Knowledge Base


This is only verified on Ubuntu 18.04 and requires 64bit version.

Minimum Requirements: resolution of 1920x1080 for your primary screen, and graphics card with drivers able to run version 4 of OpenGL shaders. Suggest installing the latest graphic drivers and recommend the system uses an SSD Drive.

You will need FFmpeg installed. sudo apt update;  sudo apt-get install ffmpeg;

If you have trouble importing a file (e.g. mp4), you could review:
which amounts to trying this: sudo apt-get install ubuntu-restricted-extras

Some OS distributions don't have the certain libraries installed by default, these should be detected missing and listed on the splash screen for you to install via your package manager. The deployment is not fool proof yet, therefore for reference, as well as ffmpeg,  IQSynth relies on the following libraries: sqlite3, libfreetype, libpng, libjpeg.

Known issues are listed below

If you can not find an answer, wish to report an issue or ask a question, please email contact@iqsynth for support.

Or review the bug report page that Marc from kindly set up for this here on github

Latest release notes and download here.

Known Issues are listed below (simple list at this time).

High Priority

1. Problems detecting / selecting OpenGL version on some drivers (difficult to chase due to limited resources)

Mid Priority

1. Text entry sometimes does not accept key presses unless cursor is left over control

Low Priority

1. Everything else!

General Notes:

As of 29th Aug 2019, v 0.15.0 updated plugin system and released all available plugins

As of 30th Jan 2019, v 0.10.5 updated plugin collection, should run better on NIVIDA setups .

As of18th Dec 2018, v 0.9.17 includes a security update for the SQLite component.

As of 24 Sept 2018, v 0.9.4 no longer requires libGLEW, this was causing the application to stall at startup.

To Do List (no particular order, you could contact and vote for priority)

  1. General tidy-up and optimizations (on going)
  2. Create and add menus system, and drop down controls
  3. Plugin installs via front end
  4. Plugin API Documentation
  5. Investigate AppImage deployments


Q & A

Q: The application stops with the splash screen saying my version of the OpenGL Shading Language is not high enough, why?

A: IQSynth relies on the response from the drivers when querying the available shading language version. Late in the day I've discovered that it's possible to have multiple OpenGL 'profiles'. Especially for integrated chip sets. I'm not currently detecting and selecting a profile but relying on the default. This is a reasonably high priority bug but is difficult to work on due to lack of testing setups available.

IQSynth Revision Notes

A list of all the notes from all versions is provided below.


Slot speed offset now linked to FX speeds
Can now pause playback if using a Take
Plugin icon added to indicate if a Source & Effect one
Fixed: sometimes couldn't change resolution when exporting clip
Changed the look of toggle buttons in plugins

Mixer plugin can no longer by dropped into the wrong place Removed some deprecated code from the midi stack, this may have been causing crashes
Fixed standard midi parameter input (wasn't using the correct range) Remove deprecated midi Driver CC (D5-D8) Renamed midi Driver CC (D1-D4) to match their mapping M1,M2,A1,A2 Added local speed offset CC options to Midi

Follow through on recent VideoEditor work
Stop crashes and produce warning if actions attempted without selection
Takes MUST now always have at least 1 part (old empty Takes will cause problems until edited|deleted)
Added modified warning if part range changed


Hides transport controls in workbench when editing
Some improvements to take editor
Retriggers now take into account direction
Retrigger markers/indicators added to slot playback position display
POI sub system removed as it has been intergrated into takes (use RTT option to retrigger on take parts if available)
Hid some controls, I'll bring them back when they become valid
Brought back basic local speed control for videos (on request from Marc)