In this video, I demonstrate one of several design workflows that an acoustic engineer may use for product design. All the showcased software is either free or open source:

OpenSCAD: https://openscad.org/
FreeCAD: https://www.freecad.org/
(Calc) Libre Office: https://www.libreoffice.org/
REW: https://www.roomeqwizard.com/
DesignSpark Mechanical: https://www.rsonline.com/
Blender: https://www.blender.org/

Car Audio Subwoofer Enclosure Design: https://adcaraudio.com/store/enclosur...
Home Audio & Advanced Systems Design: https://hexibase.com/contact/

00:00 Preface
00:12 Enclosure Design Request
00:46 Listening Space Profiles
01:40 Input
02:00 Output(s)
02:29 The Driver
02:54 Enclosure Models
03:20 Analysis: Sealed Model
04:01 BoundarySpecific Transform Functions
04:27 Equal Loudness Target
05:25 Analysis: Transmission Line Model
05:56 Exercising the Constraints
07:13 Analysis: BassReflex, QuasiCylindrical Model
08:29 The "One Note Wonder" Scenario
09:09 Analysis: Ducted Reflex Model
09:54 Analysis: DualStage BassReflex Model
10:31 "What's It Tuned To?"
11:32 Practical Fb Scenario
12:38 Analysis: 3rd Order Bandpass Model
13:00 Analysis: 4rd Order Bandpass Model
13:17 Let The Driver's Behavior Decide
13:44 Analysis: 5th Order SeriesTuned Bandpass Model
13:50 Analysis: 5th Order ParallelTuned Bandpass Model
14:11 Analysis: 6th Order ParallelTuned Bandpass Model
14:25 Upper Acoustic Order Threshold
14:46 Air Flow Analysis
15:34 Fabrication Strategies & Effects
16:31 FEM: When to Brace or DoubleStack
17:11 Final Design
17:27 "Will It Scale?"
18:09 Wrong Sub
18:22 Wrong Car
18:53 In Closing