This is a set of PCB designs, FPGA firmware, and software for a digital audio interface. The designs allow for up to 32 channels of audio I/O from four ADC/DAC modules per chassis. The intent is to provide audio quality suitable for hi-fi systems, and to allow experimentation with ADC/DAC module design, digital filtering, and user interfaces.
More detailed documentation is located in the docs directory. This documentation is in Sphinx format and is synchronized to http://da-platform.readthedocs.io. A PDF version is periodically published to docs/da_platform.pdf.
Work is in progress. If you have any questions, please contact the author by creating an issue, or commenting on a relevant issue if one already exists.
The author is using this project as a music streaming server, digital crossover, and measurement device in a DIY audio system. Other uses are possible and are described in more detail in the documentation.
This project is open source and intended for non-commercial use. Intellectual property developed for this project is licensed partly under the Solderpad license (hardware) and partly under the GPL (software). Please see the LICENSE file for more information, and the individual licenses in the docs/licenses directory for the complete terms.
Any other intellectual property included in this repository (whether for users' convenience, or accidentally) is covered by its own original license.