ALSA中amixer、aplay、arecord用法

# amixer 
# amixer controls
# amixer controls|grep -i volum

//获取耳机的音量
# amixer cget numid=16,iface=MIXER,name='Master Playback Volume'

//设置耳机的音量
# amixer cset numid=16,iface=MIXER,name='Master Playback Volume' 48

//静音
# amixer cset numid=17,iface=MIXER,name='Master Playback Switch' Off

 

来源：oschina

链接：https://my.oschina.net/u/4335103/blog/4260718