p.s.: Most people are used to read texts top-down, so please do not top-post. > Than have to update the task with mplayer, it's > -playing one sound without soundcard in command line You can use something like mplayer sound.mp3 -ao pcm:nowaveheader:file=stream.pcm with stream.pcm being a fifo. > -in real time, to be clear: 3 min mp3 file would play during 3 min not in > one sec If you have to, you can put a brake in the resulting stream like cat stream.pcm | pv -L 176400 but please do not assume that will be directly playable, usually the soundcard sets the playback speed. Therefore I can see no need to slow down processing of the sound. > -while playing modifying volume, equalizer, speed via input file option or > other way > -creating output wav or mp3 or similar to file or stdout The above command should do that, but changing the speed while demanding to play in real time makes no sense to me. Greets, Kiste
