9.2 The Merge Filter
9.2 The Merge Filter
The Merge Filter
Merging MIDI signals leads to specific problems, above
all if "system overlapping" messages are concerned.
For instance. ROLAND keyboards send the MIDI
message "All Notes Off" as soon as all keys are
released, which switches off all notes played.
Normally, this is to be welcomed, or at least it doesn't
matter, since all notes must be muted after releasing
the keys.
However, if two keyboard players control one expander,
all notes played by one player will be cut off as soon as
the other keyboard player releases the keys on his
keyboard. Also merging different types of data might
lead to problems.
Therefore, the MIDI BAY uses a merge filter which
fades out critical data types - individually for both
merger inputs.
The various filters are programmed in the Merge Filter
Mode which can be activated by depressing the [Mode]
key three times.
Using the [Down] key you may now select the individual
filters. The display reads the corresponding
abbreviations while the two decimal points indicate the
filter status of the two merger inputs. This means: if the
decimal point is lit, the MIDI data can pass through the
filter without restriction. If the decimal point is not lit, the
data is filtered out. The left decimal point is effective on
the first merger input (i.e., connector [Source 1]), the
right decimal point refers to the second merger input.
Use the [Up] key to activate the filter for the desired
input(s).
MIDI BAY Manual
