Envelope active, Region looping, Hdr 24/96 – MACKIE HDR24/96 User Manual

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HDR 24/96

change in amplitude within the fade region. The amplitude of the waveform follows the fade
curve. By default all Regions begin and end with a 10 millisecond fade

When the Hand tool is placed on the inside boundary of a fade region and above the
centerline of the waveform display, the “hand” changes to a “fade” tool. This fade tool,
which looks like a quarter-circle, is used to drag the edge of the fade region to extend or
reduce the fade length. Fade length can also be adjusted “by the numbers” by opening the
Region Editor window and editing the Fade time fields. Since 1 frame is about 30
milliseconds, if you're working in SMPTE time, switch to milliseconds to see the fades time.

Obviously a fade time cannot be longer than the total region length, although a fade can
extend over the full length of the region. Fade In and Fade Out interact, however, and one
will push the other over to make room if they begin to overlap.

There are three selectable fade curves, which determine the rate of change of volume over the
fade time - slow, linear and fast. Your ears will tell you which one works best for the
application. Adjusting fades is best done interactively – listen, adjust, listen again. You may
find it convenient to set up a loop around the fade region so that you can fine tune while
listening.

Envelope Active
The ACTIVE button under the Envelope label enables audio level adjustments within the
currently selected region. When the Envelope view (Options | View Envelopes) and
Envelopes ACTIVE are both turned on, the volume level within the region is shown by a
yellow line in the region, and the audio volume heard will follow that envelope. If the
ACTIVE button is off, volume changes will not be heard.

The default level is unity gain, indicated by a horizontal line at approximately 75% of the full
region height. Although there’s no calibration scale for the volume envelope, clicking on the
volume envelope line with the Envelope Node tool opens up a readout window, showing the
gain at that point. Full scale represents a gain of 6 dB, while the bottom of the region is full
off.

IMPORTANT: Even though View Envelopes is turned on, the volume envelope line will
only be displayed if the envelope has been made ACTIVE in the Region Editor window or
the Options pull-down menu. Conversely, if the volume envelope is ACTIVE in the Region
Editor and View Envelopes is not turned on, the envelope will not be visible in the region,
however the volume will follow the (invisible) envelope. Hence, it’s possible to have volume
changes occurring within a region that you don’t see on screen. If you work with volume
envelopes, it’s best to leave View Envelopes on.

Region Looping
Music is full of repeating elements. Musical phrases, measures, bass patterns, drum rhythms,
and well… most everything in music repeats. Region Looping is a way to repeat something
(a region) without copying or pasting it.

The looped Region will sound like it has been pasted onto a track repeatedly butted end-to-
end with itself. However, unlike multiple pasting, looping a Region extends its playback
length by repeating the audio within the region and without creating a multitude of discrete
copies on the track.

Region Loop mode is toggled either by clicking on the LOOP button in
the Region Editor window or by right-clicking in the Region and selecting
Loop from the pop-up menu.

HDR 24/96

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