User Manual
RECORDING
230
Transpose Map that constrains all notes to within a
certain scale — which automatically cleans up any
wrong notes that you play! Or you can apply a
MIDI echo as you record. See “Working with
effects plug-ins” on page 821 for details.
Auto channelizing in a song
If a song is play-enabled in the Chunks window
instead of a sequence, the following two conditions
are necessary for Auto Channelizing to occur: 1) a
sequence within the song must be record-enabled,
and 2) a track within that sequence must also be
record-enabled. If both are true, then MIDI Patch
Thru will operate in the same manner as described
above. For information about record-enabling
sequences in a song, see chapter 69, “Songs”
(page 785).
Auto channelizing and the Input Filter
The Input Filter affects incoming data in MIDI
Patch Thru mode. All data selected to be filtered
out will not be echoed to the outputs. For example,
if the pitch bend box is not checked in the Input
Filter dialog box, pitch bend information will not
be echoed through in MIDI Patch Thru.
Patching thru in the background
Digital Performer continues to patch thru even
when it is in the background, i.e. not the active
application. For example, if you bring another
program to the front, you’ll still be able to patch
thru from your controller via Digital Performer.
MIDI beat clocks and MIDI Patch Thru
If you use MIDI Patch Thru with a drum machine
or any device that outputs timing information, the
timing information will not be echoed through. To
echo timing information, see chapter 88, “Transmit
Sync” (page 973).
MIDI patch thru via a MIDI interface
Some MIDI interfaces, such as the MIDI
Express XT, have a patch thru option built into
them. If you choose to use the echo feature, turn off
MIDI Patch Thru on Digital Performer or
incoming data will be echoed twice. If you choose
to use MIDI Patch Thru in Digital Performer, turn
off the echo feature on the interface for the same
reason.
Sync Recorded MIDI to Patch Thru
If you have a MOTU USB MIDI interface, Digital
Performer records with an extra degree of
precision. When you are recording with MIDI
Patch Thru turned on, Digital Performer places the
events in the track so that what you heard yourself
play when recording is exactly what you’ll hear
when you play back your performance. To do this,
Digital Performer must compensate for the
inherent, small amount of time it takes for the
computer to receive the incoming MIDI data and
send it back out to the patch thru destination. It
does so by placing the event in the track a few
milliseconds after the time at which it was actually
received.
However, there may be times when you are not
listening to your performance via Digital
Performer’s MIDI Patch Thru. For example, you
might be playing your synthesizer with local
control turned on, i.e. triggering sounds directly
from its own keyboard. In this situation, be sure to
turn MIDI Patch Thru off. Or, leave MIDI Patch
Thru on and disable the Sync Recorded MIDI to
Patch Thru option in the MIDI Patch Thru dialog
(Studio menu) as shown below in Figure 24-7 on
page 228. Doing so ensures that events are
recorded exactly when they’re received (as you
heard when playing them).
Patch Thru in Background
The Patch Thru in Background option (Figure 24-7
on page 228), when checked, lets you continue to
use Digital Performer’s MIDI patch thru, even
when DP is not the active application. For example,
you could switch to the computer desktop and still
continue to play a virtual instrument from your
controller.