Ableton Live Intro Manual de instrucciones descargar pdf (Pagina 362)

CHAPTER 29. COMPUTER AUDIO RESOURCES AND STRATEGIES 360

29.1.2 CPU Load from Tracks and Devices

Generally, every track and device being used in Live incurs some amount of CPU load.

However, Live is smart and avoids wasting CPU cycles on tracks and devices that do not

contribute anything useful.

For example, dragging devices into a Live Set that is not running does not signicantly

increase the CPU load. The load increases only as you start playing clips or feed audio into

the effects. When there is no incoming audio, the effects are deactivated until they are

needed again. (If the effect produces a tail, like reverbs and delays, deactivation occurs

only after all calculations are complete.)

While this scheme is very effective at reducing the average CPU load of a Live Set, it cannot

reduce the peak load. To make sure your Live Set plays back continuously, even under

the most intense conditions, play back a clip in every track simultaneously, with all devices

enabled.

29.1.3 Track Freeze

Live's Freeze Track command can greatly help in managing the CPU load incurred by devices

and clip settings. When you select a track and execute the Freeze Track command, Live

will create a sample le for each Session clip in the track, plus one for the Arrangement.

Thereafter, clips in the track will simply play back their freeze les rather than repeatedly

calculating processor-intensive device and clip settings in real time. The Freeze Track

command is available from Live's Edit menu and from the

(PC) /

Ctrl

(Mac) context

menu of tracks and clips.

Once any processing demands have been addressed (or you have upgraded your machine!),

you can always select a frozen track and choose Unfreeze Track from the Edit menu to change

device or clip settings. On slower machines, you can unfreeze processor-intensive tracks

one at a time to make edits, freezing them again when you are done.

Many editing functions remain available to tracks that are frozen. Launching clips can still be

done freely, and mixer controls such as volume, pan and the sends are still available. Other

possibilities include:

Edit, cut, copy, paste, duplicate and trim clips;

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Ableton Live Intro Manual de instrucciones Pagina 362