by Tom » 22 Feb 2015, 16:13
Hi,
This is my first post on this Forum, so I want to thank RuneAudio authors for their astonishing product and hondagx35 for its RPi2 build and some improvements.
RuneAudio 0.3 beta is working very good and IMO better on RPi2 then older RPi (no performance issues).
I am using RPi B+ and RPi2 B connected to Burson Conductor DAC by USB input. USB module in DAC is based on CM6631A.
Both RPi with RuneAudio 0.3-beta (regular for RPi B+ (with all updates from git) and prepared by hondagx35 for Rpi2 B) had problems playing MP3 (just static sound, no music) and Hi Resolution wav files (a lot of crackles and pops), but no regular problems with 44 kHz, 16 bit FLAC files.
The fixes was
For RPI B+: old kernel (from 0.2 beta as far as I remember) and 3 additional settings in /boot/cmdline_rune.txt:
dwc_otg.fiq_enable=1 dwc_otg.fiq_fsm_enable=1 dwc_otg.fiq_fsm_mask=0x3
For RPi2 B: just 3 additional settings in /boot/cmdline.txt:
dwc_otg.fiq_enable=1 dwc_otg.fiq_fsm_enable=1 dwc_otg.fiq_fsm_mask=0x3
I isolated cpu 3 for mpd (using hondagx35 instructions) at the very beginning so i do not know its impact on system.
I hope it may help someone.
Best regards
Tom