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>The <SPAN
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>aRts</SPAN
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>Chapter 5. <SPAN
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><A
NAME="MIDI-MANAGER"
>5.2. The Midi Manager</A
></H1
><P
>The central component in aRts that keeps track which applications are
connected and how midi events should be passed between them is the midi
manager. To see or influence what it does, start artscontrol. Then, choose
<SPAN
CLASS="GUILABEL"
>View</SPAN
>+<SPAN
CLASS="GUILABEL"
>View Midi Manager</SPAN
> over the menu.</P
><P
>On the left side, you will see <SPAN
CLASS="GUILABEL"
>Midi Inputs</SPAN
>. There, all
objects that produce midi events, such as an external midi port which sends
data from a connected midi keyboard, a sequencer which plays a song and so
on will be listed. On the right side, you will see <SPAN
CLASS="GUILABEL"
>Midi
Outputs</SPAN
>. There, all things that consume midi events, such as a
simulated sampler (as software), or the external midi port where your hardware
sampler outside your computer is connected will be listed. New applications,
such as sequencers and so on will register themselves, so the list will be
changing over time.</P
><P
>You can connect inputs and outputs if you mark the input on the left side and
the output on the right side, and choose <SPAN
CLASS="GUILABEL"
>Connect</SPAN
> with
the button below. <SPAN
CLASS="GUILABEL"
>Disconnect</SPAN
> works the same. You will
see what is connected as small lines between the inputs and outputs, in
the middle of the window. Note that you can connect one sender to more than
one receiver (and the other way round).</P
><P
>Programs (like the Brahms sequencer) will add themselves when they start
and be removed from the list when they are terminated. But you can also add
new things in the <SPAN
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>Add</SPAN
> menu:
<DIV
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><DL
><DT
><SPAN
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>System Midi Port (OSS)</SPAN
></DT
><DD
><P
>This will create a new aRts object that talks to an external midi port.
As external midi ports can do both, send and receive data, choosing this option
will add a midi input and a midi output. Under linux, you should either have
an OSS (or OSS/Free, the thing that comes with your linux kernel) or an ALSA
driver for your soundcard installed, to make it work. It will ask for the name
of the device. Usually, this is /dev/midi or /dev/midi00. However, if you have
more than one midi device or a midi loopback driver installed, there might be
more choices. To see information about your midi ports, start the KDE
Control Center, and choose <SPAN
CLASS="GUILABEL"
>Information</SPAN
>+<SPAN
CLASS="GUILABEL"
>Sound</SPAN
>.</P
></DD
><DT
><SPAN
CLASS="GUIMENUITEM"
>aRts Synthesis Midi Output</SPAN
></DT
><DD
><P
>This will add a new midi output with an aRts synthesis instrument. If
you choose the menu item, a dialog will pop up, and allow you to choose an
instrument. You can create new instruments using artsbuilder. All
.arts-files with a name that starts with "instrument_" will appear here.</P
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