Demo and technical video here https://youtu.be/HNIg9ulWAKQ

MIDI Monitor — Precision Tools for Power Users

Designed for developers, producers, and MIDI enthusiasts who need more than just raw message dumps, this MIDI Monitor redefines serious MIDI analysis. You can capture every MIDI message on your system and from your Voltage Modular patches, giving you full control over what you see—and what you don’t.

Key Features & Benefits

• Real-time capture of all MIDI

  Capture both external and internal MIDI traffic within Voltage Modular.
  Benefit: See exactly what your patch is receiving and sending with zero guesswork.

• Total MIDI filtering

  Filter by channel, message type, note/CC ranges, and SysEx.
  Benefit: Instantly mute noisy controllers or narrow in on the events that matter.

• Log suppression:

  Cut down on the number of repeatable messages to narrow down the result set.
  Benefit: Essential for MPE users who other wise will have to scroll a log for meaningful messages.

• Suppression log of filtered messages.

  Keep individual running totals of every message blocked.
  Benefit: Perfect for debugging complex setups.

• Reason Logging (Reason users only)

  One-click decoding of SysEx messages from PoohBear's Reason Codec logging system.
  Benefit: No more complicated setups—logs appear instantly in readable form.

GUI Controls

• Manage – Open or close MIDI ports from the list.
• List Open – Displays currently open ports. Useful for tagging log files with active ports.
• Close All – Closes all open MIDI ports.
• List All – Lists all available MIDI ports on your system.
• Edit Mode – View and edit the last 500 log rows. You can scroll, highlight, copy, and annotate.
  Note: Logging continues in the background, but the display is frozen until Edit Mode is turned off. Edits are not saved to the main log.
• Options – Opens the options panel. See below for details.
• Clear Log – Clears the entire log.
• Pause Log – Temporarily freezes logging.
• Auto – Links MIDI ports from the I/O panel without cables.
• MIDI Input Port – Accepts MIDI from any other MIDI port in Voltage Modular.
  *Note: Only one device per VM session can receive data via the backend I/O panel method. However, the I/O panel MIDI port socket can send to multiple modules.

Options

There are 57 configurable options:

MIDI Filtering

• Real-Time Messages

  • Select which RTMs to log
  • Option to disable all RTMs

• Channel Messages

  • Choose which channel messages to log
  • Filter down to individual MIDI channels

• Suppression Options

  Designed with MPE in mind but works with standard MIDI too. Suppresses repeated messages per channel and type.

  • Note On / Note Off – Clears suppression when a note on/off is received. Logs one message per type until the next trigger.
  • Per Time (sec) – Logs one message per type, then clears suppression after a set time (1–99 seconds).
  • Note: If only this option is used, note messages are also suppressed.
  • Log Summary – Optionally logs how many messages were suppressed when the suppression log is cleared.

Other Logging

• Note/CC Name – Displays readable note names (e.g. C3, C#3) and common CC labels (e.g. CC1 = Modulation Wheel)
• Reason Logging – Integrates with Reason codec logging via SysEx. Displays readable logs from sandboxed Reason environments
• SysEx – Shows a short summary of received SysEx messages (port and length)
• Full – Displays the full SysEx message content

Logging Display Colors

Customize the log display window:

• Text and background color
• Font type and size

Log Info

• Displays total number of log rows (max: 100,000)
• When the limit is reached, the log wraps around but this will just show the maximum

Export What

• Export the full log in tab-delimited format (Excel-ready)
• Split into two sections: MIDI Messages and Other Logging
• You can exclude either section from the export

Background Color Menu

Double-click the Bear (gently!) to open the color menu:

• Choose a new color
• Lock or unlock module color Locking Behavior: Locked modules ignore global color changes. Unlocked modules follow the global color index. New modules are unlocked by default; existing ones are locked.

Build #21.25.08.27: Public Release.