Originally Posted by Kodiak
“ Are you feeling lucky.......punk?”

https://youtu.be/JPYt10zrclQ

Good quick basic video on absorption.

“ Go ahead, make my day. “
-Squint Eastwood.

I keep a list...

Anthony Grimani (MSR acoustics)
Acoustics 101
https://www.youtube.com/watch?v=raAyF5ksbkk

Acoustics 102
https://www.youtube.com/watch?v=i_DQWB0mAOo
Acoustics for immersive audio
https://www.youtube.com/watch?v=DFbqJkjfABQ

Paul Hales (Hales Audio) (a counterpoint in some ways to Anthony Grimani)
The science of the room
https://www.youtube.com/watch?v=_l1IkpzeuQI

Ethan Winer (Real Traps)
Hearing is Believing
https://www.youtube.com/watch?v=dB8H0HFMylo
All about diffusion
https://www.youtube.com/watch?v=vb30CICG68c

Floyd Toole (Ret. Harman)
Sound Reproduction
https://www.youtube.com/watch?v=zrpUDuUtxPM

Dennis Erskine (Erskine Design)
Home Theater Design and Acoustics
https://www.youtube.com/watch?v=j23aG6pSYok

Laurie Fincham (THX)
Amplifier Technologies
https://www.youtube.com/watch?v=If-UC2PAZYU
https://www.youtube.com/watch?v=AZw-PZFpcxw

Kevin Voeks (Revel)
Loudspeaker Design
https://www.youtube.com/watch?v=g4lA0cO87OE

Dan Wiggins (Starke Sound)
Loudspeaker Design
https://www.youtube.com/watch?v=JhBnS8UxV1k

Mathias Johansson (Dirac Research)
Dirac Room correction and more
https://www.youtube.com/watch?v=2zEKoJAKFbM

And one more for fun.

The nature of things
The science of sound
https://www.cbc.ca/natureofthings/episodes/sonic-magic-the-wonder-and-science-of-sound