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freeDSP aurora

An open source and open hardware freeDSP board based on ADAU1452 with 8 analog I/O, S/P-DIF I/O, ADAT I/O, USB Audio, WiFi, Bluetooth.

It supports various and convenient physical addons and multiple software plugins, and is controlled by web interface.

Main features

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
- 8 stereo ASRCs with 139dB DNR
XMOS XE216-512-TQ128 for multichannel bidirectional audio streaming
ESP32 for WiFi or Bluetooth control
AKM AK4458 32bit-DAC
AKM AK5558 32bit-ADC
Supporting sample rates between 44.1kHz and 192kHz
8 analog balanced input channels, +6dBu
8 analog balanced output channels, +6dBu
S/P-DIF input and output
ADAT input and output
Wordclock input and output
Support for display, rotary encoder, volume potentiometer, temperature sensor, PWM controlled fan, IR sensor
One freeDSP expansion header
USB Audio Class 2 Bidirectional streaming with 8 channels in and 8 channels out, full-duplex. Works with ASIO driver under Windows 10 and driverless under macOS and Linux.
Realtime control software over WiFi or Bluetooth available under an open source license
THD DAC: -103dB @ 1kHz, 0dBfs, fs=48kHz
THD ADC: -101dB @ 1kHz, 0dBfs, fs=48kHz
Latency: 1.125ms (talkthrough ADC->DSP->DAC)
Board dimensions: 110mm x 110mm

MAIN COORDINATOR: dspverden

Please take care on which branch you're currently working!

Branches:

master - this branch always holds the latest released revision
develop - this is the develop branch with new features. Please base your patches on this branch.