$ vim /usr/share/alsa/alsa.conf

#
# defaults
#

# show all name hints also for definitions without hint {} section
defaults.namehint.showall off
# show just basic name hints
defaults.namehint.basic on
# show extended name hints
defaults.namehint.extended off
#
defaults.ctl.card 1
defaults.pcm.card 1

R: http://blog.csdn.net/lophyxp/article/details/14228735

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