Orchestrating Innovation: Creating a MIDI Interface in LabVIEW
summary
Implements a LabVIEW MIDI interface that actually sends and receives messages: a MIDI file driver that reads the whole file into a byte array for speed, a C++ wrapper for DLL callbacks to post LabVIEW user events, and a custom 2D picture control UI that maps 88 keys and updates on demand. Uses the Windows multimedia DLL for MIDI in/out, filters callbacks to note on/off, handles ~4,000-note files with acceptable latency, and demonstrates end-to-end playback to a physical keyboard.
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chapters (14)
- 0:00Introduction
- 1:19Piano and MIDI inspiration
- 2:45Live piano UI demo
- 4:11Building piano UI with 2D control
- 8:46Rendering keys mathematically
- 10:12MIDI device communication issues
- 12:19MIDI output via Windows DLL
- 13:47Wrapping MIDI DLL for LabVIEW
- 16:59Processing MIDI input events
- 18:32Reading MIDI files
- 21:47Efficient MIDI parsing
- 24:41Playing MIDI files
- 26:10Live MIDI player demo
- 27:39Q&A
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