This was not immediately clear to me at first, and a even the pulseaudio FAQ is a little vague on the different methods. There are several methods to pipe audio over a network. etc/pulse/default.pa add “tsched=0” to the udev line so that it reads:Ī bit of education on Pulseaudio that took me a while to figure out. It may work great, it may work poorly.Ħ) Edit the pulseaudio configuration files on the raspberry pi. Note: I haven’t tested version 3.0 extensively. I’ve opted to build it from source (version 5.0), but version 3.0 is already available through apt-get. **** List of PLAYBACK Hardware Devices **** card 0: sndrpiwsp, device 0: WM5102 AiFi wm5102-aif1-0 Subdevices: 1/1 Subdevice #0: subdevice #0ĥ) Next you’ll have to install pulseaudio on the rpi. Go back and check that the proper modules are being loaded and blacklisted. Ĥ) After installing the new kernel and modules, reboot the pi. Note: There is a pull request on the official raspberry pi/linux github, but I’ve had issues with the card not being detected with that version of the kernel. On a 64 bit linux machine you’ll need to “sudo apt-get install lib32z1” or else the compile will fail early. Download the kernel source from Cirru’s github page and follow the directions linked below for cross compiling. Go ahead and reboot the pi after this.ģ) Install git on your local machine. These two commands will ensure you have the most up-to-date distribution before we do any Kernel work. Run “sudo apt-get update” and then “sudo apt-get upgrade”. I do this using ssh, but you can plug in a keyboard and monitor if you aren’t familiar with that method. Write the image to the SD card.Ģ) After booting Raspbian, log in using the user pi and default password.

Note: If you already have a working sound card setup, you can skip to the pulseaudio configuration part, step 5.ġ) Download the latest Raspian image from the raspberry pi website. It’s also great for picking up shortwave broadcasts from around the globe. I am currently using this setup to make contacts via PSK, RTTY, JT-65/JT-9. The steps below are assuming some basic familiarity with the pi and linux in general. This requires a little extra pain in the beginning for the card to be recognized. The Wolfson Pi seemed to be the best choice on the market, except for the fact that the drivers were not completely integrated into the raspberry pi kernel.

I tested the softrock using a Burr Brown PCM2902 based USB interface, but wanted something that would do 96khz sampling rate. The basic RX path is: Antenna –(RF) -> Softrock RXTX –(I/Q audio)-> wolfson/pi -> pulseaudio -> Quisk –(baseband audio)-> pulseaudio -> speakers/fldigi The first step was to use a quality soundcard. My “shack”, located in the top of the laundry closet.

Install pulseaudio raspberry pi