henrix

Linux-Based Low-Latency Multichannel Audio System

Discussion created by henrix on Feb 11, 2016

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.

ad1938-audio-card_3D_view.png

The full article is published here.

Everybody who's interested and has some questions or feedback, feel free to contact me.

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