JSFX Scripting tutorial for beginners Pt. 4 (With Leandro Facchinetti) @IDDQDSound
JSFX Scripting tutorial for beginners Pt. 4 (With Leandro Facchinetti)  @IDDQDSound
Uploaded July 2021 | Updated September 2026, 11 hours ago
Hey folks! Join me and legendary coder Leandro Facchinetti on this livestream, where we will write a custom script for REAPER from scratch, and Leandro will walk us through the process step by step! You can ask your questions and request scripts and more.

Links to previous livestreams:
JSFX Scripting livestreams
part 1: youtu.be/HexzW0EZal8
part 2: youtu.be/WR8PtyfLAVc
part 3: youtu.be/VWnJa0-N5lc
part 4: youtu.be/0nnvQJv_gx8
Lua scripting livestreams
part 1: youtu.be/YfTVXn730DQ
part 2: youtu.be/63RKdZfeN7c
part 3: youtu.be/Wp11Varkd6A

Subscribe to Leandro Facchinetti for more Scripting Livestreams: youtube.com/channel/UC_R-6HcHW5V9_FlZe30tnGA

Donations: (Leandro) patreon.com/leafac
(Arya) buymeacoffee.com/iddqdsound

Useful Hotkeys:
Mac Finder:
Cmd+Opt+. - Toggle Show hidden folders & files in Finder
Visual Studio Code:
Cmd+Opt+Down - Duplicate line under cursor
Opt+Z - Wrap text
Cmd+/ - "comment out" selected lines of code (disable code)
Github:
Y to update URL to Unique Time ID
Refresh to generate new raw code URL

Terminology:
IIR = Infinite Impulse Response
FIR= Finite Impulse Response (as in ReaFIR)
FFT: Fast Fourier Transform

Links (to stuff mentioned in video):
Leandro's Repository: ttps://github.com/leafac/reaper
IDDQD repository: github.com/iddqdsound/reaper/raw/main/index.xml
IDDQD Sound: youtube.com/user/aryafsharm
ReaTeam ReaScripts Templates: github.com/ReaTeam/ReaScripts-Templates
X-Raym: extremraym.com
X-Raym API (Looks better but may not be as complete): extremraym.com/cloud/reascript-doc
Mespotine REAPER API Web doc: https://mespotin.uber.space/Ultraschall/Reaper_API_Web_Documentation.html
Lokasenna GUI tutorial: forum.cockos.com/showthread.php?t=176662
Hammerspoon App: hammerspoon.org
Lua Reference manual: lua.org/manual/5.4/manual.html
GitHub Desktop Download: desktop.github.com
Visual Studio Code: code.visualstudio.com
EQ Cookbook: github.com/libaudioverse/libaudioverse/blob/master/audio%20eq%20cookbook.txt
SPEAR: klingbeil.com/spear
Polyrhythms to PolyPitch and other cool stuff by Adam Neely:
youtube.com/watch?v=JiNKlhspdKg
JSFX Scripting tutorial for beginners Pt. 4 (With Leandro Facchinetti)Media Item Properties & Hotkeys for batch editing items (Rapid-fire Reaper Tutorials Ep76)Sound Design Tricks with Valhalla FreqEcho20+ Hotkeys, Mouse Modifiers & tips for Fades and Crossfades (Rapid fire REAPER Tutorials Ep82)Hotkeys & Hacks to A/B Plugins and tracks (Rapid-Fire REAPER Tutorials Ep85)Open Jam Session on NINJAM (with Lets Talk About Reaper & Hi YouTube Im Dad + YOU!)Editing my new album!Dock Images and easily add track Icons with SWS Resources (Rapid Fire Reaper Tutorials Ep51)Multi Out MIDI Drums/VSTi Setup in REAPER (Rapid Fire REAPER tutorials Ep96)JSFX Scripting tutorial for beginners Pt. 5 (With Leandro Facchinetti)Rrreeeaaa Crash Course: Extreme Time-Stretching & more with REAPERWhen to set Item timebase to Beats? for Loops! (Rapid-fire Reaper Tutorials Ep33)
IDDQD Sound |

JSFX Scripting tutorial for beginners Pt. 4 (With Leandro Facchinetti)

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