Operation Manual

Owner's Manual
4 - 77
Edit Section
MIDI
MIDI Filters
Filters can be very useful in cases where particular MIDI messages are not required.
For example, if WX is slaved to an instrument that sends control messages that may cause
some interference with the instrument, they can be filtered from the incoming MIDI
stream. Similarly, you can filter off messages from the WX MIDI OUT data so that the
receiving unit does not receive the unwanted data.
Filters prove to be particularly useful when MIDI IN data is merged with MIDI OUT
data, using the MIDI MERGE function (see MIDI Merge further ahead).
Press PAGE to access the MIDI FILTERS page:
This page is entirely dedicated to the assignment of up to 6 MIDI IN filters and 6 MIDI
OUT filters to each Track of the current Performance.
The display shows two columns, one for the IN stream and the other for the OUT stream.
The first four messages are fixed and can be made to pass or they can be filtered. The
remaining two items are programmable and allow the specified data to be filtered.
When a Filter is set to “Off”, all data passes.
When a Filter is set to “On”, or in the case of the last two menu items, when specific data
is specified, it is eliminated from the MIDI stream.
The Filter parameters
Poly pressureThis is an Aftertouch message that WX cannot generate but it can receive
through MIDI IN. Filtering this message from the MIDI IN stream
prevents its reception.
In more complex situations, WX can process MIDI data by merging
MIDI IN data with MIDI OUT (using MIDI Merge - discussed further
ahead). In this case, if the merged data being transmitted at MIDI OUT
contains POLY Pressure that might not be required by the receiving unit,
it can be filtered off.
Program Change Filtering this message could be useful in certain advanced cases
involving three or more instruments and exploiting the MIDI MERGE
function (see MIDI Merge).
After Touch Filtering this message (Mono touch) prevents the relative data from being
received or transmitted. This is particularly useful in cases where a
receiving instrument could interpret Aftertouch information in a manner
that could interfere with the correct operation of the instrument.
Pitch bend Pitch bend data can be filtered from both IN and OUT streams. This is
particularly useful in cases where a receiving instrument could interpret
Pitch Bend information in a manner that could interfere with the correct
operation of the instrument.
Downloaded from www.Manualslib.com manuals search engine