I get that also on certain WAVs I've downloaded. Vegas has gotten more picky with audio file types, where all the other editors, all the other players simply play back these files just fine. I'm assuming its just all the crazy advanced audio stuff I have installed, but seems funny the only software affected by that is Vegas's audio.

Some parts of the static seem to be made up of other audio files as if Vegas is jumbling the sounds while it tracks it for PROJECT MEDIA. Just my uneducated guesswork there. Maybe clearing/resetting that cache would fix?

I'll resave them in REAPER as a new WAV or MP3 and they work fine. Just extra steps I don't recall needing back in 12 or 13.

"I'll resave them in REAPER as a new WAV or MP3"

Use WAV. MP3 is lossy and can fork up sync.

If there's no stereo content, (identical audio on both tracks) converting to a single channel mono WAV file will half the file size and lighten the processing load, especially if there are FX applied to the event or track.

Here is the media info info:

General
Complete name                            :
Format                                   : MPEG-4
Format profile                           : QuickTime
Codec ID                                 : qt   0000.00 (qt  )
File size                                : 268 MiB
Duration                                 : 2 min 8 s
Overall bit rate                         : 17.4 Mb/s
Encoded date                             : UTC 2018-06-01 21:26:55
Tagged date                              : UTC 2018-06-01 21:27:01
Writing library                          : Apple QuickTime
com.apple.quicktime.make                 : Apple
com.apple.quicktime.model                : MacBookAir6,2
com.apple.quicktime.software             : Mac OS X 10.10.5 (14F2311)
com.apple.quicktime.creationdate         : 2018-06-01T14:24:14-0700

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4.2
Format settings                          : CABAC / 1 Ref Frames
Format settings, CABAC                   : Yes
Format settings, RefFrames               : 1 frame
Format settings, GOP                     : M=1, N=30
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 2 min 8 s
Source duration                          : 2 min 9 s
Bit rate                                 : 15.8 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 36.822 FPS
Minimum frame rate                       : 15.000 FPS
Maximum frame rate                       : 60.484 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.207
Stream size                              : 242 MiB (90%)
Source stream size                       : 244 MiB (91%)
Title                                    : Core Media Video
Encoded date                             : UTC 2018-06-01 21:26:55
Tagged date                              : UTC 2018-06-01 21:27:01
Color range                              : Full

Audio
ID                                       : 2
Format                                   : PCM
Format settings                          : Big / Signed
Codec ID                                 : lpcm
Duration                                 : 2 min 8 s
Source duration                          : 2 min 8 s
Bit rate mode                            : Constant
Bit rate                                 : 1 536 kb/s
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 kHz
Bit depth                                : 16 bits
Stream size                              : 23.6 MiB (9%)
Source stream size                       : 23.6 MiB (9%)
Title                                    : Core Media Audio
Encoded date                             : UTC 2018-06-01 21:26:55
Tagged date                              : UTC 2018-06-01 21:27:01

here is the Vegas Properties info:

General
  Name: covered_music.mov
  Folder:
  Type: AVC
  Size: 274.04 MB (280,620,649 bytes)
  Created: Friday, June 1, 2018, 3:42:46 PM
  Modified: Friday, June 1, 2018, 2:27:00 PM
  Accessed: Friday, June 1, 2018, 3:42:46 PM
  Attributes: Archive

Streams
  Video: 00:02:08.755, 36.822 fps progressive, 1920x1080x32, AVC
  Audio: 00:02:08.699, 48,000 Hz, Stereo, PCM

Summary
  [TCFM]: 1

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: so4compoundplug.dll
  Folder: C:\Program Files\VEGAS\VEGAS Pro 15.0\FileIO Plug-Ins\so4compoundplug
  Format: AVC
  Version: Version 1.0 (Build 8532)
  Company: MAGIX Computer Products Intl. Co.

I will try and upload a sample file later.

Tech support responded to me. The issue was with the so4compoundplug.dll plug-in. I disabled that and restarted, then the QT plug-in kicked in and read the audio fine. In case anyone else has the same issue.

@jason-painter Thanks for the info and update. Do you know how that file was generated?

I've disabled my so4 dll, and pretty sure I still have QT, but will reinstall QT and see if that fixes mine too

[[MENTION:undefined]]Nick Hope - the file was a screen capture of an iPhone, captured using Quicktime.

[[MENTION:72427]] - from your description, I don't believe we are having the same issue.

ShaneJ had a similar issue reported here in VP15 build 361 with audio in MOV files recorded by his Kodak V550 digital camera, also solved by disabling so4compoundplug. Seems like there may be a new issue in build 361, with audio decoding in certain types of MOV file.

@jason-painter / @jepainter / @ShaneJ If you could guys share a sample (e.g. on Dropbox, Google Drive, OneDrive, mega.nz, wetransfer.com or mediafire.com) we could link the appropriate developer to it to take a look and try and get the issue fixed.

All my footage is confidential stuff. But I can probably recreate something that will fail in the same way with something generic on the iphone.

I created another file that has the same issue. You can find it here . . . https://www.dropbox.com/s/jn8np0f0p7w0k0y/so4compoundplug_issue_testfile.mov?dl=0

I am forwarding it on to tech support as well.

Thank you. I confirmed your issue in VP15 build 361. It's fine in VP14 build 270.

I'll link a developer to it directly, so please leave the file online for a few days so that they can pick it up.

You can solve this by either completely disabling so4compoundplug, or, if you want to retain native support in Vegas for iPhone videos etc., by changing the content of C:\Program Files\VEGAS\VEGAS Pro 15.0\FileIO Plug-Ins\so4compoundplug\so4_blacklist_vp15.xml to this:

<?xml version="1.0" encoding="utf-8"?>
<filter_expr type="OR" comment="exclude IDR/I files where M = 1">
    <video Title="DJI.AVC" />
    <video Title="GoPro AVC" />
    <video Title="XiaoYi AVC " />
    <!-- Formats below added by user -->
    <video Title="Core Media Video" />
</filter_expr>

...and moving it to this folder: C:\Program Files\VEGAS\VEGAS Pro 15.0\ and restarting Vegas. More details about this process in this post.

You'll need Quicktime for Windows installed for either option.