Apple Logic Pro 7.2 Especificaciones descargar pdf (Pagina 71)

Chapter 8 Using Apple Loops 71

Provided that the audio file matches the song tempo, and that its length fits a whole

number of beats (or you entered the correct length in the “Open Audio File in Apple

Loops Utility” dialog), the Apple Loops Utility sets the correct default value for the

Number of Beats field.

Note: If you open an audio file directly in the Apple Loops Utility this information is not

available. In this situation, the Apple Loops Utility uses different assumptions to set the

Number of Beats value. Please consult the Apple Loops Utility manual for more

information on this.

The File Type tag allows you to set the file type, which can be Non-Looping or Looped.

Looping files are matched to the song tempo and, if the Key tag is set to a value other

than None, are matched to the song key. Non-looping files (or one-shots) are not

matched to the song key or tempo. If you import them into Logic, they behave like

“normal” audio files. This is useful if you want to add discrete, non-musical sounds (such

as sound effects) to the loop library, which should not be altered by the tempo or key

properties. Non-looping audio files still contain metadata tags, allowing easy searching

and categorization in the Loop Browser.

In general, you will tag files featuring rhythmic patterns or musical passages intended

for music composition and arranging as “looping”, allowing Logic Pro to match them to

the song tempo and (for musical, pitched loops) the song key. Files with non-rhythmic

elements, such as sound effects and voice-overs, intended for occasional use on

soundtracks, should usually be tagged as non-looped.

The Key tag controls how Logic Pro matches the key of a loop to the song. When you

import the loop into Logic Pro, it matches the key of the loop to the song by

transposing the loop the required number of semitones. The loop is either transposed

up or down, in whichever direction requires the smaller number of semitone steps.

As an example: If the song key is C, and the given loop’s Key tag is D, Logic Pro

transposes the loop up by two semitones (instead of transposing it down by ten

semitones). Both would match the loop to the song key.

The playback transposition for Apple Loops is controlled by the root note of chords in

the Chord track. These root notes determine the global playback transposition—

relative to the current key signature—shown in the Signature track. If no chords are

available in the Chord track, the global playback key for Apple Loops is determined by

the very first key signature in the Signature track (default: C major).

No distinction is made between major and minor keys for these global transposition

functions; in fact, only the root of the initial key signature is relevant for playback of

Apple Loops and MIDI Regions.

By default, Apple Loops Utility sets the Key tag to the information Logic Pro provides in

the Signature track.

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Apple Logic Pro 7.2 Especificaciones Pagina 71