The system sends notes and other events to an endpoint, which may be an MIDI output (actually a MIDI output port, multiple portsĬan sound together), effecting chain or other MIDI events consumers. Most common kind of event is the note event, which represents a music note. Each track consists of one or more events. The MIDI system parses the standard midi format (SMF) or other computer music formats into a MIDI sequence including several Interestingly theĬoreMIDI midi server and the CoreAudio audio server are all native 64-bit (x86-64) processes. Later I found that QT7 is an app in i386Īrchitecture, and furthermore GarageBand (the guitar study and playing app bundled with OS X) is 32-bit too.
Since QuickTime X has been installed and can already playback some common media formats. When I opened the ‘.midi’ file at first time, the system told me QuickTime 7 should be downloaded and installed. Some readers may already know the low level CoreMIDI framework, which is good. Mac OS X provides MusicToolbox APIįor facilitate MIDI file playback applications. This time I need a command-lineĪpplication for MIDI files playback on OS X (at least useful for larger MIDI system testing).
(I assume you, the reader has some related background and C language knowledge.)įor a graduate with *nix background, a console tool is very handy for kinds of situations. Learning MusicToolbox in OS X for MIDI file(s) playback
