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.rs-online.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 - Boundary-Specific Transform Functions
04:27 - Equal Loudness Target
05:25 - Analysis: Transmission Line Model
05:56 - Exercising the Constraints
07:13 - Analysis: Bass-Reflex, Quasi-Cylindrical Model
08:29 - The "One Note Wonder" Scenario
09:09 - Analysis: Ducted Reflex Model
09:54 - Analysis: Dual-Stage Bass-Reflex 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 Series-Tuned Bandpass Model
13:50 - Analysis: 5th Order Parallel-Tuned Bandpass Model
14:11 - Analysis: 6th Order Parallel-Tuned 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 Double-Stack
17:11 - Final Design
17:27 - "Will It Scale?"
18:09 - Wrong Sub
18:22 - Wrong Car
18:53 - In Closing