Adobe CAPTIVATE 5 Help Manual page 146

Last updated 4/22/2010
Select the portion of the audio file where you want to insert silence, and click Insert Silence. Choose
Insert Silence
from one of the following options:
• Replaces the selected portion of the audio with silence.
Current Selection
•
Adds silence to the beginning of the audio file.
Start Of Audio
•
Adds silence to the end of the audio file.
End Of Audio
• This option is available only when you have not selected a portion of the audio file. The
Playhead Position
silence is inserted at the playhead position. Use this option when you want to insert an extremely brief period of
silence.
Click to increase or decrease the sound level of the audio file. There is also an option to fine-tune
Adjust Volume
quieter portions of the audio file.
• Select this option to have Adobe Captivate adjust the sound volume automatically. Normalizing
Normalize
audio helps keep the sound level consistent between slides.
• Select this option to amplify quiet sections of the audio to help compensate for variations in audio
Dynamics
volume.
• Specifies the maximum amplification that will be used. The default setting of 2.0 sets the quietest sections
Ratio
of the audio to be amplified by a factor of 2. A higher setting can improve projects with large differences between
quiet and loud sections, but can also amplify background noise.
• Controls the amplification of background noise. Anything quieter than the noise threshold is not
Threshold
amplified. If background noise is amplified too much, setting a higher noise threshold may help solve the problem.
Note that the Dynamics option does not work well with high noise levels.
Use the slider to enlarge or shrink the waveform.
Zoom In and Zoom Out
Click to set various options such as recording device, audio quality level, and recording device calibration.
Settings
Export the audio file as a WAV or mp3. You can later use these files for podcasting. Podcasting refers to
Podcast
distributing files over the Internet through web feeds to portable media players, and computers.
Displays the audio file graphically. The waveform is a visual representation of the audio file.
Waveform
Click to begin recording audio. (To record, you need a microphone.)
Record Audio
Click to stop playing the audio file.
Stop
Click to play the audio file.
Play
Displays the status of the audio file as playing, ready, and so on.
Status
Displays the selected location, in seconds, within the audio file. For example, if you are working with an
Playhead
audio file that is 10 seconds long and you click in the middle of the file, this playhead area displays approximately
00.05.00, or 5 seconds.
Displays the total amount of time it takes for the audio file to play.
Duration
Displays the total amount of time selected. For example, suppose you have an audio file that is 20 seconds
Selected
long. If you click at the beginning of the file and drag to the middle, you will have selected approximately a 10-
second span of the file.
Displays the scale at which the waveform is displayed. (To change the scale, click Zoom In or Zoom Out.)
Scale
Displays the Select Audio From Library dialog box, where you can browse to a new audio file and import it.
Library
Click Select Audio From Library to import an audio file from the project's Library.
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Audio