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MIDI Channel Filter Converter

 

MIDI Channel Filter Converter

 

The MIDI Channel Filter Converter unit can be used to reduce MIDI throughput by removing all unwanted MIDI Channel and MIDI System messages and ONLY allowing the required MIDI NOTE ON and MIDI NOTE OFF messages to be passed THRU and converted/changed to their required MIDI Channel.

 

All other MIDI channel and system commands will be blocked and not pass through the unit.

 

The user can request the software to be written for any MIDI NOTE ON/OFF messages on any MIDI Channel (1 to 16) to be converted to any other MIDI Channels.

  

 

 

*Click to Enlarge*

 

MIDI Channel Filter Converter

ITEM#: MIDICHFILTCONV

PRICE:  €50.00


 

  

  

  

 

 

The MIDI Channel Filter Converter unit utilizes:

  • An assembled, built and tested Arduino board including a suitable pre-programmed ATmega microcontroller,
  • A 2.1mm power socket, and associated LED, 
  • A MIDI detection LED,
  • A MIDI IN & OUT board,
  • A 150mm wired MIDI 5-pin DIN input socket,
  • A 150mm wired MIDI 5-pin DIN output socket, 
  • The circuit schematic is available.

 

 

The MIDI Channel Filter Converter requires:

  • A 9 Volt battery or equivalent 9 Volt DC external power source, or USB Connector.

 

MIDI IN/OUT Wiring:

 MIDI_IN_OUT_CONNECTIONS.JPG (212235 bytes)

     *Click to Enlarge*

The MIDI IN and OUT connectors use  5-Pin 180 degree DIN sockets. Note that the MIDI IN/OUT wiring is polarised and the correct pins should be used.

 

 

Operation:

Example 1: this design is for MIDI Note On/OFF commands on channel 2 to be converted  onto channel 1 and also to convert MIDI Note On/Off commands on channel 4 onto channel 1. All other MIDI channel and system commands will be blocked and not pass through the unit.

 

Example 2: this design is for MIDI Note On/OFF commands on channel 2 to be converted  onto channel 1 and also to convert MIDI Note On/Off commands on channel 3 onto channel 11. All other MIDI channel and system commands will be blocked and not pass through the unit.

 

Example 3: this design is for MIDI Note On/OFF commands on channel 2 to be converted  onto channel 1 and also to convert MIDI Note On/Off commands on channel 3 onto channel 1,  and also to convert MIDI Note On/Off commands on channel 4 onto channel 1. All other MIDI channel and system commands will be blocked and not pass through the unit.

 

However if MIDI data from an unrequired MIDI channel is detected it is filtered out and it is not transferred to the output.

Also any non-channel events are filtered out. So any System Common, Realtime or Exclusive events are ignored.

 

    

MIDI Specification: 

 The MIDI Channel Filter Converter commands are all channel (1-16) dependent. The system will also work with MIDI running status.

  

Power Supply:

The  MIDI Arduino board can be powered via the USB connection or with an external power supply. The power source is selected automatically.

 

External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector. A low dropout regulator provides improved energy efficiency.

 

The board can operate on an external supply of 7 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.