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Reaper: Parallel rendering and multi-mono export

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Demo summary

The user demonstrates the new parallel post-processing options and the ability to render multi-channel files into separate mono files directly from the render dialogue.

Step-by-step

  1. Open the Render dialogue
  2. Select the tracks or regions to be rendered
  3. Enable 'Parallel render' to process multiple tracks simultaneously using multiple threads
  4. Select the post-processing option to render stereo or multi-channel files to per-channel mono files if separate files are required
  5. Enable 'Delay render start' if using parallel render with resource-heavy plugins to allow for effect initialization

Options

  • Render separate mono files from stereo, multi-channel, or multi-channel only sources
  • Toggle parallel post-processing on or off
  • Disable second pass render when normalizing video renders
  • Browse for a directory to initialize the default render path

Watch out for

  • Parallel render via master requires duplicating project effects invisibly, which can fail if the project is resource-constrained
  • Some plugins may render silence during parallel processing if they require long load times
  • Parallel rendering via master may actually take longer if plugins have significant loading delays

Tips

  • Enable 'Delay render start' to give effects time to load samples properly
  • Verify all files render as expected when using the 'Parallel render via master' option
  • Use parallel rendering primarily when rendering at the track level rather than through complex master track effects
  • Expect the most noticeable speed increases when rendering hundreds or thousands of files

Highlights

“it can now be done completely automated while rendering... so there's no post-processing manually that you would have to do.”

All demos from “What's New in REAPER 7.49-56 Updates - hi res spectrogram, tcp infoblock, faster renders and more”

  1. 18:161:02AB comparison of fixed lanesThe user demonstrates a new action to toggle playback between the two most recently used lanes for quick AB comparison.ReaperAI Audio Editor
  2. 19:581:10Half-speed metronome and click sourceThe narrator demonstrates setting the metronome and click source items to 0.5 speed for halftime clicks.ReaperAI Audio Editor
  3. 21:313:18Crossfade Editor enhancementsA walkthrough of new Crossfade Editor features including in-bounds/out-of-bounds previewing, independent pre/post-roll dragging, and ruler scrubbing.ReaperAI Audio Editor
  4. 25:511:47Preserve FX pin mappings when loading presetsThe user demonstrates the new preference to keep existing pin connector mappings even when switching between different plugin presets.ReaperAI Audio Editor
  5. 27:401:20Alias Wet/Dry and Bypass parametersThe narrator demonstrates renaming the native Wet/Dry and Bypass controls for a plugin so they appear with custom names in track controls and envelopes.ReaperAI Audio Editor
  6. 30:143:40Recursive directory import and folder creationThe user demonstrates importing an entire directory of files, showing how REAPER can recursively scan subfolders and automatically create folder tracks.ReaperAI Audio Editor
  7. 33:542:58Media Explorer preview fade settingsThe narrator demonstrates configuring and toggling fade-in/fade-out settings for audio previews within the Media Explorer.ReaperAI Audio Editor
  8. 36:524:51High-resolution spectrogram and spectral editingA detailed demo of the new high-res spectrogram view and various spectral editing improvements, including gain adjustments and multi-selecting edits.ReaperAI Audio Editor
  9. 41:431:02Spectral edit default preferencesThe user demonstrates the new preferences page for setting default fades, gain, and FFT size for all new spectral edits.ReaperAI Audio Editor
  10. 50:144:12Parallel rendering and multi-mono exportCurrentThe user demonstrates the new parallel post-processing options and the ability to render multi-channel files into separate mono files directly from the render dialogue.ReaperAI Audio Editor
  11. Watch “What's New in REAPER 7.49-56 Updates - hi res spectrogram, tcp infoblock, faster renders and more” →

AI Audio Editor

  1. 2:260:16Toggle effects and sends in the TCPThe narrator demonstrates how to right-click an empty field in the Track Control Panel (TCP) to enable 'Show effects inserts' and 'Show Sends' within the Reapertips theme.Reapertips | Alejandro
  2. 2:460:24Convert track to mono in REAPERThe narrator demonstrates right-clicking an item and navigating the settings menu to change the channel mode to mono for a bass track.REAPER Mania
  3. 7:401:20Process vocals with EQ, delay, and reverbThe user demonstrates vocal processing in REAPER by applying EQ boosts, creating a stereo slapback delay, and adding a reverb effect.REAPER Mania
  4. 12:510:39MIDI Note Editing and QuantizationThe user demonstrates opening the MIDI editor, deleting specific notes, and quantizing note positions and ends to whole notes.REAPER Mania
  5. 14:441:39Adding Delay and Reverb EffectsThe instructor demonstrates adding the 'Delay with Tempo Ping-Pong' and 'ReaVerbate' plugins to a piano track to create a washed-out sound.REAPER Mania
  6. 18:562:08Advanced Signal Chain: EQ, Saturation, and PanningThe instructor builds a complex effect chain using ReaEQ for filtering, a saturation plugin for distortion, and a ping-pong pan plugin.REAPER Mania
  7. 21:511:06Arranging a Song in the REAPER TimelineThe demonstration shows duplicating MIDI items across the timeline and deleting specific sections to create a song structure with an intro and build-up.REAPER Mania
  8. 7:411:46Advanced crossfade editing and phase alignmentA demo of the new REAPER 7 crossfade editor, showing how to adjust fade shapes, move crossfades with modifiers, and use the phase align button to match waveforms.Reapertips | Alejandro
  9. 9:450:57Apply low pass fades to media itemsThe user demonstrates right-clicking a fade to select 'low pass fade', which applies a frequency filter sweep alongside the volume change, and shows how to cycle shapes using Control/Command.Reapertips | Alejandro
  10. 10:421:34Using the enhanced Render dialog in REAPERThe creator demonstrates the new render features, including playing back rendered files directly from the dialog, viewing loudness indicators, and using 'dry run' to find clipping points with markers.Reapertips | Alejandro
  11. 6:270:54Managing effects and plugin chains in ReaperA walkthrough of adding stock plugins like a compressor and EQ to a track in Reaper, including how to bypass individual plugins or the entire effect chain using the UI overlays.Andrew Barr
  12. 18:161:02AB comparison of fixed lanesThe user demonstrates a new action to toggle playback between the two most recently used lanes for quick AB comparison.The REAPER Blog
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