Using this command the mplayer stops running after less than 1 sec and that's why can't be controlled via commands in some input file. Mplayer has to be playing till the mp3 song is ended because of this controlling. So to be more precious my task looks like that: the user on client side (flash) can control the volume of inputs speed of inputs equalizer of inputs and can listen the result. On server side those input mp3 files would be the inputs of mplayer, but for only one reason that is to set the volume, speed of input mp3, and equalizer, and these parameters would go from flash to linux server via php socket. The 2 result mp3 stream coming from mplayer would go directly back to the user, or via flash media server if needed, with the modified volume etc. levels that can be heared by the user. So will need an mplayer command with one input mp3 file ,where the speed, volume, equalizer can be changed via input file or stdin during the play time if I think good this possible eg. in slave mode and the output should be mp3 file. That in command line on linux without sound card. so could start like that : mplayer -slave sound.mp3 Equalizer and speed can be modified in slave mode ? Thanks, Regards, Zol > > _______________________________________________ > MPlayer-users mailing list > MPlayer-users at mplayerhq.hu > https://lists.mplayerhq.hu/mailman/listinfo/mplayer-users >