Once you enable the envelope, you can preview the result by opening the source editor (next figure). If you are unhappy with the precision and/or number of points, you can change the value of the sensitivity slider in the envelope tracking group box (see Figure 29.14, “HDR tab in Property Editor”). You can work with a group of sounds by enabling the envelope and setting the sensitivity on a higher-level sound structure, an actor-mixer for example. Note that the effect of the sensitivity is dependent on the original audio data, and may therefore be different for different variations of similar sounds. You can also edit the envelope manually for each sound; set the sensitivity control so that you obtain a curve that is close to the desired result, and move, remove or add new points.
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