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The new Raspberry PI 3B+ audio-related review

Posted: Sun Jun 24, 2018 10:45 am
by CrocoDuck
Hi guys, I found this while reading about the PI on the web. I though It could be interesting for some of us, so:

https://volumio.org/raspberry-pi-3-b-plus-audio-review/

Re: The new Raspberry PI 3B+ audio-related review

Posted: Wed Jun 27, 2018 8:00 pm
by English Guy
Very interested, just a shame they have not upgraded the on board sound, even to 16 bit.

Re: The new Raspberry PI 3B+ audio-related review

Posted: Wed Jun 27, 2018 8:57 pm
by CrocoDuck
Well... I got my Pi too. I guess I will start play with it. Maybe at some point in the future I could give one of these a spin: https://raspi.tv/2016/dac-review

Re: The new Raspberry PI 3B+ audio-related review

Posted: Wed Jul 25, 2018 10:18 am
by Shadow_7
I have a 3B+. I use it as a pulseaudio server to a usb interface. Currently the steinberg (yamaha) ur22mkII. It's a pulse over jackd setup. Unfortunately it's still not fast enough to do the calf 30 band eq plugin. It'll kind of do the 20 band one, but it gets unstable-ish in less than a day. I just leave it with pulse over jack with jack_mixer in the middle, since the ur22mkII doesn't have any software mixer levels.

Re: The new Raspberry PI 3B+ audio-related review

Posted: Fri Jul 27, 2018 1:46 pm
by CrocoDuck
Shadow_7 wrote:Unfortunately it's still not fast enough to do the calf 30 band eq plugin. It'll kind of do the 20 band one, but it gets unstable-ish in less than a day.


It would be interesting to try to create Faust plugins and see how they work. I think Faust is able to compile plugins and standalones on the Pi. Could be also cool to have the Faust compiler try to figure out the compilation parameters for maximal performance.

Re: The new Raspberry PI 3B+ audio-related review

Posted: Mon Jul 30, 2018 5:52 am
by sadko4u
CrocoDuck wrote:
Shadow_7 wrote:Unfortunately it's still not fast enough to do the calf 30 band eq plugin. It'll kind of do the 20 band one, but it gets unstable-ish in less than a day.


It would be interesting to try to create Faust plugins and see how they work. I think Faust is able to compile plugins and standalones on the Pi. Could be also cool to have the Faust compiler try to figure out the compilation parameters for maximal performance.

There are interesting technologies supported on board: NEON instruction set, EDSP instruction set, VFPv4 instruction set. These can give a high performance boost but require some assembly coding.

Re: The new Raspberry PI 3B+ audio-related review

Posted: Sat Aug 18, 2018 8:45 pm
by Shadow_7
It seems that the june update makes jackdbus less stable. It's hanging pretty consistently on an hourly basis. It was pretty stable back in april, but I applied updates in july. Doing a fresh install didn't fix that quirk. It's really quite annoying, especially since I've put the audio portion on it's own subnet with a router/switch to maximize potential. Plus making it more meaningful to monitor the internet side of things less the consistent audio traffic. It hangs faster when doing multiple audio sources or lots of short clips like music videos. With boring podcasts, it lasts about an hour to the minute before I need to restart the audio system. Probably time to try arch or another option on the 3B+, but it has "special" things to be bootable, relative to the other pi's.