color primaries                          : BT.601 NTSC
Transfer characteristics                 : BT.601
Matrix coefficients                      : BT.601

Audio
ID                                       : 189 (0xBD)-128 (0x80)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
Muxing mode                              : DVD-Video
Duration                                 : 37 s 24 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 868 KiB (3%)
Service kind                             : Complete Main

Menu

 

Illusion wrote on 11/3/2020, 5:26 PM

I extracted only the audio from the .mpg file using ffmpeg to a .ac3 file. VP18 373 will not even allow me to drop that to the timeline.

General
Complete name                            : D:\5\output.ac3
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
File size                                : 868 KiB
Duration                                 : 37 s 24 ms
Overall bit rate mode                    : Constant
Overall bit rate                         : 192 kb/s

Audio
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
Duration                                 : 37 s 24 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 868 KiB (100%)
Service kind                             : Complete Main

 

Last changed by Illusion on 11/3/2020, 5:26 PM, changed a total of 1 times.

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Illusion wrote on 11/3/2020, 5:31 PM

I am able to drop a .mts file that contains 5.1 AC-3 no problems, audio track is there. So I converted my .mpg to a .mts container using ffmpeg and now VP18 373 is able to see the audio! Here is my command line if you want:

ffmpeg -i "d:\5\VTS_01_1 (01).mpg" -vcodec copy -acodec copy d:\5\output.mts

 

Illusion wrote on 11/3/2020, 5:55 PM

With .mts container, the following plugin is used

Plug-In
  Name: compoundplug.dll
  Folder: C:\Program Files\VEGAS\VEGAS Pro 18.0\FileIO Plug-Ins\compoundplug
  Format: MPEG-2 Transport Stream
  Version: Version 18.0 (Build 373)
  Company: MAGIX Computer Products Intl. Co.

 

With .mpg container, the following plugin is used. This is the sick puppy.

Plug-In
  Name: mcplug2.dll
  Folder: C:\Program Files\VEGAS\VEGAS Pro 18.0\FileIO Plug-Ins\mcplug2
  Format: MainConcept MPEG-2
  Version: Version 18.0 (Build 373)
  Company: MAGIX Computer Products Intl. Co.

@VEGASDerek or someone at Vegas, can you check this?

John-Phillips wrote on 11/4/2020, 3:14 AM

Thanks for all your comments! I would rather not have to do that extra step of converting mpg to mts so I'm inclined not to update Vegas 18 Pro unless a fix is found. Any advice from the Vegas team?

VEGASDerek wrote on 11/4/2020, 7:13 AM

It is our advice to transcode this media so the audio does not us AC-3.

Illusion wrote on 11/4/2020, 7:34 AM

I was working perfectly in build 334 !

John-Phillips wrote on 11/4/2020, 8:15 AM

I know - it has been great for me up to now. That's so frustrating that it now requires an extra step. I will not upgrade Vegas 18 Pro then unless you can suggest something else I can do so that all mpg files will work. I have quite a lot of them!

EricLNZ wrote on 11/4/2020, 10:03 PM

It's the same with the latest VMS17 update.

Mpg and VOB files with AC3 audio now don't import the audio stream!!!

Yet 1080 mts and m2ts files with AC3 audio do import the audio stream.

@VEGASDerek Whats the difference with AC3 in mpg compared to mts, other than different plug-ins are used to decode?

VEGASDerek wrote on 11/5/2020, 8:11 AM

Mpeg files, which is a less frequently used older format, use a main concept decoder which requires a different audio decoder to handle its AC3 audio than mts and m2ts media. We are no longer able to use that decoder. We are looking at routing this through a new demuxer so the audio would be available again, but for now we are recommending transcoding files of this type.

wwaag wrote on 11/5/2020, 10:49 AM

You can easily do this using the ImportAssist tool in HappyOtterScripts https://tools4vegas.com/ Here's a demo.

In the demo the MPG file is "rewrapped" into an MP4 container. The video stream is simply copied so there is no loss of quality. Only the audio stream is re-rendered from AC3 to pcm.

 

AKA the HappyOtter at https://tools4vegas.com/. System 1: Intel i7-8700k with HD 630 graphics plus an Nvidia 1050ti graphics card. System 2: Intel i7-3770k with HD 4000 graphics plus an AMD RX550 graphics card. Current cameras include Panasonic FZ2500, GoPro Hero5 Black plus a myriad of smartPhone, pocket cameras, video cameras and film cameras going back to the original Nikon S.

Illusion wrote on 11/5/2020, 3:21 PM

...We are looking at routing this through a new demuxer so the audio would be available again, but for now we are recommending transcoding files of this type.

Glad to hear that there is hope it will work again.

David-Fairweather wrote on 11/6/2020, 10:07 AM

I am having the same issue with an edit I had in progress using build 334 where the audio import worked fine. Now I have made the mistake of upgrading and now many of my clips have no audio. Are you saying you are not able to use the decoders because you can't get the licence or they just won't work with the latest coding. Either way having to go back and recode all my old MPEG 2/VOB files really isn't on - I have a ton of them!

Please fix this and soon. - or do you have a way of opening an edit in ProV17 so I can at least finish the edit without having to start over.

JN- wrote on 11/6/2020, 10:52 AM

@david-fairweather It may be possible to load up vp18 project and do a complete select all, then copy and paste to an empty vp17.

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

VFR2CFR, Variable frame rate to Constant frame rate link here.

Copies Video Converts Audio to AAC, link here.

Benchmarking thread

Codec Render Quality tables

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

PC ... Corsair case, own build ...

CPU .. i9 9900K, iGpu UHD 630

Memory .. 32GB DDR4

Graphics card .. MSI RTX 2080 ti

Graphics driver .. latest studio

PSU .. Corsair 850i

Mboard .. Asus Z390 Code

 

Laptop ... (Acer Predator G9-793-77AC)

CPU .. i7-6700HQ Skylake-H

Memory ..32 GB DDR4, was previously 16 GB

Graphics card .. Nvidia GTX 1070

Graphics driver .. latest studio

David-Fairweather wrote on 11/6/2020, 11:35 AM

It worked! I have lost all my chapter markers but easily restored compared to the rest of the edit. Even came with all the video FX intact, and of course all the audio streams work. Thank you.

JN- wrote on 11/6/2020, 1:52 PM

@david-Fairweather 👍

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

VFR2CFR, Variable frame rate to Constant frame rate link here.

Copies Video Converts Audio to AAC, link here.

Benchmarking thread

Codec Render Quality tables

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

PC ... Corsair case, own build ...

CPU .. i9 9900K, iGpu UHD 630

Memory .. 32GB DDR4

Graphics card .. MSI RTX 2080 ti

Graphics driver .. latest studio

PSU .. Corsair 850i

Mboard .. Asus Z390 Code

 

Laptop ... (Acer Predator G9-793-77AC)

CPU .. i7-6700HQ Skylake-H

Memory ..32 GB DDR4, was previously 16 GB

Graphics card .. Nvidia GTX 1070

Graphics driver .. latest studio

John-Phillips wrote on 11/18/2020, 7:14 AM

I'm wondering if there has been any update on fixing this problem as I am still having to click on "do not update" every time I start Vegas. I only have Vegas 18 so I cannot do what is suggested above.

JN- wrote on 11/18/2020, 9:17 AM

@John-Phillips Maybe bite the bullet as VEGASDerek has suggested and convert the audio.

The following (dropbox download link here) will copy the video and convert the audio to aac at 128, 192, 256 or 320 KB, you can change the audio data rate to your liking. Use Mediainfo to see what the source files data rate is if you wish to match it.

Last changed by JN- on 12/2/2020, 8:18 AM, changed a total of 13 times.

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

VFR2CFR, Variable frame rate to Constant frame rate link here.

Copies Video Converts Audio to AAC, link here.

Benchmarking thread

Codec Render Quality tables

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

PC ... Corsair case, own build ...

CPU .. i9 9900K, iGpu UHD 630

Memory .. 32GB DDR4

Graphics card .. MSI RTX 2080 ti

Graphics driver .. latest studio

PSU .. Corsair 850i

Mboard .. Asus Z390 Code

 

Laptop ... (Acer Predator G9-793-77AC)

CPU .. i7-6700HQ Skylake-H

Memory ..32 GB DDR4, was previously 16 GB

Graphics card .. Nvidia GTX 1070

Graphics driver .. latest studio

athomasl wrote on 11/25/2020, 8:53 PM

Ugh, you mean I just paid megatubs to "upgrade" from Vegas 12 only to have them take away the ability to import the VOB files I authored with Vegas years ago? Thanks for providing a temporary workaround, and shame on Magix.

Illusion wrote on 11/25/2020, 9:13 PM

Ugh, you mean I just paid megatubs to "upgrade" from Vegas 12 only to have them take away the ability to import the VOB files I authored with Vegas years ago? ...

I felt the same. Worst, I came from Vegas 14 and I tested the trial of Vegas 18 before buying. The feature was still in Vegas 18 on the first build and update 1. It got removed in update 2. A shame yes.

john_dennis wrote on 11/26/2020, 12:09 AM

I've observed that the same content is handled differently in different wrappers, .mpg vs .ts.

General
Complete name                            : C:\Users\John\Desktop\MPG vs TS\MPG Wrapper.mpg
Format                                   : MPEG-PS
File size                                : 5.32 MiB
Duration                                 : 5 s 489 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 8 131 kb/s
Movie name                               : Law and Order: SVU
Law rating                               : TV-14 (DLSV)

Video
ID                                       : 224 (0xE0)
Format                                   : MPEG Video
Format version                           : Version 2
Format profile                           : Main@High
Format settings                          : CustomMatrix / BVOP
Format settings, BVOP                    : Yes
Format settings, Matrix                  : Custom
Format settings, GOP                     : Variable
Duration                                 : 5 s 489 ms
Bit rate mode                            : Variable
Bit rate                                 : 7 585 kb/s
Maximum bit rate                         : 80.0 Mb/s
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.137
Time code of first frame                 : 00:00:00;00
Time code source                         : Group of pictures header
Stream size                              : 4.96 MiB (93%)

Audio #1
ID                                       : 189 (0xBD)-128 (0x80)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
Muxing mode                              : DVD-Video
Duration                                 : 5 s 472 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 30 ms
Stream size                              : 128 KiB (2%)
Service kind                             : Complete Main

Audio #2
ID                                       : 189 (0xBD)-129 (0x81)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
Muxing mode                              : DVD-Video
Duration                                 : 5 s 472 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 30 ms
Stream size                              : 128 KiB (2%)
Service kind                             : Complete Main

Text #1
ID                                       : 224 (0xE0)-CC1
Format                                   : EIA-608
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)
CaptionServiceName                       : CC1

Text #2
ID                                       : 224 (0xE0)-CC3
Format                                   : EIA-608
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)
CaptionServiceName                       : CC3

Text #3
ID                                       : 224 (0xE0)-1
Format                                   : EIA-708
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)

Text #4
ID                                       : 224 (0xE0)-2
Format                                   : EIA-708
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)
General
ID                                       : 1 (0x1)
Complete name                            : C:\Users\John\Desktop\MPG vs TS\Transport Stream Wrapper .ts
Format                                   : MPEG-TS
File size                                : 5.45 MiB
Duration                                 : 5 s 672 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 8 060 kb/s
Movie name                               : Law and Order: SVU
Law rating                               : TV-14 (DLSV)

Video
ID                                       : 224 (0xE0)
Menu ID                                  : 1 (0x1)
Format                                   : MPEG Video
Format version                           : Version 2
Format profile                           : Main@High
Format settings                          : CustomMatrix / BVOP
Format settings, BVOP                    : Yes
Format settings, Matrix                  : Custom
Format settings, GOP                     : Variable
Codec ID                                 : 2
Duration                                 : 5 s 489 ms
Bit rate mode                            : Variable
Bit rate                                 : 7 273 kb/s
Maximum bit rate                         : 80.0 Mb/s
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.132
Time code of first frame                 : 00:00:00;00
Time code source                         : Group of pictures header
Stream size                              : 4.76 MiB (87%)

Audio #1
ID                                       : 4097 (0x1001)
Menu ID                                  : 1 (0x1)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
Codec ID                                 : 129
Duration                                 : 5 s 472 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 30 ms
Stream size                              : 128 KiB (2%)
Language                                 : English
Service kind                             : Complete Main

Audio #2
ID                                       : 4098 (0x1002)
Menu ID                                  : 1 (0x1)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Commercial name                          : Dolby Digital
Codec ID                                 : 129
Duration                                 : 5 s 472 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 30 ms
Stream size                              : 128 KiB (2%)
Language                                 : English
Service kind                             : Complete Main

Text #1
ID                                       : 224 (0xE0)-CC1
Menu ID                                  : 1 (0x1)
Format                                   : EIA-608
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)
CaptionServiceName                       : CC1

Text #2
ID                                       : 224 (0xE0)-CC3
Menu ID                                  : 1 (0x1)
Format                                   : EIA-608
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)
CaptionServiceName                       : CC3

Text #3
ID                                       : 224 (0xE0)-1
Menu ID                                  : 1 (0x1)
Format                                   : EIA-708
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)

Text #4
ID                                       : 224 (0xE0)-2
Menu ID                                  : 1 (0x1)
Format                                   : EIA-708
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 5 s 489 ms
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)

.TS gets it done for me.

John-Phillips wrote on 11/26/2020, 2:37 AM

I'm really unhappy with Vegas now and will not recommend it to anyone. I don't feel that I should have to faff around with code to restore something that used to work. I'm looking for a simple editing package that produces high quality results like Vegas used to.