**!!! You must disable audio enhancement before listening !!!**
On windows "disable all enhancements" for all devices, on mac disable "sound enhancer", on mobile make sure you aren't using mono audio, and if you have a control panel for your headphones make sure to disable any and all similar stuff ("enhancements", "auto leveling", etc)! Noise canceling headphones might also mess with the effects! "Simulated surround sound" headphones, etc. -- all these things may affect the "truth" of what you're hearing.

This series presents a variety of fascinating psychoacoustic phenomena and illusions.
We will cover 42 of them, with examples and explanations along the way. See if they work on you!
Donation links: http://lacinato.com/donate |   / lacinato  

Series playlist:    • 42 Audio Illusions & Phenomena -- Psy...  

Index to Part 2:

0:00 intro
0:12 bone conduction
1:06 stapedius muscle / acoustic reflex
3:19 repetition pitch
4:01 phasing/flanging
5:17 Wason effect
8:23 chalkboard scraping
9:27 stereo salesman trick
10:30 McGurk effect
11:36 masking and phonemic restoration

Lacinato ABX testing tool (mac/win/linux): http://lacinato.com/cm/software/other...

"20dB" claim re: stapedius: Borg, Erik, and S. Allen Counter. “The Middle-Ear Muscles.” Scientific American, vol. 261, no. 2, 1989, pp. 74–81., www.jstor.org/stable/24987364

3D model of the inner ear from this great project:
https://www.nature.com/articles/sdata...
https://zenodo.org/record/1473724
https://blog.medel.pro/openear-3d-tem...
Licensed under: http://creativecommons.org/licenses/b...

This video was made in Reaper and Blender, with final editing/compositing done in Davinci Resolve. Some custom software was written to generate various tones and such, and this was done in JSFX in Reaper.