[Resolved] No Audio in project

ChrisD wrote on 6/24/2022, 9:25 PM

I have a bunch of source material remastered in Cineform (be gentle, it has been part of my workflow for years. 😬)

When I add them to the timeline, there is no audio track. Yet they play nice in Windows Media Player.

I honestly can't recall whether they worked in previous Vegas builds, but they certainly did at one time.

Selecting the file in Vegas explorer says: Audio: Stream attributes could not be determined, Uncompressed.

I must be missing something obvious? Anyone have any hints?

system info
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i7 4790
RTX 3060TI (studio driver 512.96)
Vegas 19 (Build 643)
Win10 Pro
(F:) SSD

mediainfo
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General
Complete name                      : F:\Test Video\DSCF0180.avi
Format                                   : AVI
Format/Info                            : Audio Video Interleave
Format profile                         : OpenDML
File size                                : 2.06 GiB
Duration                                 : 39 s 39 ms
Overall bit rate                         : 454 Mb/s
Writing library                          : VirtualDub2 build 44282/release

Video
ID                                       : 0
Format                                   : CineForm
Codec ID                                 : CFHD
Codec ID/Info                            : CineForm 10-bit Visually Perfect HD (Wavelet)
Duration                                 : 39 s 39 ms
Bit rate                                 : 451 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:2
Bit depth                                : 10 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 1.814
Stream size                              : 2.05 GiB (99%)

Audio
ID                                       : 1
Format                                   : PCM
Format profile                           : Float
Codec ID                                 : 00000003-0000-0010-8000-00AA00389B71
Codec ID/Hint                            : IEEE 
Duration                                 : 39 s 39 ms
Bit rate mode                            : Constant
Bit rate                                 : 3 072 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Bit depth                                : 32 bits
Stream size                              : 14.3 MiB (1%)
Alignment                                : Aligned on interleaves
Interleave, duration                     : 34  ms (1.01 video frame)
Interleave, preload duration             : 500  ms

Comments

john_dennis wrote on 6/24/2022, 10:25 PM

I'd start by using Shutter Encoder to re-encode just the audio to something from this universe and add it to the Vegas Project. Re-group the events.

If you find that tedious, batch re-encode all your media to one of the ProRes flavors in Shutter Encoder.

ChrisD wrote on 6/25/2022, 12:13 AM

Agreed. I will probably have to re-encode the audio, but I am still curious.

The previous example was transcoded from h.265 (Fuji XT4).

From another session, dumped from DV AVI -- with no sound issues, as far as I can tell the differences are the format profile, weird codec id, sample rate, and 32 v. 16 bit.

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good audio
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Audio
ID                                       : 1
Format                                   : PCM
Format settings                          : Little / Signed
Codec ID                                 : 1
Duration                                 : 49 min 24 s
Bit rate mode                            : Constant
Bit rate                                 : 1 024 kb/s
Channel(s)                               : 2 channels
Sampling rate                            : 32.0 kHz
Bit depth                                : 16 bits
Stream size                              : 362 MiB (3%)
Alignment                                : Aligned on interleaves
Interleave, duration                     : 33  ms (1.00 video frame)
Interleave, preload duration             : 500  ms
------

I am not sure what Vegas is tripping-up on, but my suspicion is the Codec ID and Hint.

 

RogerS wrote on 6/25/2022, 8:27 AM

Cineform with 32-bit float audio may not be a combination Vegas accepts. If you are still making Cineform files you might experiment with settings that work well in Vegas.

I doubt there is any way to make Vegas read this file (no such settings I am aware of) so you are left having to re-encode.

For the second one I'm not sure how you got a 32 khz sample rate- can you try to do more standard settings for video like 16 bit/ 48 kHz? Settings do matter when you are re-encoding.

rraud wrote on 6/25/2022, 10:27 AM

The Cineform file is a floating point 32 bit file which VP cannot read for some reason. I have opened floating point 32 bit PCM Files (Broadcast Wave BWF) before in earlier versions of VP . Next time get a non-floating 24 bit PCM audio file.

Most DAWs and soundcards can playback 32kHz sample rate file, though it is a bit low for music (max high frequency 16kHz).

ChrisD wrote on 6/25/2022, 11:06 AM

Settings do matter when you are re-encoding.

Heh. Indeed.

I cut my curiosity losses and ran the broken videos through VirtualDub, setting the audio stream to 16-bit Stereo, 48khz. Half an evening and a medium-strength beverage - fixed and done.

Old habits die hard, but at least with Cineform I trust that I can re-encode several times with zero visual loss.

DMT3 wrote on 6/25/2022, 11:31 AM

really no need to re-encode video. Using VirtualDub you can save the audio as WAV and then import the original video and new audio into Vegas.

ChrisD wrote on 6/25/2022, 11:54 AM

really no need to re-encode video.

Understood. 😀

It seems the issue was with 4K h.265 .mov, which are always a challenge to grade and edit natively.

I do squirrel away the originals, but with those I always transcode working copies to uncompressed Cineform -- I have the disk space, and editing/grading is buttery smooth; and then out to delivery format. My preference is the convenience of a single .AVI, and not having to think about synch issues.

My workflow hasn't changed since Vegas 8 (I swear it used to work), so one of these days I should review it. At least now I can move on to grading the audio.
 

rraud wrote on 6/25/2022, 12:11 PM

really no need to re-encode video

+11... do not re-encode the picture when it is not necessary. Even in situations where the video must have an embedded audio track, the audio can be muxed in, so the picture remains untouched and no waiting for the picture to re-render.

john_dennis wrote on 6/25/2022, 12:35 PM

@ChrisD

It's 2022.

Look at ProRes within Vegas 19

or MagicYUV RGBA within Vegas 19

or many different options in Shutter Encoder

You could Tools/Scripting/Batch Render from a Vegas Pro session while you consumed your favorite beverage after that long shoot.