Steinberg WAVELAB 8.5 RETAIL SOFTWARE 45370 数据表

This chapter describes various operations that are related to looping. Looping is 
used to simulate the infinite or at least very long sustain of many instrumental 
sounds. WaveLab has tools for creating smooth loops, even for the most complex 
types of sounds.

Looping a sound allows you to repeat a section of the sample indefinitely in order 
to create a sustain of unlimited length. Instrumental sounds in samplers rely on 
looping. An example of this would be an organ sound.

Without looping, you can only play audio as long as the original recording. With 
looping, audio can be of any length. In WaveLab, loops are defined by loop markers. 
Loop markers are added, moved, and edited such as any other type of marker.

To ensure that you find a good loop point note the following:

•

There are only two types of loops: very long and very short loops. Loops of 
intermediate lengths usually do not provide good results.

•

A long loop sounds the most natural and should be used whenever possible. 
However, if the sound does not have a stable section in the middle (an even 
sustain part), it might be hard to find a good long loop. For example, a piano 
note which decays continuously is hard to loop since the start point of the 
loop is louder than the end point. A flute is much simpler, because the sound 
in the sustain section is very stable.

•

Very short loops that cover only a few cycles or periods can almost always be 
found but may sound static and unnatural.

•

A loop should start shortly after the attack portion, that is, when the sound has 
stabilized to a sustaining note.

•

If you set up a long loop, it should end as late as possible but before the sound 
starts decaying to silence.

•

Short loops are difficult to position within the sound. Try to position them near 
the end.

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More information about looping in general, and the exact capabilities of your 
sampler in particular can be found in the manual of the sampler.