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6ch sound processor

dilshan·6ch-sound-processor·kicad-design/6ch-sound-fx-proc/6ch-sound-fx-proc.kicad_pcb

6ch sound processor PCB layout, top view — open source AVR/Arduino board by dilshan
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About the 6ch sound processor PCB

6ch sound processor is an open source AVR/Arduino PCB design by dilshan, published on GitHub under the MIT license. It is a 2-layer board measuring 59 × 60 mm, with 69 components from 18 distinct parts.

Its main chip is the Arduino Nano (V3), from the AVR/Arduino family. Other key parts include the PT2322 and LM78M08. By type, the board carries 27 capacitors, 21 resistors, 13 connectors, 3 switches, 2 ICs and 2 transistors.

It belongs with the audio designs in this gallery.

From the project

A 5.1-channel, analog audio processor based on PT2322 and Arduino Nano

This project is a 5.1-channel, analog audio processor based on PT2322 and Arduino Nano.

PT2322 is an inexpensive analog audio processor introduced by Princeton Technology Corporation. It contains 6-channel individual channel attenuators, a 3-way tone control system for front-end speakers, and a 3D audio simulation system.

In this design, we combine PT2322 with Arduino Nano and interface it with PC/embedded computing boards through a USB port. Native GTK UI application provides to control all functions of the PT2322 IC.

6ch sound processor, from the project README
From the project README

Main components on the 6ch sound processor

PT2322LM78M08Arduino Nano (V3)

6ch sound processor bill of materials (BOM)

69 components, 18 distinct parts.

QtyPartRefs
1
PT2322
U1
1
LM78M08
U2
1
Arduino Nano (V3)
A1
2
2N7002
Q1, Q2
12
2.54mm 2-pin
J1, J2, J3, J4, J5, J6, J7, J8 +4
1
2.54mm 2-pin
J13
3
6mm Tactile
SW1, SW2, SW3
14
10MFD
C1, C2, C3, C4, C5, C6, C8, C18 +6
2
0.0022MFD
C7, C9
4
0.01MFD
C10, C11, C12, C13
5
0.1MFD
C14, C15, C16, C17, C26
1
100MFD
C24
1
22MFD
C25
12
100K
R1, R2, R3, R4, R5, R6, R11, R12 +4
2
3.3K
R7, R8
2
6.2K
R9, R10
4
10K
R17, R18, R19, R20
1
0R
R21

6ch sound processor design files

The KiCad project lives in the dilshan/6ch-sound-processor repository on GitHub; these links point at the commit this page was built from.

6ch sound processor: common questions

What microcontroller does the 6ch sound processor use?

The 6ch sound processor is built around the Arduino Nano (V3), from the AVR/Arduino family.

How big is the 6ch sound processor PCB?

The 6ch sound processor measures 59 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 6ch sound processor?

69 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the 6ch sound processor design files?

From the dilshan/6ch-sound-processor repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 6ch sound processor design in my own project?

Yes, under the terms of its MIT license, which dilshan chose for the repository.

Can I test firmware for the 6ch sound processor without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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