APM2 is a kernel board based on ADAU1701 DSP, which support 2-in, 4-out. Many customers have asked us how to achieve 4-in, 8-out by using 2pcs APM2.
In this video, we will show you how to build this audio system from the following aspects.
1. How to complete wire connection to achieve I2S signal mutual transmission in hardware between 2pcs APM2;
2. How to input audio signal to APM2 and how to output signal to amplifier boards without interface board, how to power 4pcs audio amplifier boards with one power adapter;
3. How to write the program to achieve I2S signal mutual transmission in software and how to control the built 4-in, 8-out system with SigmaStudio;
4. Demonstration on actual effects.
Wish you enjoy this video!
Here is the demo program for your reference:
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