MIDI to WAV or MP3 is a different story, though.
Computers can record and play back the composite sound wave, and they can manipulate it in various ways, but they aren't capable of separating it into its additive components (yet). Your ear and your brain, working together, separate the sounds out again. The problem with converting WAV or MP3 to MIDI is that the music you hear comes into your ear as a single composite sound wave that is created by adding together all of the sound waves produced by all of the instruments that are playing. An MP3 file is a WAV file that has been put through a compression algorhythm so that it can be stored in a smaller space.A WAV file stores a digitized copy of the composite sound wave generated in the air by actual music (or other sounds).A MIDI file stores instructions to the sound card to manipulate generic sounds that are stored in a sound bank on the computer.You know this, Rick, and I suspect Tom knows it, but for the benefit of those who might have suddenly become mystified by your last exchange: Unfortunately for us at the moment, the technology still has a very long way to go. I'm not bagging these products - they are attempting to perform an incredibly complex task. The results are tolerable as a quick and dirty start but are more a hint of what may come than a realistic solution. The source wavs are very pronounced, almost monophonic and quite emphasised, and do not have many instruments nor concurrent note changes. May give some candlelight at the end of the tunnel. Also the recognition is influenced by quality of WAVE recordings such as background noises and recording level. Moreover, human voice and instruments have various timbres and complicated harmonic components, therefore recognition accuracy depends on concrete instrument or singing style.
Composer doesn't automatically recognize the types of sounding instruments. Composer determines note dynamics and frequencies and translates this information into MIDI events. This means you won't get the appropriate results if you try to recognize many instruments playing at the same time especially with drums.
Quote Composer normally recognizes polyphonic music with one instrument or voice.
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