Specifications

MENU AND DIALOG REFERENCE
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Latency Compensation
This control should normally only be adjusted when synchronizing Reason to ex-
ternal MIDI Clock.
Because of the latency problem, you might need to adjust Reason’s playback in
relation to the MIDI Clock sync master, so that they are in perfect time. The
tempo will not differ between the two, but Reason might play ahead or behind
the other application. You might need to adjust this. However, this is something
you only need to do once. The setting is stored with your other preferences, so
you don’t need to adjust it again.
Proceed as follows:
1. Set up the other application so that it generates a solid click, on for
example quarter or eighth notes, preferably with a special sound on
the downbeat. This click can either come from an internal metro-
nome or from a MIDI source. If you use a MIDI source, make sure
you pick one that has solid MIDI timing.
2. Set up Reason so that it plays a similar rhythm as the other applica-
tion. You might for example use the Redrum drum computer for
this.
3. Start the two applications in sync.
4. Make sure you hear both applications at approximately equal level.
5. Open the Preferences dialog in Reason and select the Audio page.
6. Trim the “Latency compensation” setting until the “clicks” from the
both sources sound at exactly the same time.
7. Close the Preferences dialog in Reason.
Preferences – MIDI
Sequencer Input & Channel
The Sequencer is the “standard” port for receiving MIDI input. This is what you
should be using if you intend to use the Reason sequencer.
Once you have selected your MIDI interface on the Sequencer Port pop-up (and
which channel it should receive on), you can direct incoming MIDI to any device
by just clicking the “In” column to the left of a track name in the track list.
Preferences – Advanced MIDI
External Control Bus Inputs
The External Bus inputs provide up to 64 MIDI input channels divided into four
buses, each with 16 channels.
D These MIDI inputs are primarily for controlling Reason Devices from
an external sequencer.
This could be an external hardware sequencer or sequencer software that is in-
stalled on the same computer as Reason. You should preferably use a multiple
port MIDI interface, so you can select separate ports for Reason and the other
MIDI devices to use, although this isn’t strictly required. See the chapter “Rout-
ing MIDI to Reason” in the electronic documentation.
Remote Control Input
The Remote Control input is used for assigning a MIDI port for receiving MIDI
Controller messages. How to use Remote Control is described in the electronic
documentation in the chapter “MIDI and Keyboard Remote Control”.
MIDI Clock Input
Using MIDI Clock, you can slave (synchronize) Reason to hardware devices
(tape recorders, drum machines, stand alone sequencers, workstations etc.)
and other computer programs running on the same or another computer. MIDI
Clock is a very fast “metronome” that can be transmitted in a MIDI Cable. As
part of the MIDI Clock concept there are also instructions for Start, Stop and lo-
cating to sixteenth note positions.
D By first selecting the appropriate MIDI input using the MIDI Clock
pop-up and then selecting “MIDI Clock Sync” on the Options menu,
Reason is made ready to receive MIDI Clock sync.
See the “Synchronization” chapter for more information.
Disable MIDI Priority Boost (Windows & Mac OS 9 only)
Reason normally tries to trim your computer system so that MIDI Input gets a
higher priority than it normally does. This is to ensure best possible performance
when for example recording notes via MIDI.
However, we can not guarantee that this attempt to boost MIDI priority will work
on all systems and with all MIDI Interfaces. If you run into problems with your
MIDI, try activating this switch.