5.1 audio importing as all mono instead of normal duel stereo duel mon

Alan-Innes wrote on 6/30/2024, 3:56 PM

So normally when I import a 5.1 video it has two stereo tracks and two mono. But for some reason ALL of the tracks are coming out as mono. Normally this happens when in the preferences I have it set to "import stereo as duel mono". But I don't. You can see in the screenshot present that the video on the left is in stereo so it isn't a problem with stereo imports. Its just a multi channel audio problem.

 

I have completely reset all preferences, imported fresh imports, switched audio drivers, disabled all possible preferences and done basically everything I can think of and the problem persists. This also happens on my laptop not just desktop. So does anyone know how to fix this.

 

Comments

DMT3 wrote on 6/30/2024, 4:33 PM

I don't know what the sources you normally use, but this is a fully usable scenario. Move the stereo track to its own audio track, then pan left and right the matched stereo tracks. So track 1 might be the left and track 2 the right, etc. Track 3 looks like it is the center track so leave it panned center, then the other tracks are possibly left and right rear channel. And last if you have a sub channel, leave it centered.

Alan-Innes wrote on 6/30/2024, 5:14 PM

I don't know what the sources you normally use, but this is a fully usable scenario. Move the stereo track to its own audio track, then pan left and right the matched stereo tracks. So track 1 might be the left and track 2 the right, etc. Track 3 looks like it is the center track so leave it panned center, then the other tracks are possibly left and right rear channel. And last if you have a sub channel, leave it centered.

Yeah I know. Its um, I have made a couple videos like this. Its just that I really much prefer working with it with four layers. It leaves me more stuff to move around on my screen, easier to manage and I can have a bigger preview window (Even though I have an entire preview monitor but still). So this is, more of an annoyance thing. But I want to fix it because I'm about to start work on a really big project and don't want to be annoyed the entire I'm working on it.

RogerS wrote on 6/30/2024, 9:04 PM

Is this build 315 of 21? Are the media sources MXF? Handling of those files seems to have changed post build 208.

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD and 2TB Samsung 980 Pro cache drive, Windows 11 Pro 64 bit

ASUS Zenbook Intel i9-13900H with Intel graphics iGPU with latest ASUS driver, NVIDIA 4060 (8GB) with latest studio driver, 48GB system ram, Windows 11 Home, 1TB Samsung SSD.

VEGAS Pro 21.208
VEGAS Pro 22.122

Try the
VEGAS 4K "sample project" benchmark (works with VP 16+): https://forms.gle/ypyrrbUghEiaf2aC7
VEGAS Pro 20 "Ad" benchmark (works with VP 20+): https://forms.gle/eErJTR87K2bbJc4Q7

Alan-Innes wrote on 7/1/2024, 6:50 AM

Is this build 315 of 21? Are the media sources MXF? Handling of those files seems to have changed post build 208.

315 yeah. And no they're just mp4s.

RogerS wrote on 7/1/2024, 7:03 AM

Could you upload a few seconds long sample somewhere (Google Drive, etc.) for testing purposes?

Does enable legacy AVC in preferences, file io help (assuming the media is AVC). It could be a workaround but may cause other issues.

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD and 2TB Samsung 980 Pro cache drive, Windows 11 Pro 64 bit

ASUS Zenbook Intel i9-13900H with Intel graphics iGPU with latest ASUS driver, NVIDIA 4060 (8GB) with latest studio driver, 48GB system ram, Windows 11 Home, 1TB Samsung SSD.

VEGAS Pro 21.208
VEGAS Pro 22.122

Try the
VEGAS 4K "sample project" benchmark (works with VP 16+): https://forms.gle/ypyrrbUghEiaf2aC7
VEGAS Pro 20 "Ad" benchmark (works with VP 20+): https://forms.gle/eErJTR87K2bbJc4Q7

Alan-Innes wrote on 7/1/2024, 7:47 AM

Could you upload a few seconds long sample somewhere (Google Drive, etc.) for testing purposes?

Does enable legacy AVC in preferences, file io help (assuming the media is AVC). It could be a workaround but may cause other issues.

I really don't know how I missed that in the preferences. I turned everything on and off, so I must have just missed it when doing that trial and error. But yeah that worked, well it was actually HEVC decoder since everything I use is HEVC. But yeah that worked.

God I'm an idiot.

RogerS wrote on 7/1/2024, 8:29 AM

If you could upload a file it would be good to get this fixed so you won't have to use a workaround.

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD and 2TB Samsung 980 Pro cache drive, Windows 11 Pro 64 bit

ASUS Zenbook Intel i9-13900H with Intel graphics iGPU with latest ASUS driver, NVIDIA 4060 (8GB) with latest studio driver, 48GB system ram, Windows 11 Home, 1TB Samsung SSD.

VEGAS Pro 21.208
VEGAS Pro 22.122

Try the
VEGAS 4K "sample project" benchmark (works with VP 16+): https://forms.gle/ypyrrbUghEiaf2aC7
VEGAS Pro 20 "Ad" benchmark (works with VP 20+): https://forms.gle/eErJTR87K2bbJc4Q7

Alan-Innes wrote on 7/1/2024, 10:38 AM

If you could upload a file it would be good to get this fixed so you won't have to use a workaround.

Well this, did fix it. All the files imported have the correct audio channel layout now whereas before they didn't. So no need. So my preferences should when in future being exported and imported have the correct settings. If you want I can export my preferences for you.

RogerS wrote on 7/1/2024, 7:48 PM

It's a workaround if you enabled experiential HEVC decoding. That will be phased out at some point.

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD and 2TB Samsung 980 Pro cache drive, Windows 11 Pro 64 bit

ASUS Zenbook Intel i9-13900H with Intel graphics iGPU with latest ASUS driver, NVIDIA 4060 (8GB) with latest studio driver, 48GB system ram, Windows 11 Home, 1TB Samsung SSD.

VEGAS Pro 21.208
VEGAS Pro 22.122

Try the
VEGAS 4K "sample project" benchmark (works with VP 16+): https://forms.gle/ypyrrbUghEiaf2aC7
VEGAS Pro 20 "Ad" benchmark (works with VP 20+): https://forms.gle/eErJTR87K2bbJc4Q7

Greg-Kintz wrote on 7/1/2024, 9:33 PM

Here is an mp4 (AVC video with AC3 5.1 audio) that in my version of Vegas 21 build 315 maps to six mono wavs instead of automatically mapping into the pairs as Alan had noted.

https://drive.google.com/file/d/1_tc8WCvJNQJtGhkxoxyQjFixK2cpMGWT/view?usp=sharing

If this could be fixed that would be great!

RogerS wrote on 7/1/2024, 10:13 PM

Thanks @Greg-Kintz. In 21.208 I see just one video with one audio- is that how it should be or is that wrong too?

Custom PC (2022) Intel i5-13600K with UHD 770 iGPU with latest driver, MSI z690 Tomahawk motherboard, 64GB Corsair DDR5 5200 ram, NVIDIA 2080 Super (8GB) with latest studio driver, 2TB Hynix P41 SSD and 2TB Samsung 980 Pro cache drive, Windows 11 Pro 64 bit

ASUS Zenbook Intel i9-13900H with Intel graphics iGPU with latest ASUS driver, NVIDIA 4060 (8GB) with latest studio driver, 48GB system ram, Windows 11 Home, 1TB Samsung SSD.

VEGAS Pro 21.208
VEGAS Pro 22.122

Try the
VEGAS 4K "sample project" benchmark (works with VP 16+): https://forms.gle/ypyrrbUghEiaf2aC7
VEGAS Pro 20 "Ad" benchmark (works with VP 20+): https://forms.gle/eErJTR87K2bbJc4Q7

Greg-Kintz wrote on 7/1/2024, 10:38 PM

This is how the channel ID test MP4 looks when dropped in build 315

As Alan noted, they show as six mono wav files vs being paired and already mapped for 5.1.

To be fair though ...and my compliments to the Magix team.. I don't believe previous versions of Vegas (19 and back) would even open MP4 files with AC3 5.1. MP4s with AAC 5.1 - yes. But not MP4 with 5.1 AC3 Dolby Digital. Oddly enough, most m2ts and ts files with AC3 would open in earlier versions of Vegas, but not when muxed as an MP4.

Note that Vegas 21 build 315 *does* correctly map other audio formats in the paired method and mapped for 5.1. For example, here is a wav64 5.1 track that automatically goes into the paired and mapped for 5.1 format when dropped into the timeline:

Hope this helps.

john_dennis wrote on 7/1/2024, 11:33 PM

This file appears to be DTS Master Audio?

Here is how the mono tracks should be labeled after mapping with the surround sound pan sliders.

Here is an example of AC3 in various wrappers from ATSC OTA broadcasts for Vegas 13 and Vegas 21-315.

Same Content, Different Wrappers

General
ID                                       : 1 (0x1)
Complete name                            : E:\Cut This\Grizzly Flats - Transport Stream ts.ts
Format                                   : MPEG-TS
File size                                : 1.20 GiB
Duration                                 : 18 min 35 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 9 248 kb/s
Frame rate                               : 59.940 FPS

Video
ID                                       : 224 (0xE0)
Menu ID                                  : 1 (0x1)
Format                                   : MPEG Video
Commercial name                          : HDV 720p
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                                 : 18 min 35 s
Bit rate mode                            : Variable
Bit rate                                 : 8 209 kb/s
Maximum bit rate                         : 17.6 Mb/s
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Active Format Description                : Full frame 16:9 image
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)                       : 0.149
Time code of first frame                 : 19:09:01;19
Time code source                         : Group of pictures header
GOP, Open/Closed                         : Open
Stream size                              : 1.07 GiB (89%)

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                                 : 18 min 35 s
Bit rate mode                            : Constant
Bit rate                                 : 384 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 29 ms
Stream size                              : 51.1 MiB (4%)
Language                                 : English
Service kind                             : Complete Main
Dialog Normalization                     : -24 dB
compr                                    : 1.02 dB
cmixlev                                  : -3.0 dB
surmixlev                                : -3 dB
dmixmod                                  : Lt/Rt
ltrtcmixlev                              : -3.0 dB
ltrtsurmixlev                            : -3.0 dB
lorocmixlev                              : -3.0 dB
lorosurmixlev                            : -3.0 dB
dialnorm_Average                         : -24 dB
dialnorm_Minimum                         : -24 dB
dialnorm_Maximum                         : -24 dB

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                                 : 18 min 35 s
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                  : 29 ms
Stream size                              : 25.5 MiB (2%)
Language                                 : English
Service kind                             : Complete Main
Dialog Normalization                     : -24 dB
compr                                    : 0.53 dB
ltrtcmixlev                              : -3.0 dB
ltrtsurmixlev                            : -3.0 dB
lorocmixlev                              : -3.0 dB
lorosurmixlev                            : -3.0 dB
dialnorm_Average                         : -24 dB
dialnorm_Minimum                         : -24 dB
dialnorm_Maximum                         : -24 dB

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                                 : 18 min 35 s
End time                                 : 18 min 35 s
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)

Text #2
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                                 : 18 min 35 s
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)

This a complete thought experiment to me. I don't care anything about surround sound. I recently bought a good two channel receiver.*

* Sony STR-DA1800ES available to the first person who pays for shipping.

Greg-Kintz wrote on 7/1/2024, 11:51 PM

My test clip is not a DTS file. Vegas doesn't work with DTS-MA files of any kind. As stated previously it is an AC3 5.1 file. I used this particular clip as it used test tones but my apologies if it caused any confusion.

As Alan stated in his first post, yes .. the AC3 MP4s of course can be manually mapped, but doing so each and every time gets tiresome when the program normally does it for you.

Had also confirmed Vegas handles other muxed AC3 formats properly. I'm pretty sure they will get this fixed.

john_dennis wrote on 7/2/2024, 2:17 AM

@Greg-Kintz

I rewrapped your file into an m2ts wrapper with an old program called tsMuxer and the resulting file opened as you expect in Vegas Pro 21-315.

Alan-Innes wrote on 7/3/2024, 5:06 PM

This is how the channel ID test MP4 looks when dropped in build 315

As Alan noted, they show as six mono wav files vs being paired and already mapped for 5.1.

To be fair though ...and my compliments to the Magix team.. I don't believe previous versions of Vegas (19 and back) would even open MP4 files with AC3 5.1. MP4s with AAC 5.1 - yes. But not MP4 with 5.1 AC3 Dolby Digital. Oddly enough, most m2ts and ts files with AC3 would open in earlier versions of Vegas, but not when muxed as an MP4.

Note that Vegas 21 build 315 *does* correctly map other audio formats in the paired method and mapped for 5.1. For example, here is a wav64 5.1 track that automatically goes into the paired and mapped for 5.1 format when dropped into the timeline:

Hope this helps.

I went from vegas 15 to 20 then 21. Vegas 15 was able to open 5.1 audio. I never exported anything in it but could work with it just fine. I don't know if maybe 19 had a bug preventing it being used or something but was definitely around at 15.

snibchi1 wrote on 7/4/2024, 6:19 AM

@Greg-Kintz

I rewrapped your file into an m2ts wrapper with an old program called tsMuxer and the resulting file opened as you expect in Vegas Pro 21-315.

Thanks for the tip with tsMuxeR. The result is upside down for me. Is there a solution?

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john_dennis wrote on 7/4/2024, 9:36 AM

@snibchi1 said: "The result is upside down for me."

I expect that tsMuxer is impartial about track order. I don't know.

An Interesting Aside

Shutter Encoder includes tsMuxeR.exe in its library but doesn't present the option to rewrap to .m2ts in the menu.

Rewrapping to .mts in Shutter Encoder appears to get the same result.