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Cockos updates REAPER to v5.50

Cockos has updated REAPER to v5.50.

Automation items:

  • add automation item support, to contain, move, and transform portions of envelopes.
  • items mask the baseline envelope, but overlapping items all affect playback.
  • items may be pooled or unpooled, looped, stretched, skewed, and phase-shifted.
  • items may be named, saved, and loaded.
  • support separate baseline, amplitude, and looping for individual instances of pooled automation items.
  • alt+drag in envelope lane (by default) to draw automation items.
  • add automation item and automation item edge mouse modifier contexts.
  • add actions to insert, duplicate, split glue, delete, etc.


  • add spectral editing support, action to insert new edit regions.


  • support VST3 extended functionality with Softube Console 1.
  • improve macOS bundleExit VST3 compatibility.
  • improve resize behavior of various plug-ins.
  • send 10 channel speaker arrangements as user-defined.
  • use VST3 parameter IDs for tracking envelopes/parameter modulation across sessions.

Web Interface:

  • add fancier.html.


  • add envelope lane mouse modifier context, deprecate preference to respect envelope segment modifiers in envelope lane.
  • remove envelope lane click mouse modifier context, add envelope lane double-click context.
  • add mouse modifier to freehand draw envelope points respecting snap.
  • add actions to reverse envelope points, reduce number of points by half, insert envelope point ignoring snap.
  • fix a few non-working send envelope menu items.
  • add option to prevent mouse edits of single envelope points from moving past other envelope points.
  • preserve envelope curvature during "move envelope segment preserving edge points" edit.
  • preserve envelope curvature when moving points with media items, or within time selection.
  • preserve envelope curvature at time selection edges when initiating envelope segment edit within time selection.
  • improve behavior when freezing/unfreezing with send and pre-fx envelopes.
  • fix initial value when auto-adding FX parameter envelope.


  • improve support for wet/bypass/VST3 parameter IDs on MIDI learn, TCP knobs.
  • do not auto-increase track channel count when loading FX chains that have multichannel FX but were saved from stereo tracks.
  • fix potential bugs relating to bypass/wet envelopes when loading automation and FX parameter counts change.
  • fix issues related to user-preset navigation.
  • add ReaCast, a shoutcast/icecast source plug-in.
  • improve ReaEQ/ReaXcomp analyzer accuracy.
  • fix project save of JSFX preset names that contain spaces.
  • add mix-in and auto-update options to allow some spectral smearing capabilities for JSFX spectral_hold.
  • improve display updates for some JSFX scripts.


  • improve undo efficiency.
  • automatically make capitalization consistent for non-localized undo point description strings.
  • fix behavior when reordering FX with automation.
  • fix behavior with FX TCP parameters and learn.
  • fix parameter modulation settings.
  • fix behavior when modifying stretch markers via swing grid.


  • allow frequencies up to 100MHz when using dummy audio driver.
  • avoid changing device samplerate to default samplerate when loading projects.
  • add option to flash transport status yellow on possible audio device underrun.
  • improve various playback/recording behaviors when using background project tabs.


  • add CoreAudio option to ignore project samplerate.
  • support receiving CoreAudio overload notifications.
  • improve scroll behavior of non-REAPER windows on 10.11+.
  • improve mixer drag and drop behavior.
  • preserve parameter modulation window position when auto-resizing.


  • restore keyboard focus to piano roll after changing CC lane via dropdown.
  • fix action to explode MIDI by pitch (and some related behaviors).
  • fix project MIDI export when project start time is not zero.
  • fix project MIDI export SMPTE time when using ND timecode.

Notation editor:

  • fix PDF export when "bracket tracks by folder" option enabled.
  • preserve notation for non-displayed notes when edits are made with channel filter active.


  • allow very small track pans in fine adjustment mode.
  • display sub-1% pans with increased precision.
  • decrease media item properties pan snap-to-center threshold.


  • improve undo/update behavior for InsertTrackAtIndex (), DeleteTrack ().
  • avoid setting console focus on reaper.ShowConsoleMsg ("").
  • improve display updates for some scripts.


  • increase FLS slots available on x64 for improved plug-in compatibility.
  • support receiving ASIO overload notifications.


  • automatically make capitalization consistent for non-localized action description strings.


  • prevent latency adjustment when playback is stopped.


  • support import/export of more configuration files.


  • sanitize grid values on project load/entry.


  • bundle libmp3lame 3.99.5.


  • support triplets in metronome pattern.

MIDI editor:

  • handle click on track title exactly like a click on the activate icon in the MIDI track list.


  • improve cross-platform compatibility of clipsort.log import.


  • set focus for temporary single-send adjustment windows.


  • fix incorrect separators with grouped tracks.


  • fix rounding behavior with alpha-blended gfx_xformblit/gfx_deltablit.
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