Hi there,
Together with my professor, I've developed a multichannel audio system based on the AD1938 audio codec by Analog Devices and the BeagleBone Green (TI AM335X SoC).
The audio system offers 2 stereo inputs and 4 stereo outputs.
The whole project is based on open source software.
To demonstrate the possibilities of the audio system, I've created a surround delay effect with the open source C++ library
DSPatch by Marcus Tomlinson.
Moreover I've created an automatic test based on GNU octave to evaluate the audio system characteristis, such as latency, THD+N, DNR, crosstalk and frequency-response.
![](https://ci4.googleusercontent.com/proxy/05BEvbf17ocZcosmEwIi6XdotlDjgJy0DXqRc_3nEmEI2y9t7aydHvgPNd_BV6fdr2h-m-RXDMORTLiWcD6Ydood-NH69WFSDkVbFWP_9jEwbASLxMSKtpp8wGk=s0-d-e1-ft#http://www.creative-technologies.de/wp-content/uploads/2016/02/face24.jpg)
The full article is published
here.
Everybody who's interested and has some questions or feedback, feel free to contact me.