Ableton Live - 9.0 Bedienungsanleitung PDF herunterladen (Seite 129)

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129 Audio Clips, Tempo, and Warping

Quantizing Audio Samples.

Using the options presented here, you can select either the current grid size or a speciﬁc meter

value for quantization. You can also quantize without that “quantized“ feel by adjusting the

Amount control, which will move Warp Markers by a percentage of the set quantization value.

9.3 Adjusting for Good Stretching Quality

Live offers a number of time-stretching modes to accommodate all sorts of audio material. Each

clip’s time-stretching mode and associated parameters are set in the Clip View’s Sample Box.

The warp modes are different varieties of granular resynthesis techniques. Granular resynthesis

achieves time compression and expansion by repeating and skipping over parts of the sample

(the “grains“). The warp modes differ in the selection of grains, as well as in the details of over-

lapping and crossfading between grains.

Let’s investigate which warp modes work best for different types of signals and how to adjust the

warping controls for “clean“ stretching. It’s also fun to “misuse“ these controls to achieve interest-

ing artifacts instead of accurate stretching.

9.3.1 Beats Mode

Beats Mode works best for material where rhythm is dominant (e.g., drum loops as well as most

pieces of electronic dance music). The granulation process is optimized to preserve transients in

the audio material.

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