Apple Logic Pro 7.1 Uživatelský manuál stáhnout pdf (Strana 2)

Logic Pro 7.1 – MIDI Setup (2005-0905) 2 of 13

One to One MIDI Setup

Playing the keyboard generates the MIDI Message that will be send on one of the 16 MIDI channels on Port 1 which is available on the MIDI connector

labeled “MIDI Out”. Connecting a MIDI cable from that “MIDI out” connector to a Sound Modules “MIDI IN”, will send that MIDI Message to the Sound

Module, which plays a sound assigned to that MIDI Channel.

Computer MIDI Setup

A “MIDI interface” is the general term for that (build-in) part of a MIDI device with the MIDI jacks, which enables the sending and receiving of MIDI

signals. A Computer, which you can use to run a MIDI sequencer application, doesn’t have a build-in MIDI interface. For this purpose you use an

external MIDI interface, which has the MIDI jacks (up to 8 MIDI ins and outs) and a USB connector to run the MIDI messages from the Box to the

Computer. Note that a MIDI cable is always one-directional where the USB connection between the MIDI interface and the computer is bi-directional.

The (up to 8) MIDI in and MIDI out connectors show up on the MIDI sequencer as 8 MIDI in Ports and 8 MIDI out Ports. The Sequencer also acts as MIDI

routing device where you can direct specific incoming ports to specific MIDI tracks and the output of MIDI tracks to specific out ports.

Each MIDI interface needs a driver, which is a little piece of software with basic instructions for the communication between the hardware and

software.

Networked Computer MIDI Setup

A more complex setup connects two or more computer systems (Computer A, B, C…) via a network. Her is the idea:

• The MIDI Computer processes all the MIDI messages (incoming and outgoing) internally

• Almost all Computers nowadays have Ethernet network capabilities and are most likely connected to a LAN or the Internet.

• Route the internal MIDI signal to the Ethernet port and send/receive MIDI over the network to and from other MIDI computers.

Now you can play your sequence you were working on your laptop (B) through the MIDI devices connected to your Studio computer (A) or you can have

one or more extra computer running Logic with fully loaded EXS or audio instruments and send the MIDI via Ethernet without the need of expensive

MIDI interfaces to handle the MIDI signal flow.

Computer A

Computer B

Computer C ..

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Apple Logic Pro 7.1 Uživatelský manuál Strana 2