![]() ![]() Well, for freeDSP-aurora a new idea came up: A kickstarter campaign has been launched. You can find everything on freeDSP | An Open-Source Low-Budget Audio DSP and in the git repository GitHub - freeDSP/freeDSP-aurora: freeDSP ADAU1452 with 8 analog input, 8 analog outputs, S/P-DIF I/O, ADAT I/O, USB Audio Class2, WiFi, Bluetooth ![]() You can even download everything and build as many freeDSPs as you want. Thus, everybody is invited to modify or contribute to this project. Like any other freeDSP the project is licensed under an open source license. FIR-Filters are already on the ToDo list. Frequency depending phase shift (allpass).Low pass up to fourth order (Bessel, Butterworth, Linkwitz-Riley).High pass up to fourth order (Bessel, Butterworth, Linkwitz-Riley).Therefore, I have made a first DSP firmware with the following features per channel. The features of the DSP depend on the DSP firmware. Thanks to the ESP32 framework Wifi instead of Bluetooth is an option. To make using as easy as possible I wrote my own app that controls the DSP via Bluetooth. Works with ASIO driver under Windows 10 and driverless under macOS and Linux. USB Audio Class 2 Bidirectional streaming with 8 channels in and 8 channels out, full-duplex.Support for display, rotary encoder, volume potentiometer, temperature sensor, PWM controlled fan, IR sensor.8 analog balanced output channels, +6dBu.8 analog balanced input channels, +6dBu.Supporting sample rates between 44.1kHz and 192kHz.XMOS XE216-512-TQ128 for multichannel bidirectional audio streaming.Analog Devices ADAU1452, 294.912 MHz, 32-bit SigmaDSP, 6144 SIMD instructions per sample 48kHz fs, 40kWords of data RAM, 800ms digital audio delay pool 48kHz fs, eight stereo ASRCs with 139dB DNR.After two years of development freeDSP-aurora is the distillation of the best ideas. Once the prototype of this amplifier was presented on the German forum a fruitful discussion about additional features and ideas started. It all started with the development of a DSP powered subwoofer amplifier. ![]() It was already introduced in the freeDSP main thread, but there the idea came up to open a new thread only for freeDSP-aurora.įreeDSP-aurora is a one board DSP solution. I would like to introduce my newest design of the freeDSP family: freeDSP-aurora. ![]()
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