Apple Logic Pro 7.1 Bedienungsanleitung PDF herunterladen (Seite 9)

Logic Pro 7.1 – MIDI Setup (2005-0905) 9 of 13

MIDI Network Setup

This Network Device is available since OS X 10.4 (Tiger)

It enables you to route MIDI messages not only through the

connected MIDI interfaces on your local computer but also

through the Ethernet port and send the MIDI messages to another

computer on your local network or even on the internet.

All the discussion so far were dealing with the standard MIDI environment with MIDI

Interfaces, MIDI Devices, Ports, channels etc. You should have no problem with MIDI

configurations with the basic understanding of those concepts .

Entering the relam of MIDI Networking however requires a little background information

in networking: The “MIDI environment” with MIDI messages, channels, ports, in and out

connectors has to conform to the rules of the “Network environment” in order to make it

happen.

All the required setting for that edevaur will be made in the “

Network”

device of the

AMS.

You will notice that there is a lot of non-MIDI terminology going on in the Network

MIDI setting, so lets make a detour into Network land

Network Background

IP Address

Every Computer on a network (local or internet) has to have a unique address. This is the “IP Address” like “

234.112.3.4

”

The analogy would be the postal address of a building. You send a package with a valid address and the postal service will deliver it to the correct

recepient.

Network Port

If the mail carrier finds the right building to deliver the package, he could be confronted with a problem. The building is hundreds of floors high with

thousands of appartments. It looks like the package contains a CD, maybe a demo CD and maybe in the building is a record label which could be the

recepient of that package, but which floor. If the address would contain a departement number in addition to the street address, then a correct

delivery of that package would be guaranteed.

This is where the “

Port Number”

comes in. Every package sent over a network does contain a port number attached to the IP Address. Port Numbers

are assigned to specifc “

Services”

. If you type an IP Address in your browser to retrieve a specific website, it might look like

http://132.24.123.2

. What

you don’t see is that your browser actually adds the port number to the IP Address which then looks like this:

http://132.24.123.2:80

with the added

port number 80 separated by a colon. Port Number 80 stands for Webservice. The Browser knows that you requesting a webpage and adds the

necessary port number for you. Now if the request arrives at the computer with the IP Address 132.24.123.2, it know, based on the port number 80,

to direct the request to the web server and not the ftp server or any other Service on that computer. The Webserver gets the request and send the

correct website back to you.

For more information about ports and a list of port numbers and their assigned services look at

http://docs.info.apple.com/article.html?artnum=106439

Bonjour

The is an Apple technology formerly known as Rendezvous. It is based on the Zero-config network technology. Without getting into much detail, it

provides a functionality that lets network services on a LAN detect themself without any configuration:

As I mentioned above, all network services have an assigned network port (web=80, afp=548, iChat=5297, iTunes=3689). Bonjour enabled services

lets you assign an easy to remember ”Bonjour Name” to the more cryptic “

IP address:Port

” numbers. That Bonjour Name is visible to all computers on

the local network without any configuration. Example:

ITunes has a build in network share feature that uses Bonjour. If you go to iTunes preferences and turn on the music sharing, the only thing you have

to do is to enter a Bonjour Name (it’s called “Shared Name”) and your iTunes music cues will be visible to everybody on the LAN under your Bonjour

Name. You don’t have to configure any network stuff, you don’t have to know the network stuff of th other computers on your network, nor do the

other computer on your network have to know your network stuff in order to play your cues: Zero Config.

The same works for sharing pictures in iPhoto, sharing printers, seeing all available buddies for iChat or just accessing all availble computers through

file sharing.

Logic

Audio MIDI Setup

Driver

MIDI Interface

USB

Ethernet

Synth-1

Synth-2

Synth-3

Kbd

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