pisound is a HAT for the Raspberry Pi 3 which acts as a souped-up sound card. It allows you to send and receive audio signals from its jacks, and send MIDI input/output signals to compatible devices. It features two 6mm in/out jacks, two standard DIN-5 MIDI in/out sockets, potentiometers for volume and gain, and ‘The Button’ (with emphatic capitals) for activating audio manipulation patches. Following an incredibly successful Indiegogo campaign, the pisound team is preparing the board for sale later in the year.
Setting the board up was simple, thanks to the excellent documentation on the pisound site. First, I mounted the board on my Raspberry Pi’s GPIO pins and secured it with the supplied screws. Next, I ran one script in a terminal window on a fresh installation of Raspbian, which downloaded, installed, and set up all the software I needed to get going. All I had to do after that was connect my instruments and get to work creating patches for Pure Data, a popular visual programming interface for manipulating media streams.
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