Cluttering 8: The easiest way to get delayed auditory feedback (DAF)
Channel: Joseph Dewey
Date: 2019-12-10

Most of this video is info for speech language pathologists, and how my initial experience with delayed auditory feedback was terrible, and how to make it good.

I also realized that pretty much any sound mixing board has delayed auditory feedback, and most of the mid to high range lets you control how many milliseconds. I'm using a cheap one where the delay is set around 20-50 milliseconds.

Links:
K3000 on Alibaba https://www.aliexpress.com/item/32890763315.html
K3000 on Amazon https://www.amazon.com/Semoic-Professional-Interface-Microphone-Broadcast/dp/B081SSR8JF