The HiFiBerry DSP add-on board extends some HiFiBerry HATs for Raspberry Pi with a Digital Signal Processor for audio processing. The DSP can be programmed via Analogs Sigma Studio or be used with pre-defined DSP programs.

The DSP add-on board adds digital signal processing capabilities to the following HiFiBerry sound cards:

• DAC2 HD
• DAC2 Pro
• DAC2 ADC Pro
• Digi2 Pro
• Amp4
• Amp4 Pro

It is directly supported in HiFiBerryOS, with other distributions, you will need to install the DSP toolkit to program the DSP.

Please note:

• This board cannot be used standalone – one of the above HATs arerequired.
• The board will only fit the V2 Steel case when used in conjunction with the DSP mounting kit.
• Fits just fine in the newer universal case for Pi 5 and universal case for Pi 4

Features

• 300 MHz Digital Signal Processor (6144 instructions per sample incl. FFT and FIR accelerators)
• High-quality asynchronous sample rate converter that can upsample/downsample/mix audio sources
• Users can upload programs developed with Analogs SigmaStudio
• Connects to the DSP header of selected HiFiBerry sound cards
• No soldering comes as a pre-fabricated kit.
• Directly powered from the Raspberry Pi, no additional power supply

Resources

• Datasheet
• HiFiBerryOS Filter Designer
• DSP Toolkit