User Manual

WAVELAB
28 – 676 Using samplers and creating loops
Setting up
1. While still at the “Loop points” tab (in the Crossfade Looper dialog), try to
create as good a loop as you can.
2. Click on the Crossfade tab.
3. Make sure the Crossfade check box is activated.
There is a corresponding check box on the Post-Crossfade tab. This lets you choose if reg-
ular crossfading and/or post-crossfading will be performed when you click Apply later.
The Crossfade tab with crossfading activated.
4. Decide on a length for the crossfade either by dragging the length handle
or by adjusting the Length value below the graph.
The length is used to adjust the amount of the audio file that will be processed. This area is
always located just before the end of the loop, but the Length value adjusts how far towards
the start of the loop it stretches. As you can see, an equally large area before the loop start
is used as basis for the processing. However, this area is not processed, just analysed.
Generally you will want the crossfade to be as short as it can be, with an
acceptable result:
• Using a long crossfade will be a better guarantee that the loop will be smooth. How-
ever, more of the waveform will be processed and hence changed in character.
• Using a short crossfade will ensure the sound is affected as little as possible.
However, the loop might then not be as smooth as otherwise.
5. Decide on a crossfade shape, by dragging the shape handle or by adjust-
ing the shape value.
The considerations for this are the same as when creating other crossfades, see “Cross-
fade” on page 192. 0% means that the sound level will be equal in the middle of the cross-
fade, whereas 100% means that the energy will be equal in the middle of the crossfade.
Use low values for “simple” sounds and high values for “complex” sounds.