Vegas Pro 15 and Xiaomi Yi 4k+ audio issue

bryan-quarrie wrote on 8/28/2017, 1:35 PM



I have recently shot some short clips with the Yi 4k+ camera, using 2.7k 50p and 1080p 50p resolutions and the audio sounds crackly when I play the clips either on the timeline, or when previewing them from the media bin


The original audio cannot be heard, but a weird crackly sound (as if Vegas was having issues connecting with the sound output - sorry, best way to describe it). The waveforms for these clips are displayed however.


(The clips play perfectly on Vegas Pro 14.)


Any reasons why this problem occurs?


Regards, Bryan.


My sistem specs:

AMD Rizen 7 1700 CPU (not overclocked)


Focusrite Scarlett 18i8 USB audio interface

AMD R9 290X graphics card (4GB)

External usb hdd Seagate Expansion USB 3.0 (7200rpm).


Please note that I dont get this audio problem with my other cameras which include a Sony X3000, and an AX100.


Many thanks.


NickHope wrote on 8/28/2017, 1:51 PM


  • Post the MediaInfo text report of your source media.
  • Post the VEGAS Files Properties of your source media (the MediaInfo guide linked above shows you how) so we know which decoder is being used.
  • If the media is not too large you could post a link to a sample of it, for example on Google Drive or Dropbox.
bryan-quarrie wrote on 8/28/2017, 3:20 PM

Hi, here's the mediainfo details:


Complete name                            : N:\yi test clips 18-8-2017\YI008805.MP4
Format                                   : MPEG-4
Format profile                           : JVT
Codec ID                                 : avc1 (avc1/isom)
File size                                : 3.66 GiB
Duration                                 : 6 min 58 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 75.1 Mb/s
Encoded date                             : UTC 2017-08-18 11:35:36
Tagged date                              : UTC 2017-08-18 11:35:36

ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L5.1
Format settings, CABAC                   : Yes
Format settings, RefFrames               : 1 frame
Format settings, GOP                     : M=1, N=8
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 6 min 58 s
Bit rate mode                            : Variable
Bit rate                                 : 75.0 Mb/s
Width                                    : 2 720 pixels
Height                                   : 1 520 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 50.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.363
Stream size                              : 3.66 GiB (100%)
Title                                    : XiaoYi AVC   
Language                                 : English
Encoded date                             : UTC 2017-08-18 11:35:36
Tagged date                              : UTC 2017-08-18 11:35:36
Color range                              : Full
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 6 min 58 s
Bit rate mode                            : Constant
Bit rate                                 : 128 kb/s
Nominal bit rate                         : 48.0 kb/s
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 6.39 MiB (0%)
Title                                    : XiaoYi AAC   
Language                                 : English
Encoded date                             : UTC 2017-08-18 11:35:36
Tagged date                              : UTC 2017-08-18 11:35:36



File properties as shown in Vegas Pro 15:

  Name: YI008805.MP4
  Folder: N:\yi test clips 18-8-2017
  Type: Intel HEVC
  Size: 3.84 GB (3,932,712,111 bytes)
  Created: 18 August 2017, 14:52:23
  Modified: 18 August 2017, 11:42:44
  Accessed: 28 August 2017, 21:07:15
  Attributes: Archive

  Video: 00:06:58.720, 50.000 fps progressive, 2720x1520x32, AVC
  Audio: 00:06:58.665, 48,000 Hz, Stereo, AAC

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

  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.


Unfortunately due of the confidential nature of the clip, I can't share it online.


Thanks Nick,




set wrote on 8/28/2017, 5:51 PM

Rerecord the neutral short clip with Yi 4k+ without showing any confidential subjects or objects.

Setiawan Kartawidjaja
Bandung, West Java, Indonesia (UTC+7 Time Area)

Personal FB | Personal IG | Personal YT Channel
Chungs Video FB | Chungs Video IG | Chungs Video YT Channel
Personal Portfolios YouTube Playlist
Pond5 page: My Stock Footage of Bandung city


System 5-2021:
Processor: Intel(R) Core(TM) i7-10700 CPU @ 2.90GHz   2.90 GHz
Video Card1: Intel UHD Graphics 630 (Driver (Feb 1 2024 Release date))
Video Card2: NVIDIA GeForce RTX 3060 Ti 8GB GDDR6 (Driver Version 551.23 Studio Driver (Jan 24 2024 Release Date))
RAM: 32.0 GB
OS: Windows 10 Pro Version 22H2 OS Build 19045.3693
Drive OS: SSD 240GB
Drive Working: NVMe 1TB
Drive Storage: 4TB+2TB


System 2-2018:
ASUS ROG Strix Hero II GL504GM Gaming Laptop
Processor: Intel(R) Core(TM) i7 8750H CPU @2.20GHz 2.21 GHz
Video Card 1: Intel(R) UHD Graphics 630 (Driver
Video Card 2: NVIDIA GeForce GTX 1060 6GB GDDR5 VRAM (Driver Version 537.58)
OS: Win11 Home 64-bit Version 22H2 OS Build 22621.2428
Storage: M.2 NVMe PCIe 256GB SSD & 2.5" 5400rpm 1TB SSHD


* I don't work for VEGAS Creative Software Team. I'm just Voluntary Moderator in this forum.

NickHope wrote on 8/28/2017, 10:11 PM

Try this:

  1. Hold down the SHIFT key while opening Options > Preferences
  2. Click the Internal tab
  3. In the field "Show only pref containing:" file type "So4" without the quotes
  4. Set "Enable So4 Compound Reader for AVC/M2TS" to FALSE.
  5. OK > Restart
  6. Please let us know if it helps
bryan-quarrie wrote on 8/28/2017, 11:46 PM

It works!


Thank you very much both of you.


Regards, Bryan

NickHope wrote on 8/29/2017, 12:36 PM

@bryan-quarrie The developers have asked for a sample so they can look into the issue, so if you have anything you can share on Google Drive, Dropbox, etc. it would be appreciated. I understand if you can't because of confidentiality.

bryan-quarrie wrote on 8/29/2017, 1:03 PM

No problem Nick.


Here is a neutral clip using the same recording settings:


Regards, Bryan

altarvic wrote on 8/29/2017, 2:56 PM

I confirm this bug

NickHope wrote on 8/30/2017, 1:05 AM

No problem Nick.

Here is a neutral clip using the same recording settings:

Regards, Bryan

Thanks very much Bryan. I see the audio issue also with this file. I have alerted the developers to your link.

HasanKhurshid29 wrote on 1/24/2018, 12:48 PM

is this bug resolved

NickHope wrote on 1/24/2018, 11:50 PM

is this bug resolved

@HasanKhurshid29 In VP15 build 261 this type of file should now open automatically with the older compoundplug codec instead of so4compoundplug, without having to do that yourself in internal preferences. So the audio issue should not occur.

HasanKhurshid29 wrote on 1/25/2018, 10:03 AM

Ok Thanks Nick