As some may remember I planned to do some sound stuff with the Parallella board, so I'd like to begin with making sure I have the option of running sound from Linux.
From the nice ray tracing example I take it that the HDMI sound isn't working ? There are no other sound devices on the board, so I prefer to be able to start "Jack" (jackd) in networked mode. I can add a simple or very high grade DA convertor to the board via usb, but then a hub would be required for the USB, which also isn't very reliable (BIG PROBLEM).
At any rate, for some basic audio processing to be facilitated, I'd prefer some form of Alsa to work on the board, and that jack can start up, at least in "dummy" mode, so I can start processing racks ("jack-rack") and when that runs, replace parts of the processing by working away from the ARM processors to the FPGA and possibly Epiphany.
When I apt-install jack, it crashes. I've had some sort of issue like this on the Raspberry PI, which I have solved (I didn't record much log, but I should be able to find back some of the work I did), but I wondered if for the Parallella someone has already made alsa_ jack work (jack appears to be lacking "cpu speed" in the device description, and alsa simply doesn't recognize a standard USB DA convertor, which does get recognized by the system, shows up correctly with "lsusb").
Anyhow, I might proceed on my own, in that case I'll report back, bu I hope some people already made this work!
T.
Ubuntu audio tools
by theover » Wed Jun 18, 2014 8:38 pm
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