Propellerhead Reason - 4.0 Instrukcja Operacji Pobierz pdf (Strona 134)

SYNCHRONIZATION

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About the beginning of the Song

Due to the latency phenomenon, described on page 18, Reason needs some time to

correct it’s playback speed when it first receives the Start command. This can be

noted as a small glitch in the audio playback, when the program starts. If this is a prob-

lem, you need to insert a couple of empty measures at the beginning of the Song. Pro-

ceed as follows:

1. Set the Left Locator to “1 1 1” and the right Locator to “3 1 1“.

2. Click somewhere in the main sequencer area to move the menu focus to the

sequencer.

3. Select “Insert Bars Between Locators” from the Edit menu.

4. Set up the other device/application, so that it also plays two empty bars at

the beginning.

About MIDI Song Position Pointers

MIDI Clock actually consists of five type of messages: The actual clock (the metro-

nome that establishes the tempo), Start, Stop and Continue commands and Song Po-

sition Pointers. This last type of message contains information about positions, so that

a program for example “knows” where in a Song to start playback from.

Normally, this ensures that you can locate to any position and activate playback from

there. In older devices, Song Position Pointers might not be implemented. This means

that you will be able to synchronize properly only if you start both devices from the ab-

solute beginning of the song.

About Tempo Changes

Again, due to the latency phenomenon, Reason needs a bit of time to adjust to

changes in tempo. If there are abrupt changes in the MIDI Clock, due to drastic tempo

changes in the master, you will note that Reason will require up to one measure to ad-

just itself to the change. How long this actually takes also depends on the precision of

the incoming MIDI Clock. The more precise it is, the faster Reason can adjust to it.

If this adjustment is a problem, try to use gradual tempo changes rather than immedi-

ate ones.

! When Reason is synchronized to MIDI Clock, there is no Tempo readout.

MIDI Sync and Focus

The Options menu contains items relating to MIDI sync.

D The “MIDI Clock Sync” button puts Reason into MIDI sync mode.

The transport controls will be disabled, and Reason will not run unless MIDI sync

data is provided from an external device.

The MIDI and Play Focus buttons relate to how incoming MIDI and MIDI sync should

be handled if there are several open Song documents. If you have two or more Songs

opened, and no MIDI sync is used, the currently selected Song (the document “on

top”) always has MIDI focus. If MIDI Sync is enabled (which is global for all currently

open Song documents), this functionality changes in the following way:

D If both “Play” and “MIDI” are activated for a Song, incoming MIDI data

and MIDI sync will be sent to this Song, regardless of whether another

Song is currently in focus.

D If only “MIDI” is activated for Song, and another Song has “Play” focus,

incoming MIDI will be sent to the former and MIDI sync to the latter (i.e

this Song will play back), regardless of which Song is currently in focus.

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