In order to convert your MIDI to MP3 you have two easy options.
1. Record your Yamaha line output to an external device and convert the recorded material to MP3 or
2. Take the MIDI-file import it to for example Reason, assign all the miditracks to samplers, export the whole song as a Wave, stereo interleaved, take that output file and convert with Wavelab or Soundforge or another program to MP3.
Good luck!
Robert
Jan 24, 2009 Rating
midi to mp3 - Yamaha PSR-S900 by: Mike
You can also use Audasity (free download). Go from your headset jack on keyboard to line in on your computer. Audasity will record your midi song. Export (save) as a mp3 or wav file. Audasity also has a lot of functions that will enhance your songs.