This example is for video, but the "equalizer" component is the same: C:\Progra~1\VideoLAN\VLC\vlc -vvv "C:\video.wmv" --sout=#transcode{afilter=#equalizer{preamp=20,preset=flat},vcodec=h264,vb=0,scale=0,width=0,height=0,acodec=aac,ab=128,channels=2,samplerate=44100,deinterlace}:...