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freeDSP ADAU1452 with 8 analog input, 8 analog outputs, S/P-DIF I/O, ADAT I/O, USB Audio Class2, WiFi, Bluetooth
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ADDONS Updated BOM for AddOnA Nov 8, 2019
CASES/AURORA_ltd Drawing of Rear Panel May 29, 2019
DOCUMENTATION Updated Manual and made new installers Nov 10, 2019
GERBER Updated Gerbers Nov 6, 2019
PARTSLIST Updated documentation May 5, 2019
SOURCES Updated Manual and made new installers Nov 10, 2019
.DS_Store Updated Manual and made new installers Nov 10, 2019
.gitignore Updated license files May 17, 2019 Updated license files May 17, 2019


freeDSP with

  • 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 for Windows, macOS, Linux, iOS connecting by WiFi or Bluetooth available under an open source license
  • Board dimensions: 110mm x 110mm




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


master - this branch always holds the latest released revision

develop - this is the develop branch with new features


Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

dspControl is licensed under GNU General Public License. Please see in folder SOURCE/dspControl

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