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Changelist

v3.5

  • Folder-based projects
    • New folder-based project backend: a plain directory on disk, no binary project file (see docs/Folder_Based_Projects.md)
    • New ProjectItemRef type unifying ID-based and path-based source references
    • New strong ProjectID type replacing raw ints
    • New zip-based archive format replacing .trkarch (legacy classes preserved in a legacy:: namespace for reading old archives)
    • New ProjectUtilities consolidation functions for making projects/edits self-contained
    • Smarter relative/absolute source path handling in clips
  • Multichannel
    • Arbitrary channel counts throughout: devices, plugins, racks, clips, recording and rendering
    • New ChannelConfiguration class describing channel layouts
    • Device channel groupings of any size, with savable device I/O layout presets
    • Plugins explicitly declare their bus layouts via Plugin::getBusses()
  • ARA
    • Generalised ARA hosting (no longer Melodyne-specific), enabled with TRACKTION_ENABLE_ARA
    • Overhauled hosting lifecycle, region management and notifications
    • Support for non-clip based ARA plugins, chord track progression and view selection sync
  • Async engine
    • Removed all modal loops from the engine: alert/dialogue APIs are now async with completion callbacks
    • Added Engine::prepareForShutdown for non-blocking plugin teardown
  • Time-stretching
    • Added support for the Signalsmith stretch library
    • Stretchers now report their latency
  • Rendering
    • New RenderSpecification describing a render as data, with JSON round-tripping and per-track/stem expansion
    • New RenderQueue running specifications sequentially, with progress, cancellation, appending whilst running and partial-file cleanup
    • Stem rendering: muted tracks can be rendered, and source tracks keep processing whilst muted so sidechains and aux buses still feed them
    • Loudness normalisation to a LUFS target with a true-peak ceiling, and a wrap-remainder mode folding a render's tail back onto its start
    • Renders no longer spin forever on a clip whose source file is missing: a clip with an unreadable source that isn't being generated is left out of the graph and renders as silence
  • Analysis
    • New real-time-safe LoudnessMeter measuring EBU R128 momentary/short-term/gated-integrated loudness, EBU Tech 3342 loudness range and oversampled true peak
    • New AudioFileAnalyser reporting loudness, spectral and dynamics statistics for an audio file
  • Import/Export
    • DAWproject: scene/launch-clip support, nested path fixes, default volume/pan/meter plugins and correct pan range on import
  • Misc
    • Level meters for audio/MIDI output devices and a test tone generator on WaveOutputDevice
    • AudioFileManager support for registering in-memory audio data as clip sources
    • New TRACKTION_SANITISE_PLUGIN_OUTPUT and TRACKTION_ENABLE_PLUGIN_CPU_MEASUREMENT flags
    • Engine unit tests converted from juce::UnitTest to doctest
    • Control surface clip pads can match the host's clip colours: new UIBehaviour::getClipColourForControlSurface(), getClipColourIndexForControlSurface() and getNumClipColourIndexes(), plus ControlSurface::padColourStateChanged() which passes the clip colour to surfaces. Pads now also refresh when a track's colour changes
    • Tons of bug fixes, optimisations and API improvements

v3.2

  • Automation modes (read/write/touch/latch)
  • AutomationCurve bypass

v3

  • Clip launcher for non-linear composition
    • Launch clips quantised to timeline
    • Launch scenes for triggering multiple clips at once
    • Record to clip slots
    • Comprehensive follow actions
  • MIDI
    • MIDI recording thumbnails
    • Automatic MIDI device detection
    • Real-time MIDI Nodes for dynamic tempo changes
  • Recording/playback
    • Improved recording punch capabilities
    • New return-to-start/resume playback mode
    • Real-time audio time-stretching (with backgroud thread read-ahead for reduced CPU load)
    • New InputDevice MonitorModes for auto/on/off
    • Improved audio file reading (reducing CPU load)
  • Plugins
    • Cmajor support
    • Improved automation resolution
  • Performance/optimisation
    • Optimised playback graph
    • macOS Audio Workgroup support
    • Improved CPU use metrics
    • Tons of bug fixes, optimisations and API improvements
    • JUCE 8 support

v2.2

  • Added a new ContainerClip type which can contain other audio/MIDI clips and play them back looped
  • Lots of small internal performance improvements

v2.1

  • Added support for user supplied thumbnails (and removed the TracktionThubmail class)
  • Added a "quantised jump" so you can delay a transport position change to a time in the future

v2.0

  • Added improved sample rate conversion using libresample
  • Added real-time time-stretching for audio and MIDI clips by setting setUSesProxy (false) on them

v1.1

  • Added an ImpulseResponsePlugin class
  • Added support for RubberBand time stretch algoirthm (licensed separately)
  • Added a DistortionEffectDemo to show how to create a custom plugin class and use it in an app (along with a tutorial for)
  • Changed the underlying playback engine for better multi-thread CPU utilisation and improved PDC handling (using the new tracktion_graph module)

v1.0

  • Initial release