i bought usb audio adapter, https://www.adafruit.com/products/1475. following adafruit tutorial - https://learn.adafruit.com/usb-audio-ca ... spberry-pi - able work in couple of minutes. when try play 2 sounds @ same time, following error:
aplay: main:722: audio open error: device or resource busy
if googled error on internet , found lot of links, couldn't find solution. apparently need setup dmix device in alsa config. couldn't make sense of it. , other links told me dmix should enabled default.
installed on latest rasbian jessie release , hoping can problem. use mopidy. plays it's sound through usb sound adapter. can't play other sound when mopidy playing stream.
obliged.
aplay: main:722: audio open error: device or resource busy
if googled error on internet , found lot of links, couldn't find solution. apparently need setup dmix device in alsa config. couldn't make sense of it. , other links told me dmix should enabled default.
installed on latest rasbian jessie release , hoping can problem. use mopidy. plays it's sound through usb sound adapter. can't play other sound when mopidy playing stream.
obliged.
not sure if helps. but
here's /etc/asound.conf result of lusb , aplay -l , aplay -l
here's /etc/asound.conf
code: select all
pcm.!default { type hw card 1 } ctl.!default { type hw card 1 }code: select all
bus 001 device 007: id 0781:5567 sandisk corp. cruzer blade bus 001 device 005: id 0d8c:000c c-media electronics, inc. audio adapter bus 001 device 009: id 1a86:7523 qinheng electronics hl-340 usb-serial adapter bus 001 device 008: id 05e3:0608 genesys logic, inc. usb-2.0 4-port hub bus 001 device 006: id 05e3:0608 genesys logic, inc. usb-2.0 4-port hub bus 001 device 004: id 05e3:0608 genesys logic, inc. usb-2.0 4-port hub bus 001 device 003: id 0424:ec00 standard microsystems corp. smsc9512/9514 fast ethernet adapter bus 001 device 002: id 0424:9514 standard microsystems corp. bus 001 device 001: id 1d6b:0002 linux foundation 2.0 root hub code: select all
**** list of playback hardware devices **** card 0: alsa [bcm2835 alsa], device 0: bcm2835 alsa [bcm2835 alsa] subdevices: 7/8 subdevice #0: subdevice #0 subdevice #1: subdevice #1 subdevice #2: subdevice #2 subdevice #3: subdevice #3 subdevice #4: subdevice #4 subdevice #5: subdevice #5 subdevice #6: subdevice #6 subdevice #7: subdevice #7 card 0: alsa [bcm2835 alsa], device 1: bcm2835 alsa [bcm2835 iec958/hdmi] subdevices: 1/1 subdevice #0: subdevice #0 card 1: set [c-media usb headphone set], device 0: usb audio [usb audio] subdevices: 0/1 subdevice #0: subdevice #0code: select all
null discard samples (playback) or generate 0 samples (capture) pulse pulseaudio sound server sysdefault:card=alsa bcm2835 alsa, bcm2835 alsa default audio device dmix:card=alsa,dev=0 bcm2835 alsa, bcm2835 alsa direct sample mixing device dmix:card=alsa,dev=1 bcm2835 alsa, bcm2835 iec958/hdmi direct sample mixing device dsnoop:card=alsa,dev=0 bcm2835 alsa, bcm2835 alsa direct sample snooping device dsnoop:card=alsa,dev=1 bcm2835 alsa, bcm2835 iec958/hdmi direct sample snooping device hw:card=alsa,dev=0 bcm2835 alsa, bcm2835 alsa direct hardware device without conversions hw:card=alsa,dev=1 bcm2835 alsa, bcm2835 iec958/hdmi direct hardware device without conversions plughw:card=alsa,dev=0 bcm2835 alsa, bcm2835 alsa hardware device software conversions plughw:card=alsa,dev=1 bcm2835 alsa, bcm2835 iec958/hdmi hardware device software conversions sysdefault:card=set c-media usb headphone set, usb audio default audio device front:card=set,dev=0 c-media usb headphone set, usb audio front speakers surround21:card=set,dev=0 c-media usb headphone set, usb audio 2.1 surround output front , subwoofer speakers surround40:card=set,dev=0 c-media usb headphone set, usb audio 4.0 surround output front , rear speakers surround41:card=set,dev=0 c-media usb headphone set, usb audio 4.1 surround output front, rear , subwoofer speakers surround50:card=set,dev=0 c-media usb headphone set, usb audio 5.0 surround output front, center , rear speakers surround51:card=set,dev=0 c-media usb headphone set, usb audio 5.1 surround output front, center, rear , subwoofer speakers surround71:card=set,dev=0 c-media usb headphone set, usb audio 7.1 surround output front, center, side, rear , woofer speakers iec958:card=set,dev=0 c-media usb headphone set, usb audio iec958 (s/pdif) digital audio output dmix:card=set,dev=0 c-media usb headphone set, usb audio direct sample mixing device dsnoop:card=set,dev=0 c-media usb headphone set, usb audio direct sample snooping device hw:card=set,dev=0 c-media usb headphone set, usb audio direct hardware device without conversions plughw:card=set,dev=0 c-media usb headphone set, usb audio hardware device software conversions
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