Echo and Reverberation Effect Project (PT2399 based)

There are a lot of different blogs and videos about making an echo or reverberation effect circuit or device. Like most of them, I too used a PT2399 chip for this circuit but I'm explaining here the basics of echo effect and how to use this chip to immitate this effect. In this video you will come to know how I failed to make this circuit at first attempt and what changes I made to make it work. This is just a small documentary to portrait this whole project. I've given my best to demonstrate and explain about everything related to echo/reverb. effect and how to implement it artificically in audio and musical circuits. If you have any doubts or still have problem regarding certain topics in the video, please lemme know.
Enjoy :)

PT2399 echo processor datasheet:
http://www.princeton.com.tw/Portals/0...

PT2399 based echo module project video by Usman Ahmad:
   • How to Make a LIVE ECHO SOUND Circuit  

His(Usman Ahmad) channel link:
   / @easyhomemadeprojects