Tag Archives: audio distribution

HiFiBerry – preview


HiFiBerry is an addon-board for the Raspberry Pi. It will be connected to the board by USB. You can add it directly or using an external USB cable. To connect it directly to the USB port, the USB jack and the audio and video jacks have to be removed.

The PCB design for the HiFiBerry version 1 is almost finished. Due to the limited space, there will be no SPDIF in and out connection on the board. There is some space left for a pin header for these ports.

The circuit uses an external power regulator to provide the best possible audio quality. The audio chip is a PCM2906 which is known for its good audio quality.


Home audio – RTP source

courtesy of Gijsbert Peijs

This project was started to transport the sound from my turntable to the loudspeakers without visible cables. Our flat already had ethernet in all necessary places, therefore the idea was to transport audio over ethernet.

I didn’t want to use large and expensive hardware for this experiment. Therefore the Raspberry Pi looked like the ideal hardware. It runs Linux and has integrated sound, network and USB. Unfortunately the sound hardware is unusable, because it does not feature an analog input. Therefore an additional sound card is needed. My choice was the Behringer UControl 202. It used the Texas Instruments PCM2902 chips that is well known, well-supported and good-sounding.

Stay tuned for more informations on this project.