MIDI (Musical Instrument Digital Interface) is both a way of connecting to digital musical intruments and a way compactly recording music for playback by digital musical istruments or a software sythesiser in a computer.
MIDI came out in 1991. An augmented, upward compatible MIDI-2 came out in 1999. DLS (Down Loadable Sounds) enables sampling, making sounds with a wavetable sound capture rather than mathematicallly. XMF (extensible Music Format) combines MIDI and DLS in one file.
The MIDI stream sent to instruments over the 5-pin DIN (Deutsches Institut für Normung/German Institute for Standardisation) serial connection contains no embedded timing information. The notes are sent the instant they are intended to be played. MIDI files on the other hand need embedded timing information to track when to send the commands.
It allows you to interconnect various MIDI-compatible electronic musical instruments such as keyboard, synthesiser, electronic drum set etc. and to connect them all to your computer. It allows you to play an instrument and have the computer convert your playing to sheet music, or to automatically play electronic MIDI sheet music, much like a player piano. A sound card usually comes with a built-in MIDI compatible synthesiser. It usually is a crummy sounding FM synthesiser, but on higher end sound cards it can be a full wave table synthesiser that can accurately simulate any combination of acoustic instruments. MIDI is very compact way of storing music. You can pick up a whole song off the Internet in a few seconds and start playing it immediately using the Crescendo add-in software to your web browser.
MIDI is a very simple serial interface. It uses only 3 pins of a 5-pin DIN connector. Inexpensive synthesizers are missing the MIDI connector. They use a USB (Universal Serial Bus) port intended to plug into a computer.
|male MIDI connector||male MIDI pinouts.
1=unused 2=shield 3=unused 4=positive 5=negative
|USB2-B connector that
plugs into the
|USB2-A connector that
plugs into the
|USB2-A slot on the
|Bach||Jesu Joy of Man’s Desiring||Maple Leaf Rag||Ain’t Misbehavin|
|Ain’t we Got Fun||The living Love catalyst||The Bodyguard||I Can see Clearly Now|
|The Impossible Dream||Killing me Softly||Do the Locomotion||Puff The Magic Dragon|
|Start Me Up||Take Five||Wind Beneath My Wings||The Pearl Fishers|
If you are a musician, you can modify MIDI files to use different instruments, and feed them into your digital musical instruments. You can also modify the music as you please, to change the tempo or even even the notes and durations.
Basically, MIDI just tells your computer to play middle C for 250 milliseconds sounding as best like a piano or a trumpet as it can. The quality of the sound card hardware and the software synthesiser in the computer playing the MIDI file has a lot to with how lush and realistic the performance sounds. It will sound totally different played on different computers. Only the timing and pitch will match.
There are at least 4 flavours of MIDI : MIDI 0, MIDI 1, RIFF (Resource Interchange File Format) MIDI 0, RIFF MIDI 1.
There are over 60 different downloadable MIDI formats, that are converted to a standard format for timed commands sent to the instruments.
getAppletContext().showDocument ( new URL ( getCodeBase(), "test.mid" ) );They would need a Midi player installed. The music must exist in a file accessible via URL (Uniform Resource Locator). You can’t use this trick to play some music you have sitting in a byte array.
|recommend electronic⇒Cakewalk Sonar X1 Studio|
|Cakewalk’s midi composition, recording and editing software.|
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|recommend book⇒Making Music with SONAR Home Studio|
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