This is REAPER.
REAPER is a complete digital audio production application for computers, offering a full multitrack audio and MIDI recording, editing, processing, mixing and mastering toolset.
REAPER supports a vast range of hardware, digital formats and plugins, and can be comprehensively extended, scripted and modified.
Do Anything

REAPER's full, flexible feature set and renowned stability have found a home wherever digital audio is used: commercial and home studios, broadcast, location recording, education, science and research, sound design, game development, and more.

From mission-critical professional environments to students' laptops, there is a single version of REAPER, fully featured with no artificial limitations. You can evaluate REAPER in full for 60 days. A REAPER license is affordably priced and DRM-free.

Constant Evolution

A new REAPER 6 license includes unlimited free updates through REAPER version 7.99. Frequency varies, but updates are typically released every few weeks.

These updates include bug fixes, feature improvements, and significant new features, all of which are free. Updates only take a minute or so. All preferences and configurations are preserved, and forward and backward compatibility are maintained.

Feature Highlights

  • Efficient, fast to load, and tightly coded. Can be installed and run from a portable or network drive.
  • Powerful audio and MIDI routing with multichannel support throughout.
  • 64-bit internal audio processing. Import, record to, and render to many media formats, at almost any bit depth and sample rate.
  • Thorough MIDI hardware and software support.
  • Support for thousands of third-party plug-in effects and virtual instruments, including VST, VST3, AU, DX, and JS.
  • Hundreds of studio-quality effects for processing audio and MIDI, and built-in tools for creating new effects.
  • Automation, modulation, grouping, VCA, surround, macros, OSC, scripting, control surfaces, custom skins and layouts.
  • A whole lot more.

6.12c
fix issue with legacy customized FX mixer menu items
FX browser
minor reorganization of controls
add context menu items to add FX to selected active takes, selected tracks
add option to hide FX type prefixes in folders and filtered views ...
RS5k
small reorganization of controls
add Portamento setting
allow loop to be enabled when ignoring note-offs ...
Automation items
only copy time-selected area if edit begins within the time selection
prevent potential hang when editing trim via envelope control panel
more...
New in Version 6
FX Plug-in Embedding:Embed small versions of some plug-ins into your tracks control and mixer panels, including ReaEQ, ReaFIR, ReaXcomp, graphical JSFX plug-ins, and more
MIDI CC Envelopes:Handle MIDI CC data as continuous data envelopes, rather than discrete events; create smooth, musical articulations and effects
Auto-stretch Timebase:Automatically stretch and reconform audio around complex tempo changes; easily work with tempo-mapped and live-played recordings together
Routing Diagram:View and edit project routing using a high-level graphical patchbay emulation
Retina/HiDPI:Automatic rendering to HiDPI and Retina displays; new Default 6 theme supports 100%, 150% and 200% natively
Big Project Improvements:Vastly optimized behavior for projects with high (200+) track counts; Metal display support for massively faster screen drawing on newer macOS displays
..and More:New theme with extensive customizability via Tweaker script; Dynamic Split improvements; import and render media with embedded transient information; per-track positive or negative playback offset; faster and higher quality samplerate conversion; and many other fixes and improvements


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