qmidiroute - Online in the Cloud

PROGRAM:

NAME

qmidiroute - MIDI event processor and router

SYNOPSIS

qmidiroute [OPTION] [file]
qmidiroute { --help | --version }

DESCRIPTION

qmidiroute is a versatile MIDI event processor and router for the ALSA sequencer. The
graphical interface is based on the Qt4 toolkit. qmidiroute permits setting up an
unlimited number of MIDI maps in which incoming events are selected, modified or even
changed in type before being directed to a dedicated ALSA output port. The maps work in
parallel, and they are organized in tabs. With qmidiroute it is for example possible to
change or invert the scale of a keyboard, to transform keyboard strokes into program
changes or controller data into notes.

Incoming MIDI events can be logged in a list and are displayed in different colors
according to their MIDI type. qmidiroute provides one ALSA input port and as default two
ALSA output ports. The numerical ALSA client id is displayed as part of the window title.

General Usage
After starting the application, the Unmatched tab is presented (see below). To start MIDI
routing setup, the New map... button can be clicked, which will create a new MIDI map
appearing as a tab in the map area. The entire setup can be saved to and loaded from a
QMidiRoute file (.qmr). Several maps can be created to work in parallel. The maps can be
organized using the Map Rename, Remove and Clone buttons. The Event Log is displayed in
the bottom area by default, but can be hidden if not needed or floated as a top-level
window on the desktop. Logging can also be disabled generally or for MIDI Clock events
only.

MIDI Input
The Input field represents the incoming event filter of each map. Handled event types are
Note, Controller, Pitchbend and Program Change. The events can be filtered by their
respective values or by MIDI channel. Events matching the conditions specified in the
Input field are directed to the Output field.

MIDI Output
The Output field sets terms into which event type the matching events are transformed, how
their channel and values are transformed, and to which ALSA port they are directed.
Channels and Values can be set Fixed, Offset or Reverse Offset with respect to the input
event. As an example, Reverse Offset will take the value specified and subtract the
incoming event value from it to produce the output event value. If the output range for a
value is different from its input counterpart, the input range will be smoothly scaled to
the output range. Events will be sent to the ALSA port specified. The number of available
ALSA ports can be set using the corresponding command-line option.

Unmatched MIDI events
In the Unmatched tab, the handling of events not matching any input filter of the defined
maps is specified. These events can be discarded or sent to a specified ALSA port.

OPTIONS

--portCount <num>
Set the number of available ALSA output ports to <num>. The default is 2.

--help Print possible command-line options and exit.

--version
Print version information and exit.

file Name of a valid QMidiRoute (.qmr) file to be loaded on start.

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