334
:
5.
Set the Timing Synthesis parameters as described in the table above.
6.
Click OK.
The generated events are automatically placed on the Clipboard. You can paste them to a new track, or
use them directly in another command (such as Groove Quantize).
Removing DC Offset
Some models of audio hardware produce a DC offset while recording, which is caused by electrical
mismatches between the audio hardware and the input device or instrument. Although imperceptible,
DC offset may cause problems in further stages of sound processing.
Note
: An easy way to spot DC offset is to zoom in to a silent section of your sound file. If the silent
waveform matches the centerline in the waveform display, your file does not contain DC offset.
To Remove DC Offset From Existing Audio
1.
Select the audio data and choose
Process-Audio-Remove DC Offset
. This launches the Remove
DC Offset dialog.
2.
Choose from the following options, and click OK:
•
DC Offset Threshold (dB)—you can set a minimum dB threshold. If the analyzed DC offset is
below this value, no removal takes place.
•
Analyze Left Channel (dB) and Right Channel (dB)—this field displays the DC offset
separately for the left and right channels. Press the
Audition
button to update the display.
•
Compute DC Offset from first 5 seconds only—to speed processing, select the Compute DC
offset from first 5 seconds only checkbox. Only the first five seconds of a sound file will be
analyzed when measuring the DC offset. The only time that five seconds is not sufficient is if
a long fade-in or mute has been applied at the beginning of the file.
To Remove DC Offset During Recording
1.
Use the
Process-Audio-Remove DC Offset
command to open the Remove DC Offset dialog.
2.
In the DC Offset Threshold (dB) field, set a minimum dB threshold, and click OK to close the
dialog. If the analyzed DC offset is below this value, no removal takes place.
3.
Open the Audio Options dialog (
Options-Audio
command), and on the Advanced tab, enable the
Remove DC Offset During Recording checkbox, and click OK.
This option filters out DC Offset according to the threshold value that you set in the Remove DC Offset
dialog.
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