delopart@lucas:~$ ecasound -i /tmp/temp.mp3 -etf:8 -o /home/delopart/ntr.mp3
********************************************************************************
*        ecasound v2.5.2 (C) 1997-2008 Kai Vehmanen and others    
********************************************************************************
- [ Session created ] ----------------------------------------------------------
- [ Chainsetup created (cmdline) ] ---------------------------------------------
- [ Connecting chainsetup ] ----------------------------------------------------
(eca-chainsetup) 'nonrt' buffering mode selected.
(eca-chainsetup) Opening input "/tmp/temp.mp3", mode "read". Format: s16_le, 
... channels 2, srate 44100, interleaved (locked params).
(eca-chainsetup) Opening output "/home/delopart/ntr.mp3", mode "write". 
... Format: s16_le, channels 2, srate 44100, interleaved (locked params).
- [ Chainsetup connected ] -----------------------------------------------------
(eca-control-objects) Connected chainsetup: "command-line-setup".
- [ Controller/Starting batch processing ] -------------------------------------
- [ Engine init - Driver start ] -----------------------------------------------
(audioio-mp3) Starting to encode /home/delopart/ntr.mp3 with lame.
(audioio-mp3) Can't start process "mpg123 --stereo -r %s -b 0 -q -s -k %o %f". Please 
... check your ~/.ecasound/ecasoundrc.
- [ Controller/Batch processing finished (0) ] ---------------------------------
(eca-control-objects) Disconnecting chainsetup: "command-line-setup".
- [ Chainsetup disconnected ] --------------------------------------------------
delopart@lucas:~$