ENSONIQ ASR-10 Bedienerhandbuch PDF herunterladen (Seite 166)

Section 7 — Sampling/Signal Source Concepts

Looping 155

Adjusting Loop Position

Before truncating the WaveSample, you may decide that the loop occurs too early in the sound

(before all the attack transients have died down) or too late (wasting memory). The ASR-10 has a

way to move the whole loop (start and end) around while keeping its relative length intact.

• While still on the EDIT/Wave page (press Edit, then Wave if you are not) scroll until the

display shows LOOPPOS= ## (##). This is the loop position parameter. The number shown

here is that of the loop start, but adjusting this parameter will move both loop start and loop

end together, leaving the length (and thus the pitch) of the loop unaffected.

• Underline the loop position coarse adjust (the number in parentheses) and try moving the loop

position around while listening to the sound. Find the place where the loop works most

naturally with the rest of the sound. Note that you might have to readjust the loop end

slightly after moving the loop position, particularly if the sound has pitch variations in it.

• Again, once you’ve found a loop you like, move the SAMPLE END back to the loop end, and

truncate the WaveSample.

Long Loops

If a single-cycle loop doesn’t work for a particular sound, try a longer loop. The idea is the same

— a segment of the sound is repeated again and again, but the long loop encompasses many

cycles of the sound. Long loops retain the tonal complexity and sense of “movement” in the

original sound, and will therefore work better for sounds like vocals, strings, flutes, stacked synth

sounds, etc.

Data after the Loop End can be

truncated to conserve memory

Once it reaches the Loop End the wave returns instantly to the Loop Start

and plays the loop segment over and over until the key is released

Loop Start Loop EndSample Start Sample End

There is no one simple procedure for getting a perfect long loop every time — it all depends on

the sound. Some sounds are easy to loop; other sounds seem to defy all attempts to find a good

loop. Especially difficult to loop are those sounds whose timbre and volume change radically

over time. You’ll find, however, that the ASR-10 provides a wide variety of tools for getting the

best possible results with even the most difficult sounds. By following the guidelines below (and

not being afraid to experiment) you should be able to get an acceptable loop on virtually any

sample.

• The AUTO-LOOP FINDING parameter should be on when looking for a long loop.

• Sample a sound, play the root key, and set the loop mode to MODE=LOOP FORWARD.

• Scroll to the LOOP START parameter, underlining the coarse adjust (in parentheses), and

move the loop start forward past the initial attack of the sound. Try starting with a value

somewhere between 15 and 40 percent. Hold down a key and listen to the loop.

• Scroll to the LOOP END parameter, again underlining the coarse adjust. While holding down

a key, use the Data Entry Slider to move the loop end back towards the loop start. The closer

to the loop start it gets (that is, the shorter the loop) the more noticeable the loop will sound.

The idea is to find the shortest possible loop (to conserve memory) which doesn’t sound

obviously “looped.”

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