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Apple 8 manual Audio, The MIDI Connection

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The MIDI Connection

MIDI, as mentioned, is also a hardware “interface” which consists of a standardized set of connectors labeled IN, OUT, and THRU.

MIDI connectors consist of a round socket with five holes arranged in a semicircle. MIDI cables, used for connecting MIDI devices, have a matching plug that features five pins. Only three of the pins actually carry information.

MIDI only works in one direction on each connector. If you want your MIDI keyboard to send messages to, and receive messages from Logic, you must connect two cables.

Here’s the way your MIDI connections must be made, in order to work:

ÂMIDI OUT sockets must be connected to MIDI IN sockets on the receiving device.

ÂMIDI IN sockets must be connected to MIDI OUT sockets.

The MIDI THRU connector is not found on all MIDI devices. It simply mirrors the MIDI messages arriving at the MIDI IN socket, and allows you to “daisy-chain” more MIDI devices.

MIDI messages are sent from a MIDI controller such as a keyboard or sequencer—such as Logic—via the MIDI OUT connector. The device (MIDI synthesizer or sound module) receiving the MIDI messages at its MIDI IN socket, responds to these messages by playing sounds.

Important: Remember, MIDI does not send sounds. It sends instructions on how, what and when to play.

Audio

Audio, as a term, basically refers to any sound that you can hear. In the physical, as opposed to computer world, this is known as analog audio. When Logic records analog audio signals via an audio interface connected to, or installed in, your computer, the audio is converted into digital information. This information is stored as a digital audio file on your computer hard disk.

As with MIDI, the digital part sounds technical, but really isn’t. As discussed earlier, computers talk digitally, and need to deal with analog audio signals as digital information.

Important: Unlike MIDI, digital audio files are actually recordings of sounds, not an instruction language.

Appendix A Audio and MIDI Basics

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Apple 8 manual Audio, The MIDI Connection

Contents

Logic Express Getting StartedApple Inc  Apple Inc 2007 Apple Inc. All rights reservedFinder and Spotlight are trademarks of Apple Inc 1 Contents Using the InspectorUsing Instruments and Effects Using the LibraryUsing the Channel Strip Controls Using Key CommandsUsing Screensets Using Control SurfacesWelcome to Logic PrefaceKey Commands Conventions of This ManualMenu Functions Important Entries1Starting Your Project and Importing Media FilesThe basic Logic file or document type is the project To launch Logic, open and save a new projectThe empty project will open, and you will see the New Tracks dialog A Quick Note About Templates Getting to Know the Arrange WindowArrange window Toolbar Inspector Playhead Arrange channel strips Transport barCreating Tracks To create a few new tracks4 Click the Create button Insert slot Channel strip settingsInstrument slot Audio region Adding Media FilesMIDI region A list of Apple Loops is shown at the bottom of the Loop Browser To add other audio file types with the Browser To switch between List and Browser view Automatic Track Creation From Media Area Windows Apple Loop TypesTo create a track and import a loop in one step Using the Transport Bar Navigating Your ProjectTo create a track and import an audio file in one step, either To start and stop playbackUsing the Bar Ruler Setting the Playhead Position and Controlling PlaybackTo move the playhead to any position To start or stop playback at any project positionTo activate or deactivate the cycle, do one of the following Setting and Using the CycleTo move the cycle Undoing Operations To undo the last operation, command, or functionTo change the cycle length To reverse a number of operations, commands, or functions Selecting Tracks and RegionsSelecting Tracks To undo or redo an isolated stepTo select a region Selecting RegionsTo select several regions, do one of the following Page 2Recording Preparing to Record AudioTo set the project sample rate The Importance of the Sample RateTo set the basic project tempo, do one of the following To alter the metronome settings To set the count-in timeRecording Audio Regions To make a standard audio recordingRecording Takes To open a take folder, do one of the followingRecording an Instrument Part To select different takes when viewing an open take folderTo record an instrument region To correct the timing of your recording Chapter 2 RecordingPage 3Creating Your Arrangement Arrange area Bar rulerChoosing Tools About the Tools Effective Range of the ToolsPointer Muting and Soloing Tracks and Regions Muting RegionsPencil EraserSoloing Regions To mute several regions with the Mute toolTo solo a region with the Solo tool To solo several regions with the Solo toolEditing Regions Muting TracksSoloing Tracks To mute multiple tracksMoving Regions Changing the Length of RegionsTo move a region To move several selected regionsDividing Regions Cutting RegionsTo divide a region To cut a regionTo copy a region, do one of the following Copying RegionsTo paste a cut or copied region from the Clipboard Deleting Regions To delete a region, do one of the followingLooping Regions To loop a region, do one of the followingTo remove one or more loops To remove all loopsRegion Parameters Using the InspectorTo view or hide the Region Parameter box Using the Track/Channel Parameters The Track ParametersTo change a parameter value To undo any parameter changesThe Arrange Channel Strips Getting to Know the MIDI Editors 4Editing MIDI EventsTo open or close the Piano Roll, Score or Hyper Editor Chapter 4 Editing MIDI Events Resize pointerTo open or close the Event List To edit a note event position, do one of the followingTo create new note events in the Piano Roll Editor Editing and Creating EventsTo change the velocity of a note in the Piano Roll Editor To quantize one or more selected notes Quantization menu Quantize buttonPage 5 Using Instruments and Effects Channel Strip Settings menu Insert slot Send slot Instrument slotTo directly insert an instrument into an instrument channel strip To directly insert an effect into a channel strip Using the Library To directly insert an EQ into a channel stripTo replace an inserted plug-in effect or instrument To remove an inserted plug-in effect or instrumentTo quickly change loaded effect or instrument settings Using the Library to load complete channel strip settingsTo open or close the Library To edit plug-in parameters Editing Instruments and EffectsTo open the ES E plug-in window if it isn’t open 6Working With Audio Files Editing Audio FilesTo open the Sample Editor, do one of the following Chapter 6 Working With Audio FilesManaging Your Audio Files To export an audio file as an MP3 filePage Project 7Mixing and Exporting YourTo open or close the Mixer window To change the Mixer view Using the Channel Strip ControlsTo select a different track/channel To adjust the panning or balance of a channel strip To adjust the level of a channel stripChanging the Routing of Channel Strips To send a channel to a bus Automating Your Mix To choose an automation parameter To write volume automation to an automation track To edit the volume automation trackExporting Your Project To bounce your mixUsing Key Commands 8Speeding Up Your WorkflowUsing Screensets To set up a screensetTo set up more than nine screensets To recall a screenset, do one of the followingUsing Control Surfaces Page The MIDI Language MIDIAAudio and MIDI Basics Audio The MIDI ConnectionDigital and Analog Recording Digital Conversions About Bits and Sampling RatesBAudio and MIDI in Mac OS This chapter covers the audio and MIDI facilities of Mac OSCore Audio Sound Preference PaneCore MIDI Audio MIDI Setup AMSThe MIDI Page of AMS System COptimizing Your Computer AudioHardware MemoryBackup SoftwareTroubleshooting If Disaster Strikes Preferences and Parameter RAMFaulty Cables PCI ErrorsHard Disk Checking and File Structure Repair Viruses Re-installing or Updating the Operating SystemFormatting the Hard Disk Appendix C Optimizing Your Computer Audio System Page Glossary GlossaryGlossary beats per minute See bpm Broadcast Wave See Wave count-in Beats heard prior to the start of a recording or playback division value Adjustable value shown in notes for the grid used in displays and operations. Third number displayed in the Transport bar’s Position display. The division value is set in the Transport bar, below the time signature Finger tool Tool as used in the Piano Roll Editor, for example that looks like a hand with an extended index finger. This tool allows you to manipulate the length of events or perform other operations in other areas of the program input monitoring This function allows you to hear incoming audio, when audio tracks are playing, record-enabled, or recording. Simply click the Input Monitoring button on Arrange audio tracks to enable or disable input monitoring Library Window or tab in the Media area of the Arrange window used to handle all settings files for channel strips, effects, and instruments modulation wheel A MIDI controller found on most MIDI keyboards movie See video Parameter box Field on the left side of Logic windows or in the Inspector. It is used to adjust the parameters of the selected track, regions, events, or objects. Also see Inspector project settings The project settings are a collection of program settings that are specific to the current project. These are different to the global preferences that affect all Logic projects see Preferences window sample A digital recording of a sound at a particular instant in time Score Editor Logic editor that deals with standard musical notation. MIDI note events are represented as quavers, crotchets, minims, and so on. The Score Editor allows you to adjust and edit the layout of the score, and print it ES M track arming See record enable zoom control The control that appears at the bottom right of some windows, such as the Arrange. The zoom control slider allows you to navigate through the entire length of the currently displayed project. The lines on the left and right of the slider can be clicked to zoom in and out by a fixed percentage Index IndexIndex Index See also channel strip changing view 64 describedIndex See also preset Index