alsa equalizer issue

view story

https://bbs.archlinux.org – First ,i compile the software: 1 alsaequal-0.6.tar.tar[http://www.thedigitalmachine.net/alsaequal.html] 2 caps_0.9.7.tar.bz2 sccond i modify my /etc/asound.conf ctl.equal { type equal; } pcm.plugequal { type equal; slave.pcm "plughw:0,0"; } pcm.equal{ type plug; slave.pcm plugequal; } And then, i play the music,and it is ok. # aplay -D equal 16k_mono.wav & # Playing WAVE '16k_mono.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono Bug i get the error information when i input the cmd. # amixer -D equal ALSA lib ctl_equal.c:268:(_snd_ctl_equal_open) Problem with cont (HowTos)