Help Page – Stellar Version History

Stellar Help Home Page

V0.5.3  –  14th September 2021

Bug Fixes and Updates

Add new Protected Text mode

  • Protect text with new pencil icon to enable editing
  • Improve Text Editability settings and add Text only option

Add new multi track audio support

  • Separate faders per audio track
  • Sync names between tracks and faders

Add Netflix Timed Text Authoring Lineage specification (TTAL) file support.

Simplify Project and layout menus

Add Auto Silence detection mode for AD recording

  • This removes the need to manually set a suitable silence level before recording
  • By default automatic mode is set. To change go to the Audio Recorder settings

Add word count to dubbing info on File Status screen

Improve cursor handling on Insert, Split and Merge of subtitles

Add new version of Task Management option

Add full DRM and second factor authentication support

Add login to Nebula from within Stellar

Add new OCR functionality – requires OCR Process to be running

Add No Video Loaded yellow banner in video window


  • Fix problems with video playback during remote recording
  • Fix AD fade default settings
  • Fix bug with file paths when importing and ASR
  • Fix bug that allowed negative timecodes to be created when dragging on the timeline.
  • Correct handling of audio files on Duplicate

V0.5.2  –  21st June 2021

Bug Fixes and Updates

  • Audio Recording
    • New Record Stop Modes
      • Controls what happens when a recording is stopped short
      • New modes: Abort, Keep, Merge
    • Record end guard added
    • Auto Trim for ESF
      • Option to auto trim audios before storing in ESF files
  • AD Layouts updated to set more sensible defaults
  • Bug in foldback level during recording fixed
  • Bug in VU meter updating fixed

V0.5.1  –  16th June 2021

Bug Fixes and Updates

  • Audio Recording
    • Make Ctrl+ D and F12 work correctly for Start and Stop Recording
    • Add Ctrl+ Shift + D to Start/Stop Recording and keep partial Take
    • Rationalise Insert Subtitle in text box
    • Improve AD recording alignment
    • Update defaults in AD Layouts
    • Change description for Auto Alignment settings
  • Audio Conforming
    • Add Alt+ Double click to conform a Take or a Title
  • Align and Recut
    • Improve information in dialogs
    • Tidy up operation
    • Enable video controls while dialog open
  • Script Text Display
    • Add Line countdown and progress mode
    • Add progress mode to pie chart option

V0.5.0  –  16th May 2021

New Features

  • Audio Description
    • Original AD Widget has been removed – See here for instructions on how to use the new AD layouts.
    • AD Script over or under video
    • AD script in Wipe, Static or Rythmoband modes
    • Record count down timer in graphic or numeric format
    • Multiple audio Takes on the new Timeline
    • Improved audio trimming and aligning on the timeline
    • Simplified synthetic voice controls
    • Enhanced Record modes to record sub sections of a title or multiple titles in one go.
      • With automatic audio splitting and aligning
      • Automatic fade settings
    • Global Fade settings and editing controls.
  • New Timeline
    • A significant new update to the Timeline to support AD and Dubbing and to enhance subtitle editing
    • Tracks on the timeline can be re ordered with Fixed sections at top and bottom and a scrolling section in the middle
    • Record markers
    • Fixed and moving Playhead modes
    • Improved time track with time markers
    • Hover shortcut controls over text and waveform boxes
    • Show or hide some or all audios associated with an AD file or a Dubbing Role
    • Subtitles
      • Text in the subtitle box
      • Subtitle number on the timeline
      • Improved in and out cue editing on the timeline
      • New multi-track alignment tools – more all tracks by the same relative amount when conforming.
    • Audio Description
      • Multiple Takes on the timeline
      • Move, trim, split and merger audios
      • Record markers to record larger or smaller segments
      • Edit Fade settings on the timeline
    • Dubbing
      • Completely new Dubbing support
      • Dubbing files with multiple Roles displayed on the Timeline
      • Full adaptation editing on the timeline for lip-sync dubbing
      • See Titles (Lines) for each Role on a separate track
      • Select one Role for recording
      • Record multiple Takes
      • Move, trim, split, merge, mute and delete audio Takes
      • Mute and unmute individual Roles.
    • Multi track audio
      • Support for up to 8 track audio in media file (4 stereo pairs)
      • Mute and mix the level for each track
  • Video Overlays
    • Major updates to a range of overlays in the Video window
    • Scale the video either to fit the video window or shrink to allow space for other controls – always maintains the correct aspect ratio.
      • Timecode
      • Audio level meters
      • Intercom controls
      • AD and Dubbing Script prompts in Rythmoband, Wipe or Static styles.
      • Improved context controls for all overlays – set your preferences directly in the video window.
      • Major updates to a range of overlays in the Video window
  • Subtitle Align and Recut
    • Simplified alignment of subtitles to correct timecode.
    • Align, Recur and Stretch shortcuts on Timeline and Text editor.
  • Other Updates
    • Improved hover help for all controls
    • Preview play mode – Play only the sections with AD or Dub audio or subtitles and skip over the gaps

V0.4.0.0  – 27th October 2020

New Features

    • New user interface
      • A new look for Stellar with  more consistent colours, controls and general usability improvements.
        • New screens and dialogs
        • Improved right click context menus
        • Time editing improvements for
          • Offset
          • Recut
          • Stretch
    • Zoom to fit control
      • New control to zoom any layout to fit the available screen space
    • Improved Layout editing
      • Automatic zoom
      • Screen size Canvas to show the available space for widgets ate normal 100% zoom
    • Media Controller
      • Add Small step buttons
    • Machine Translation interface
      • The AI Tools machine translation option now has a new interface and more translation services
    • Subtitle encoding outputs
      • New Subtitle Tools Widget
        • Output subtitles as encoded DVB or Powerview Plus (Imitext) subtitles
          • Subtitle only Transport Stream (TS) files.
          • Multiplexed TS files with video, audio and subtitles
    • Software update warning screens
      • Warning screens when a new version of the software is released.
    • General bug fixes and minor updates

See how these changes might impact your current Projects Here.

V0.3.9.0  – 14th August 2020

New Features

  • Import and Export text files
    • Move subtitle, caption and AD script files in and out of Stellar Projects
    • Supports file format conversion
  • Dedicated Volume controls
    • Pop up fixed volume mixer controls
    • Allows quick access of all volumes in one place
    • Input (mic) and output level controls
    • individual mute buttons
    • dB level indicators
    • Rename each control
  • New Machine Translation services
    • Use a wider range of MT services directly in Stellar
      • Convert a whole file from new menu option
        • Tools – AI Tools – Translate File
  • Zoom button and auto zoom
    • Zoom your Stellar Layout to fit your screen
    • Layout mode auto zooms out to allow easier positioning of Widgets
  • Improved Context Menus
    • More direct controls on right click in many widgets
  • Subtitle Tools
    • New Subtitle Tools menu section
    • Add Subtitle Render
      • Output subtitles in a range of delivery formats
        • DVB with or without multiplexing into a video stream file
        • Timed Graphics (MOV)
        • PowerView subtitles with or without multiplexing into a video stream file
  • Shortcuts
    • New shortcuts on Windows Desktop (Not Mac)
      • Shortcuts for Stellar,
      • Device Status
      • Device Start
    • Browser bookmark now supported
      • Bookmark Stellar in Chrome
        • Device must be running for Stellar to start.

V0.3.8.0  – 25th June 2020

Major update to AD functionality

    • Improved AD audio recording features
      • Multiple Takes
      • Playback while recording
      • Audio scrubbing of AD audio
    • Improved audio record quality
      • Improved AD Mixing features
      • Mono wav output supported
      • Better control of input and output files
    • Improved right click Context menus for all widgets
    • Subtitle Go To option
      • Jump to subtitle number or timecode
    • Improved subtitle cueing
      • New Highlight on timeline shows selected text box.
      • Drag video position on timeline for fast subtitle cueing
      • Jump timecode to spot on audio waveform by double clicking
      • Play/Pause using Spacebar (Only when no text cursor present. Press Esc before using Spacebar)
      • More intuitive cueing
      • Override minimum gap rules with Shift key when cueing.
    • Overlay Timecode over video
    • Improved text column sorting,
      • Swap positions now supported
      • Configurable Number of Columns
      • Column order stored as part of the Project
    • Recent Lists
      • Recent Projects and Layouts now shown on Open dialog.
    • Edit Column names in place
    • Hover over column tab info section
      • Number of Subtitles or AD Text blocks shown in file
      • File Name and path
      • Read/Write mode
      • Comments
    • Project file status
      • Show if files within a Project are present on disk.
    • Remember last folder used
    • Trap unsaved changes
    • Higher level of Undo – Alt+ Z
  • Auto Detect and warn if the Nebula Device is missing
    • This prevents work from not being saved correctly
  • More hover tips and help links.
  • General bug fixes

V0.3.7.1  – 16th April 2020

Minor update to add ASR (Speech to Text) functions

  • New AI Tools menu item – if selected in configuration
    • External ASR services supported
    • Extract audio from media
    • Audio to SRT subtitle file
    • Text alignment to audio using audio and script files
  • All external file access for Import Export and Deliver functions can now be configured to support drive roots (C:/)

V0.3.7  – 2nd April 2020

Major update to Subtitling functionality

  • Reading speed indicators and warnings
  • Subtitle style settings
    • Colours
    • Justification
    • Style
    • Vertical Positioning
  • Recent Project and Layout tabs
  • Subtitles over video
  • Comment fields in individual subtitles
  • Improved file browsing in all dialogs
  • Subtitle file support
    • Direct editing (without conversion) of:
      • Pac
      • FPC
      • STL
      • SRT
    • Read only viewing of other formats
  • Subtitle file conversion on Duplicate
  • Style Templates for files, types and layouts
    • Character set support
    • Supported styles
    • Line lengths
    • Other style and layout limits
  • AD Reorder
    • Multiple takes can be recorded per text element
      • Only stored in srtad files
      • Not supported in ESF Formats
    • Adjustable Text Size
    • Audio scrubbing of AD audio – Option,
    • Auto Trim Audio to fit within text timecode limits – Option
  • Importing Media files – direct support within Stellar
  • Import and Export complete Projects
    • With or without media file
  • Stretch or Compress subtitle time 
  • Save Layout short cut on top bar
  • Esc now closes all dialogs
  • Smoother widget movement in Layout mode
  • Media Control Widget (play controls)
    • Audio Scrub mute button
    • Can be resized
  • Link to Tech Wiki Forum in Help menus

V0.3.6- 2 Sept 2019

File access dialogs

  • All areas where files are listed display better in smaller screens and when there are many files.

User Forum

  • Link has been changed to our new Discourse based forum.

Other minor changes

  • .fpc files are now supported for read & time edit.
  • AD Recorder widget now saves wav automatically when a gain is applied to the audio snippet.
  • New Project now fixed.  Note that if a file ‘default.proj’ is written to the project folder, this will be used as the .new. project.

V0.3.6 – 22 July 2019

Top Menus

  • New graphics and physical layout
  • Enhanced Help section
    • User Forum
    • Active Hotkey list

Context pop-up menus

  • Right click pop-up menus on some Widgets
  • More to follow in future releases

Play/Pause on video Widget 

  • Click in video window to play/pause the video

Duplicate Text files

  • Single click to create a  duplicate of a text file to the current Project
  • Useful for creation backup copies or new versions of a file (Subtitles, AD or transcriptions)

New options in Timed Text Widget

  • Select between 19:3 or 16:9 display option. 
  • Useful for visualising vertical positioning. 

Print and Preview

  • Print subtitle and AD files
  • Preview Subtitle files over the video

New User Forum

  • Forum for information and discussions about Stellar
  • You need to have a Google login to use this forum
  • You need to be invited to use the forum – all Nebula users will be added automatically.

New AD Tools

  • Synthetic voice configuration and rendering

  • Automatic Gap detection from subtitle file

  • Convert AD single Wav file back to audio segments and AD file with timecodes

    Useful for editing AD content where the original AD files have been lost

  • Convert AD single Wav file back to audio segments and AD file with timecodes

    • Useful for editing AD content where the original AD files have been lost

  • Collect and Zip all AD files for delivery

Layout Templates

  • System Templates – Protected Layouts that can’t be updated or overwritten by any users.
  • User Templates – Users can protect Layouts as User Templates to prevent accidental overwriting.

V0.3.5 – 14 June 2019

AD Recorder

  • New graphics and physical layout
  • Automatic pan and fade settings now the default option but can be disabled
  • Configurable lead in countdown timer

AD Mixer

  • New graphics and layout
  • Added option to mix AD audio back into original MP4 media file

AD Synth Voice render

  • New Widget
  • Provides access to over 400 synthetic voices in 25 languages from Google, Amazon, Cereproc and Acapela.
  • Speaking rate control options
  • Pitch and volume controls

Text editor

  • Updated version with improved layout and display styles
  • Support for AD text type
  • Variable number of subtitles visible depending on Widget size
  • Support for all timecode styles


  • New consistent look in Projects, Files and Layouts sections
  • Comment fields now available in Projects, Files and Layouts
  • Option to set a Default Layout in a Project
  • Demo File download option added to Project menu
  • Help pages added and updated – Help menu or F1 to access.