هل يعمل جهاز MIDI؟
Detect connected MIDI instruments and controllers, view real-time MIDI messages, and verify that note, control, and pitch data are received correctly — all in your browser.
This tool uses the Web MIDI API to enumerate connected MIDI input and output devices, display their names and manufacturers, and visualize incoming MIDI messages (note on/off, control change, pitch bend) in real time.
The MIDI protocol has remained virtually unchanged since 1983, operating at 31.25 kbaud. MIDI 2.0 was ratified in 2020 with higher resolution (32-bit vs 7-bit values) and bidirectional communication.
No MIDI devices detected.
ماذا تعني نتائجك؟
| Result | Range | Meaning |
|---|---|---|
| جيد | MIDI devices detected and messages received | Your MIDI devices are properly connected and communicating. Note events, control changes, and other MIDI data are being received correctly. |
| تحذير | Device detected but no messages or partial data | The device is recognized but may not be sending data. Check that the device is powered on, the correct MIDI channel is selected, and cables are fully seated. |
| سيئ | No MIDI devices found or API unsupported | No MIDI devices are connected, drivers are missing, or your browser does not support Web MIDI. Chrome and Edge support Web MIDI; Safari and Firefox do not. |
المشاكل الشائعة وكيفية إصلاحها
No MIDI devices appear in the list
Ensure your MIDI device is connected via USB (or USB-MIDI adapter for 5-pin DIN connections) and powered on. On macOS, check Audio MIDI Setup. On Windows, check Device Manager for MIDI devices. Try unplugging and reconnecting.
Device is listed but no MIDI messages appear when playing
Verify the MIDI device is set to transmit on a channel the tool is listening to. Some controllers have a 'Local Off' setting that prevents MIDI output. Check your device's configuration and ensure it is not in a setup or programming mode.