MIDI to WAV & WAV to MIDI

What do u mean by do the conversion? Like using a dedicated software? Try CoolEdit. It can make conversion between a large number of audio formats.

But there are lots of softwares that can convert audio files between these two formats. I would like to know how those softwares work.

But there are lots of softwares that can convert audio files between these two formats. I would like to know how those softwares work.

No, there isn't. MIDI is a series of instructions to musical instruments. WAV is a digitized version of an audio signal. WAV to MIDI is impossible. Some programs, such as Cakewalk's Sonar can convert MIDI to WAV, but they would have to do it by actually playing the MIDI file at a higher speed than specified, recording it, then somehow converting the WAV to actual speed. What the mechanics of doing that are, I don't know, but I imagine it isn't easy.

So... How do you think about this one?

http://timidity.s11.xrea.com/index.en.html

It does just what I said. Plays the MIDI files throughGravis Ultrasound sound fonts, and records what is played as WAV. There's no other way to do it.

Thats exactly what Cakewalk does to. I write a score on sheet music which is recorded as a MIDI file. To convert that to a wavefile you have to play it through a synthesizer (my Soundblaster Live card) and record it. Cakewalk makes that effort kind of automatic. Hpwever, it takes as long to generate the file as it does to play the actual music. No conversion here...just brute force. I wish wav files COULD be transformed to MIDI!

Brian

No, there isn't. MIDI is a series of instructions to musical instruments. WAV is a digitized version of an audio signal. WAV to MIDI is impossible..

Quite Wrong... There are various program which can do that, but for the reasons you explain, none of them do that perfectly. Such a program, in fact do what you would do by transcribing the music to a music sheet. Now, it is not easy to identify what is a note and what is a higher harmonic from another note. For this reason, most those programs are unable to separate all notes from a polyphonic track better than your ears would.

Some programs, such as Cakewalk's Sonar can convert MIDI to WAV, but they would have to do it by actually playing the MIDI file at a higher speed than specified, recording it, then somehow converting the WAV to actual speed. What the mechanics of doing that are, I don't know, but I imagine it isn't easy.

They don't really need to change the speed of the music. Since they are not playing it for human ears, they just do it in the computer's memory where real time does not really exist. (Computers processors only know their own clock which can go faster or slower from one CPU to another. For real Time, they need to synchronise on an external clock)