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Knowledge Base
Support
Knowledge Base
General
Changing Registration Key
Can licenses be installed on more than one PC?
Can vMix run on a Mac?
Are Interlaced sources supported?
Do you offer a Reseller Program?
Is a white label option available for vMix?
Does vMix support Windows Server?
What languages does vMix support?
Upgrades
PowerPoint Animations and Transitions
Which edition of vMix do I need?
vMix Content Use Policy
Which edition is the Trial?
Is Educational pricing available?
Do I need to pay a subscription to use vMix?
What does Total Inputs and Camera Inputs mean in each edition?
Lost Registration Key
Submitting Feature Suggestions
How do I transfer my registration key license?
Why do I only see 1 overlay channel in vMix?
Performance
Latency
Video files playback too fast or too slow
Optimising Performance
Screen tearing
Fullscreen Performance
Temporarily disabling Windows Update in Windows 10
Setting up vMix to use dedicated graphics in NVIDIA Optimus laptops
vMix inputs may flicker on some laptops
Diagnosing High Render Times
What is the Warning CPU GPU Overloaded message at the bottom of vMix?
How G-SYNC improves Laptop performance
vMix Diagnostics
Hardware Encoding with NVIDIA Graphics
vMix and Virus Scanners / Security Software
What does the GPU Mem indicator mean in the vMix status bar?
How to adjust the Windows DPI scaling
Diagnosing USB connection issues
AMD CPU support in vMix
vMix in the cloud on Amazon EC2 - Quick Overview
What do the usage / performance statistics in the bottom left corner of vMix mean?
Why does my Webcam have a slow frame rate?
Why is my video mirrored or flipped in video conferencing apps?
Streaming
Streaming with AAC audio for FMLE
Streaming settings for YouTube Live- Events
Local Network Streaming
Can I stream to Livestream?
Streaming CDN API
Streaming with VLC
Streaming with protocols such as Transport Stream or UDP
Diagnosing Streaming Errors
Using vMix output in Google Hangouts
Live Streaming Software
Streaming to Twitch
Streaming with FFMPEG may not work when URL contains "definst"
Why does the Stream button sometimes show orange or amber?
vMix streaming to YouTube Live
How do I stream to Facebook Live with vMix?
Streaming to an event created on a Facebook business page
How to live stream to Twitter and Periscope
Facebook Live Privacy Settings Overview
Disabled button appears when attempting to login to Facebook
Why can't I stream to other providers when streaming to Facebook?
Understanding FFMPEG streaming logs
Can I stream to Instagram?
YouTube is currently processing the last stream message
Facebook Page does not appear in vMix / How to reset the Facebook security settings.
Using RTMPS with vMix
How to embed your live stream onto your website.
Creating a new YouTube Live Stream Now stream using the old classic interface
Creating a new YouTube Live Stream using the new YouTube Studio interface
Can I stream to more than one streaming provider at a time?
Crossposting a Live Stream Video To Facebook using vMix
Vimeo recurring event does not show up in vMix.
Capture
Is my Capture Device supported?
Simultaneous Input and Output on a Decklink Card
Issues with multiple USB capture devices
Why do I see a blank screen or error when using a Blackmagic card?
Is the Intensity Shuttle USB 3.0 supported?
Using the AJA Io 4K in vMix
Can I use the ATEM Television Studio with vMix?
How to map the Blackmagic Decklink Quad2 to be 8 channels
Webcam Access Denied Error
What does PsF mean?
IP Camera Support
Error when adding Elgato Game Capture input to vMix
Guides
Creating a simple chroma key setup in vMix
Repairing a corrupt configuration file
How to connect cameras to vMix
How to control Scoreboards in vMix with the Keyboard
How to control vMix from a web browser using vMix Web Controller
Changing the default vMix decoder for MP4 videos to FFMPEG
Does vMix support X-keys?
PTZ Controls in vMix
Adding Skype calls to vMix with return video and audio
How to check if you are eligible for a free vMix version update
How to update vMix to the latest version
Tally Lights with Arduino Mega 2560
Setting up Elgato Capture Devices with vMix
What is ISO recording? Does vMix support it?
How to add vMix to the list of allowed apps for streaming to Facebook Groups
Adding Zoom calls to vMix with return video and audio
Selecting a custom MIDI Channel for X-Keys controllers
Purchasing a vMix Version Upgrade
Using the Elgato Stream Deck with vMix
vMix Hamburger Menu
Using the DeckLink 8K Pro in 4 Channel 4K mode
X-keys USB GPIO Instructions
Enabling High-DPI display support in vMix
Sending and receiving between vMix and Easyworship using NDI
Sending and receiving between vMix and ProPresenter using NDI
How to use Google Sheets with vMix Data Sources
Adding Zoom calls to vMix from the same computer
How to send a virtual camera (vMix Video) output to third party apps and web browsers
Importing PowerPoint slides manually into vMix
File Types
Playing QuickTime files in vMix
No audio when playing certain video files and DVDs
How to convert a Video into an Image Sequence
Playing DVDs, HDV and MPEG-2 videos in vMix under Windows 8.1 and Windows 10
Animated Gifs in vMix
Recording
Enabling custom AVI codecs
Recordings in FFMPEG MOV or MP4 formats may not play correctly in some programs
Supported MP4 recording formats in Windows 7
HEVC recording error on Windows 10
MP4 recording suddenly stopped Windows 7
Desktop Capture
You may receive a "can't be opened" error when opening vMix Desktop Capture for OSX
Blank screen when using Desktop Capture
Desktop Capture Performance
Setting up Mac firewall for vMix Desktop Capture
NDI and vMix Desktop Capture CPU compatibility
Error when opening vMix Desktop Capture for Mac
Error when using vMix Desktop Capture on Windows 7
Allowing permissions for vMix Desktop Capture for Mac to access your Screen
No sound when using Local Desktop Capture
Titles
How do I insert the current date and time into a title?
Adding Bible Verses to vMix
vMix Clock and Timer Options
Animated titles in vMix
Errors
Class not registered error when starting vMix
Error when adding PowerPoint input
Flash Player crash when adding Flash/RTMP input in Windows 10
Blank screen when using Web Browser input on laptop with Nvidia Optimus graphics
Current AMD Issues
Exception code c000001d when using vMix and NDI on Windows 7
Font error when using Titles in vMix
WPF Timed Out Error when adding Titles
Stream Error when receiving some Transport over UDP streams
vMix closes with error message when opening recording settings after Windows 10 update KB4013429
Streaming error Could not enumerate system devices
DLL error when starting recording and blank inputs
Unable to generate a temporary class error
Why do I get a D3DERR_INVALIDCALL: Invalid call error in vMix?
Access is denied error when trying to add an Audio Input
The device does not recognize the command when trying to input an Avermedia capture device
Display may flicker when playing back videos
Disjointed, corrupted, blocky or blank video when using High Input Performance Mode
Invalid Cast error when using GT Designer on Windows 7
Unable to login to Periscope
GT inputs show up as blank
Why doesn't the Fullscreen dropdown menu work?
D3DERR_INVALIDCALL error on laptops
What does "Insufficient system resources exist to complete the requested service" mean when adding multiple Webcams?
Quota exceeded error when connecting to YouTube with vMix or vMix Social.
Error when trying to login to Twitch streaming in vMix 21
Incorrect IP address in Web Controller settings
Virtual Sets
vMix Virtual Set Specification 1.0
Adding graphics and logos to an existing Virtual Set
How to change Virtual Set zoom positions (angles) using shortcuts
Training Videos
Fullscreen Output
Recording
Live Streaming
Virtual Sets
General Overview and Demonstration
vMix Web Controller
Stinger Transitions
Shortcuts
The vMix Interface
Data Sources
How to use triggers
Streaming to Facebook Live
Chroma Key and Green Screen
External Output
NDI Output
How to use Overlays
Downloads
vMix Thunder Downloads
vMix Control Surface Download and User Guide
Arduino Tally Lights Setup Guide
Installing VLC for vMix
How to upgrade to vMix 22 and vMix GT.
Trial
vMix Phone Number
Orders
How to enter in a business VAT ID when ordering vMix software
What is the process to purchase vMix?
Can I purchase vMix on behalf of a customer?
How can I get a quote for vMix?
Adding a vendor for purchases
How to request a Sales Tax refund
How to request a VAT refund
Audio
ASIO Audio Support in vMix
Sending system audio from a Mac system running vMix Desktop Capture for NDI
Linking an Audio Input with a Camera
Changing the default vMix decoder for MP3 files to FFMPEG
Recording the system audio in vMix
Audio problems when using N version of Windows
Facebook Stream Audio very low, muted or missing
vMix API Audio Levels
Error 0x88890008 when adding an Audio Input
Audio Formats in vMix
Web Browser Input Audio Not Working
Audio output becomes disabled when using ASIO audio input
Shure MVi low pitch / audio speed up issue
Send a virtual audio output out of vMix using Virtual Audio Cable
How to set an audio delay to sync your audio and video together
Why does my audio turn off when switching between inputs?
Skype audio cutting out or low volume when used with vMix
Mix Minus Basics and Troubleshooting
Changing audio source of Elgato HD60S+ between HDMI and Analog
Scheduling
Does vMix support scheduling?
Scripting / API
Delay when using PHP DomDocument to load vMix API
Bulk shortcuts using Scripting and API
Scripting Example: Add last recording to vMix as an input
X-keys HD15 USB Wire Interface
Instant Replay
JLCooper ES SloMo J USB with vMix Replay
How to add shortcuts for the replay -5 -10 and -20 buttons.
NDI
Setting up CasparCG with NDI to send the output to vMix
Diagnosing blank NDI inputs
Setting up ProPresenter 6 with NDI using Syphon (Mac)
PowerPoint slides sometimes do not update when using vMix Desktop Capture for NDI
No audio in Skype or Zoom when using NDI Virtual Input
Same video feed from two NDI-HX cameras
vMix Call
vMix Call Firewall Requirements
Diagnosing connection issues with vMix Call
vMix Call Low Latency Mode
vMix Call Direct Connection Mode
Only 2 vMix Calls in vMix 4K
Multiple recording files when using MultiCorder with vMix Call
Slow frame rate when using iPhone or iPad with vMix Call
vMix Call Audio Quality
vMix Call Security
How to setup push button talkback for vMix Call
PTZ
Configuring the Sony SRG series for VISCA over IP PTZ support
PTZ Speed Control Support
vMix Social
vMix Social title does not update correctly
vMix Social Facebook Limitations
Resetting Facebook Login for vMix Social
Blank screen when logging in to Facebook in vMix Social
SRT
HEVC error in SRT with extension installed
Diagnosing SRT Connections
