Adobe AUDITION 1.5 User Manual

Page 58

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CHAPTER 2

50

Setting up Adobe Audition

Display options

The Display tab in the Settings dialog box provides options for adjusting Adobe Audition’s
Spectral View and Waveform View modes.

Windowing Function

Determines the method Adobe Audition uses to segment the

spectral data before it displays it. The segments (windows) are listed in order from the
narrowest frequency band/most noise to the widest frequency band/least noise.
Blackmann or Blackmann-Harris are good choices.

Resolution

Specifies the number of vertical bands used in drawing frequencies. Keep in

mind that the larger this number, the longer it will take for Adobe Audition to render the
spectral display. Performance will vary based on the speed of your computer.

Window Width

Specifies the width of the window (or frame size) used in plotting the

spectral data, where 100% is a frame size of the FFT (Fast Fourier Transform)

size.

Window Width basically lets you increase time resolution at the expense of some
frequency resolution. So the display will become more accurate along the timeline (left
and right) and less accurate along the frequency scale (up and down) as the window width
decreases. The default setting is 75%, but you should lower the value (50 to 75% works
best) if you want to increase the resolution horizontally—for example, to find out exactly
where a certain frequency starts.

Plot Style

Specifies a style for plotting frequencies:

Logarithmic Energy Plot: In this mode, colors change with the decibel value of the
energy at any particular time and frequency. In this mode, you can see more details in
the very quiet ranges, especially if the Range is quite high (above 150 dB). Use the Range
value to adjust the sensitivity in plotting frequencies.

Linear Energy Plot: When selected, colors are chosen based on percentage of maximum
amplitude instead of decibel amplitude. Liner Energy Plot can be useful for viewing the
general overview of a signal without getting bogged down by detail at much quieter
levels. You can adjust the Scaling factor to highlight audio of different intensities.

Show Cue And Range Lines

Displays cue marker and range lines in the waveform display.

Cue marker and range entries in the Cue List appear with vertical dotted lines overlaying
the audio, connecting the arrows from the top to the bottom of the display.

Show Grid Lines

Displays grid lines in the waveform display. The grid lines mark off time

on the horizontal x-axis and amplitude on the vertical y-axis.

ug.book Page 50 Tuesday, March 16, 2004 1:29 PM

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