Specifies the port from which to receive incoming MIDI messages. If there is no argument, polyin receives from all channels on all ports.
The name of a MIDI input device may be used as the first argument to specify the port. The name 'all' can be used to enable the reception of MIDI messages from any port. The name 'none' can be used to prevent the object from receiving MIDI messages from any port.
A letter and number combination (separated by a space) indicates a port and a specific MIDI channel on which to receive polyphonic key pressure messages. Channel numbers greater than 16 will be wrapped around to stay within the 1-16 range.
A number and number combination (separated by a space) indicates a specific key and a specific MIDI channel on which to receive the polyphonic key pressure message. Channel numbers greater than 16 will be wrapped around to stay within the 1-16 range.
A number alone can be used in place of a letter and number combination. The exact meaning of the channel number argument depends on the channel offset specified for each port in the MIDI Setup dialog.
matchport [int] (default: 0)
If the port argument doesn't match an existing port or device name, set the object's MIDI port to 'none'.
Set the object's MIDI port based on a device name. The attribute will attempt to do a case-sensitive partial string match based on the attribute's value.
Common Box Attributes
Out left outlet: The number is the pressure value of the incoming polyphonic key pressure message.
Out 2nd outlet: The number is the pitch value (key number) of the incoming message.
If a specific channel number is included in the argument, there are only two outlets. If there is no channel number specified by the argument, polyin will have a third outlet, on the right, which will output the channel number of the incoming note-on message.