Apple 8 manual This chapter covers the audio and Midi facilities of Mac OS, Core Audio

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BAudio and MIDI in Mac OS X

B

Appendix

 

 

This chapter covers the audio and MIDI facilities of Mac OS X.

Your audio and MIDI hardware can be used by all “media-aware” applications in Mac OS X. This is achieved through the use of the operating system’s Core services.

Core Audio

All audio devices are accessed via Core Audio in Mac OS X. Core Audio is a flexible, high-performance, low-latency audio system. Logic is compatible with any audio hardware that is supported by a Core Audio driver.

Sound Preference Pane

The Sound preference pane is only required for switching the system’s Sound Effects (“Sosumi,”“Ping,” and others …).

If you are on the road with your portable Macintosh, and want to quickly try out a musical idea, you might want to use the internal microphone for recording. Select Apple () menu > System Preferences > Sound, and then Input. Switch between Line In and the Internal microphone in this pane.

Select Apple Menu > System Preferences > Sound, and then Output. This preference pane determines the default output device. This output device is used for system alert beeps, and for some audio applications, such as iTunes and iMovie. If you would prefer to output your system beeps (and playback of iTunes and iMovie audio) via external Core Audio hardware, select your device here.

Note: You can set an independent level for the alert beep. It is recommended that you reduce this to the minimum level, or even deactivate alert beeps entirely, when working on compositions.

You should always select the maximum possible volume level, in order to make full use of the entire dynamic range, when working with applications that use the default output.

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Contents Getting Started  Apple Inc Apple Inc. All rights reserved Contents Using Control Surfaces Using the Channel Strip ControlsUsing Key Commands Using ScreensetsWelcome to Logic Important Entries Key CommandsConventions of This Manual Menu FunctionsTo launch Logic, open and save a new project 1Starting Your Project Importing Media FilesStarting Your Project and Importing Media Files Getting to Know the Arrange Window Quick Note About TemplatesTo create a few new tracks Creating TracksYou should be looking at something like this Insert slot Channel strip settings Instrument slot Adding Media Files Column View button 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 Navigating Your Project Using the Transport BarTo start and stop playback To move the playhead to any position Using the Bar RulerTo start or stop playback at any project position To move the cycle To activate or deactivate the cycle, do one of the followingUndoing Operations To undo the last operation, command, or functionTo change the cycle length To undo or redo an isolated step To reverse a number of operations, commands, or functionsSelecting Tracks and Regions Selecting TracksTo select a region Selecting RegionsTo select several regions, do one of the following Page 2Recording To set the project sample rate Importance of the Sample RateTo set the basic project tempo, do one of the following To set the count-in time To alter the metronome settingsTo make a standard audio recording Recording Audio RegionsTo open a take folder, do one of the following Recording TakesRecording an Instrument Part To select different takes when viewing an open take folderTo record an instrument region To correct the timing of your recording Page 3Creating Your Arrangement Choosing Tools About the Tools Effective Range of the ToolsPointer Muting Regions Muting and Soloing Tracks and RegionsTo solo several regions with the Solo tool Soloing RegionsTo mute several regions with the Mute tool To solo a region with the Solo toolTo mute multiple tracks Editing RegionsMuting Tracks Soloing TracksTo move several selected regions Moving RegionsChanging the Length of Regions To move a regionTo cut a region Dividing RegionsCutting Regions To divide a regionTo copy a region, do one of the following Copying RegionsTo paste a cut or copied region from the Clipboard To delete a region, do one of the following Deleting RegionsTo remove all loops Looping RegionsTo loop a region, do one of the following To remove one or more loopsRegion Parameters Using the InspectorTo view or hide the Region Parameter box To undo any parameter changes Using the Track/Channel ParametersTrack Parameters To change a parameter valueArrange Channel Strips To open or close the Piano Roll, Score or Hyper Editor Getting to Know the Midi EditorsEditing Midi Events To edit a note event position, do one of the following To open or close the Event ListTo 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 Page Using Instruments and Effects Using Instruments and Effects To directly insert an effect into a channel strip To remove an inserted plug-in effect or instrument Using the LibraryTo directly insert an EQ into a channel strip To replace 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 Editing Audio Files 6Working With Audio FilesTo open the Sample Editor, do one of the following To export an audio file as an MP3 file Managing Your Audio FilesPage To open or close the Mixer window 7Mixing and Exporting Your ProjectTo 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 edit the volume automation track To write volume automation to an automation trackTo bounce your mix Exporting Your Project8Speeding Up Your Workflow Using Key CommandsTo recall a screenset, do one of the following Using ScreensetsTo set up a screenset To set up more than nine screensetsUsing Control Surfaces Page Midi Language AAudio and Midi BasicsMidi Connection AudioDigital and Analog Recording About Bits and Sampling Rates Digital ConversionsCore Audio This chapter covers the audio and Midi facilities of Mac OSSound Preference Pane Core Midi Audio Midi Setup AMSMidi Page of AMS Memory HardwareHard Drive Software BackupTroubleshooting Preferences and Parameter RAM If Disaster StrikesHard Disk Checking and File Structure Repair Viruses Appendix C Optimizing Your Computer Audio System Page Glossary Glossary Beats per minute See bpm Broadcast Wave See Wave Glossary Glossary Glossary Glossary Glossary Glossary Glossary 100 101 102 103 ES M 105 106 Index 108 109 110 111

8 specifications

The Apple iPhone 8, introduced in September 2017, marked a significant evolution in the company's smartphone lineup, bridging the design elements of the past with cutting-edge technology. The iPhone 8 brought several notable features and advancements that enhanced user experience and performance.

One of the most striking design elements of the iPhone 8 is its glass back, a departure from the aluminum unibody design of its predecessors. This transition not only provided a fresh aesthetic appeal but also enabled wireless charging, allowing users to power their devices conveniently without the need for cables. The iPhone 8 supports Qi wireless charging standards, making it compatible with a wide array of wireless charging pads.

Under the hood, the iPhone 8 is powered by Apple’s A11 Bionic chip, which features a six-core CPU. This powerful processor significantly improved the iPhone's speed and efficiency when compared to previous models. The A11 Bionic was designed for machine learning applications and includes a dedicated neural engine, allowing for better performance in tasks such as image recognition and augmented reality experiences.

The display of the iPhone 8 is a 4.7-inch Retina HD display, boasting True Tone technology, which adjusts the screen's white balance based on the ambient light. This feature not only enhances color accuracy but also improves comfort for users by reducing eye strain in various lighting conditions. With a resolution of 1334 x 750 pixels, the display delivers sharp and vibrant visuals.

Camera capabilities on the iPhone 8 also received significant upgrades. The rear 12-megapixel camera features optical image stabilization, providing clearer photos and smoother video recording, even in low light conditions. The introduction of new color filters and a larger sensor allowed for improved photo quality. The front-facing 7-megapixel camera supports 1080p HD video recording and features advanced portrait mode, offering users new ways to create professional-quality selfies.

Another important aspect of the iPhone 8 is its robust security features. The device continued to use Touch ID for biometric authentication, ensuring that users' data remained secure. Additionally, the iPhone 8 was water and dust resistant, rated IP67, which added an extra layer of durability.

In summary, the Apple iPhone 8 successfully combined innovative technology with timeless design. Its wireless charging, powerful A11 Bionic chip, enhanced camera features, and sturdy build quality made it a compelling choice for consumers looking to experience the best of Apple’s engineering prowess.
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