Foodspxover is a software digital crossover implementation that I have been working on for a while in my spare time as a hobby. It is a foobar2000 audio player plugin that implements this digital crossover to achieve active multi-amplification. For my next home project, I want to put most of my energy into the DSP part. I know that there are numerous projects out there that do what I need, but I want to write it myself in Juce. I want to build a 2 IN - 6 or 8 output speaker crossover, possibly with some mixing or other features. The figure above shows a typical active DSP crossover for a 2-way speaker. Here we have a conventional 2-channel preamp feeding into a DSP crossover. The crossover splits the left and right channel audio signals into separate “hi” and “lo” frequency signals for both the left and the right channels resulting in 4 analog signals each of which needs its own amplification.

Dsp Crossover

Dsp Crossover Board

• We are happy that the freeDSP-aurora with 8 inputs and 8 outputs, USB Audio Class 2 and wireless control via Wifi and Bluetooth was successful on KICKSTARTER.

• The freeDSP is an open-source digital signal processor family for the do-it-yourself community. The applications range from active loudspeaker concepts (digital crossovers, bass enhancement, ...) and room equalization over advanced musical effect processors to car audio signal processing.

• No advanced coding skills are necessary. The freeDSP works with a graphical development environment. The programming model is function-block based. Just drag-and-drop some processing blocks and virtual cables - and you are ready to go! The Windows based software can be downloaded from Analog Devices free of charge.

• All freeDSP boards are published under a creative commons license (CC-BY-SA). It allows the unrestricted use and modification of the module. We would be happy if you join the team and improve or extend the freeDSP family. We really like the open hardware idea. :-)