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5.1-channel analog audio processor

This project is a 5.1-channel, analog audio processor based on PT2322 and Arduino Nano. This inexpensive audio processor contains 6-channel individual channel attenuators, a 3-way tone control system for front-end speakers, and a 3D audio simulation system. This video shows the assembling, firmware installation, and testing of the 5.1-channel audio processor board. Additional information on this project, including the schematic, PCB layouts, compiled binary files, and complete source codes, are available at http://jayakody2000lk.blogspot.com/20.... The PCBWay sponsored this project. The 5.1-channel audio processor PCB is available to order from PCBWay: https://www.pcbway.com/project/sharep... Content of the video: 00:00 - 5.1-channel audio processor PCB 00:06 - Soldering the PT2322 IC 00:38 - Soldering SMD resistors 02:48 - Soldering SMD capacitors 03:28 - Soldering the LM78M08 regulator IC 03:58 - Soldering electrolytic capacitors 05:40 - Soldering through-hole-type resistors 06:03 - Soldering tactile switches 06:25 - Installing 2.54mm female headers 06:48 - Soldering connectors 07:20 - Assembled audio processor board 07:26 - Installing the Arduino Nano board 07:31 - Connecting DC power cable 07:41 - Connecting audio input and output cables 08:13 - Connecting the USB cable 08:15 - Connecting 12V DC power source 08:23 - Obtaining the source codes and Compiling the control application 08:57 - Compiling Arduino firmware using PlatformIO IDE 09:26 - Installing compiled firmware to the Arduino Nano board 09:56 - Testing the board with the control application