Adobe 65009626 User Guide - Page 49

Create a loop, Smooth out loop transitions, Preview only loop transitions, Adjust beat detection

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USING SOUNDBOOTH CS4 45 Editing and repairing audio files See also "Select time ranges" on page 36 "Snap to markers, beats, frames, or the timeline ruler" on page 37 "Choosing an audio file format" on page 73 Create a loop 1 In the Tasks panel, click Create Loop. In the transport controls, Soundbooth automatically enables the Loop Playback option . 2 Press the spacebar to start playback. 3 In the Editor panel, select a time range for the loop. 4 In the Tasks panel, fine-tune the Loop In Point, Out Point, and Duration settings. Click the Previous Beat and Next Beat arrows to quickly adjust the selected range. Click the zoom icons to magnify related audio. 5 Select from the following options: Lock Duration Restricts the loop to the currently specified duration. If you need a loop of precise length, select this option. Then manually adjust the in point and out point, or click the Previous Beat and Next Beat arrows to automatically jump from one potential loop to the next. Show Beat Indicators Displays beats in the Editor panel. (If beats are densely spaced, an orange gradient appears at the top of the waveform. To see individual beats, zoom in.) 6 Click Save Loop As to save to a new file. Smooth out loop transitions By default, Soundbooth transitions from loop out points to in points without cross-fading. That default works well for percussive sounds, but more sustained sounds benefit from a smooth cross-fade. 1 In the Create Loop task, expand the Settings section. 2 Select Auto-Smooth Loop Point. Preview only loop transitions By default, Soundbooth previews the entire loop. To precisely fine-tune the transition from out point to in point, preview the transition instead. 1 In the Create Loop task, expand the Settings section. 2 Select Play Transition Only. Adjust beat detection settings 1 To display beats in the Editor panel, choose View > Beats. 2 To fine-tune beat detection, choose Tasks > Create Loop. Then, in the Tasks panel, expand the Settings section and adjust the following options: Minimum and Maximum Frequency Specify the main frequency range that beats occur in. The fundamental frequencies for bass drum, for example, range from 40 to 80 Hz. By contrast, snare drum emphasizes frequencies from 1,000 to 2,000 Hz. Sensitivity Detects main beats at low settings, and adds intermediate beats at high settings. Updated 15 July 2009

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45
USING SOUNDBOOTH CS4
Editing and repairing audio files
See also
“
Select time ranges
” on page
36
“
Snap to markers, beats, frames, or the timeline ruler
” on page
37
“
Choosing an audio file format
” on page
73
Create a loop
1
In the Tasks panel, click Create Loop.
In the transport controls, Soundbooth automatically enables the Loop Playback option
.
2
Press the spacebar to start playback.
3
In the Editor panel, select a time range for the loop.
4
In the Tasks panel, fine-tune the Loop In Point, Out Point, and Duration settings.
Click the Previous Beat and Next Beat arrows to quickly adjust the selected range. Click the zoom icons to magnify
related audio.
5
Select from the following options:
Lock Duration
Restricts the loop to the currently specified duration. If you need a loop of precise length, select this
option. Then manually adjust the in point and out point, or click the Previous Beat and Next Beat arrows to
automatically jump from one potential loop to the next.
Show Beat Indicators
Displays beats in the Editor panel. (If beats are densely spaced, an orange gradient appears at
the top of the waveform. To see individual beats, zoom in.)
6
Click Save Loop As to save to a new file.
Smooth out loop transitions
By default, Soundbooth transitions from loop out points to in points without cross-fading. That default works well for
percussive sounds, but more sustained sounds benefit from a smooth cross-fade.
1
In the Create Loop task, expand the Settings section.
2
Select Auto-Smooth Loop Point.
Preview only loop transitions
By default, Soundbooth previews the entire loop. To precisely fine-tune the transition from out point to in point,
preview the transition instead.
1
In the Create Loop task, expand the Settings section.
2
Select Play Transition Only.
Adjust beat detection settings
1
To display beats in the Editor panel, choose View > Beats.
2
To fine-tune beat detection, choose Tasks > Create Loop. Then, in the Tasks panel, expand the Settings section and
adjust the following options:
Minimum and Maximum Frequency
Specify the main frequency range that beats occur in. The fundamental
frequencies for bass drum, for example, range from 40 to 80 Hz. By contrast, snare drum emphasizes frequencies
from 1,000 to 2,000 Hz.
Sensitivity
Detects main beats at low settings, and adds intermediate beats at high settings.
Updated 15 July 2009