Apple Logic Pro 7.2 Especificaciones descargar pdf (Pagina 57)

8 Using Apple Loops

The support of Apple Loops in Logic Pro brings a range of

flexible options to your music-making palette.

This chapter covers their use in Logic Pro, information on Apple Loop creation and

further material that will aid you in making the most of the facilities available.

Logic Pro ships with a number of Apple Loops, as does GarageBand. Apple Loops are

AIFF format audio files that contain PCM audio data. Apple Loops can be used in any

audio application that supports AIFF files. In comparison with “standard” audio loops,

Apple Loops have a significant advantage: they can contain additional information

that Logic Pro uses for a variety of purposes, including automatic time and pitch

shifting, indexing and searching.

Two important data types that Apple Loops may include are; metadata tags and

transient markers. Logic Pro uses metadata tags to help locate files when using the

Search features of the Loop Browser. Transient markers indicate where beats occur in

the file. Logic Pro uses this information, in conjunction with the metadata tags, to

match the file’s tempo and key to the song tempo and key, thus ensuring the best

possible playback quality.

Green and Blue Apple Loops

There are two types of Apple Loops: those featuring a blue sound wave icon and

others with a green note icon (these icons are shown in the Loop Browser).

Both contain uncompressed PCM audio data, and both may contain additional

information for time stretching, transposition, indexing and searching.

Green and blue Apple

Loops in the Loop

Browser

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Apple Logic Pro 7.2 Especificaciones Pagina 57