CamillaDSP in the Pi5/DAC8x

The DAC+DSP, the Beocreate 4-channel, the DSP add-on card, and HiFiBerryOS are convenient ways to implement digital signal processing on a Raspberry Pi. However, for more complex setups like designing a crossover for 4-way speakers or achieving four balanced audio outputs, these solutions may not be sufficient.

In such cases, if you require more than 4 output channels, HiFiBerry’s DAC8x, which offers 8 output channels, could be a viable option, though it currently lacks a DSP add-on option. We cannot confirm if this will be added in the future as managing 8 channels on a small board is complex.

For those willing to experiment, digital processing can also be done in software. The powerful Raspberry Pi 5 can handle audio processing, with projects like CamillaDSP gaining popularity. Michael D. Simon has created a helpful guide to installing CamillaDSP on a Raspberry Pi.

HiFiBerry Devices

Considerations for Using CamillaDSP

  • This approach requires significant command-line work. It’s not a plug-and-play solution.
  • Unlike hardware DSP, software DSP requires configuring applications to send audio output to the DSP software, not directly to the sound card.
  • Player applications must use a fixed sample rate (e.g., 44.1kHz). You’ll need to check and configure this setting for your player application.

May 23, 2024

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