842
Editing audio
Advanced audio processing
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.
To remove DC offset from existing audio
1.
Select the audio data and choose
Process > Apply Effect > Remove DC Offset
. This launches
the
Remove DC Offset
dialog box.
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 check box. 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.
Go to
Process > Apply Effect > Remove DC Offset
to open the
Remove DC Offset
dialog
box.
2.
In the
DC Offset Threshold (dB)
field, set a minimum dB threshold, and click
OK
to close the
dialog box. If the analyzed DC offset is below this value, no removal takes place.
3.
Go to
Edit > Preferences > Audio - Playback and Recording
, select the
Remove DC Offset
During Recording
check box, and click
OK
.
This option filters out DC Offset according to the threshold value that you set in the
Remove DC
Offset
dialog box.
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.
Содержание sonar x3
Страница 1: ...SONAR X3 Reference Guide...
Страница 4: ...4 Getting started...
Страница 112: ...112 Tutorial 1 Creating playing and saving projects Saving project files...
Страница 124: ...124 Tutorial 3 Recording vocals and musical instruments...
Страница 132: ...132 Tutorial 4 Playing and recording software instruments...
Страница 142: ...142 Tutorial 5 Working with music notation...
Страница 150: ...150 Tutorial 6 Editing your music...
Страница 160: ...160 Tutorial 7 Mixing and adding effects...
Страница 170: ...170 Tutorial 8 Working with video Exporting your video...
Страница 570: ...570 Control Bar overview...
Страница 696: ...696 AudioSnap Producer and Studio only Algorithms and rendering...
Страница 720: ...720 Working with loops and Groove Clips Importing Project5 patterns...
Страница 820: ...820 Drum maps and the Drum Grid pane The Drum Grid pane...
Страница 848: ...848 Editing audio Audio effects audio plug ins...
Страница 878: ...878 Software instruments Stand alone synths...
Страница 1042: ...1042 ProChannel Producer and Studio only...
Страница 1088: ...1088 Sharing your songs on SoundCloud Troubleshooting...
Страница 1140: ...1140 Automation Recording automation data from an external controller...
Страница 1178: ...1178 Multi touch...
Страница 1228: ...1228 Notation and lyrics Working with lyrics...
Страница 1282: ...1282 Synchronizing your gear MIDI Machine Control MMC...
Страница 1358: ...1358 External devices Working with StudioWare...
Страница 1362: ...1362 Using CAL Sample CAL files...
Страница 1386: ...1386 Troubleshooting Known issues...
Страница 1394: ...1394 Hardware setup Set up to record digital audio...
Страница 1400: ...1400 MIDI files...
Страница 1422: ...1422 Initialization files Initialization file format...
Страница 1463: ...1463 Misc enhancements New features in SONAR X3...
Страница 1470: ...1470 Comparison...
Страница 1518: ...1518 Included plug ins Instruments...
Страница 1532: ...1532 Cyclone Using Cyclone...
Страница 1694: ...1694 Beginner s guide to Cakewalk software Audio hardware sound cards and drivers...
Страница 1854: ...1854 Preferences dialog Customization Nudge Figure 518 The Nudge section...
Страница 1856: ...1856 Preferences dialog Customization Snap to Grid Figure 519 The Snap to Grid section...
Страница 1920: ...1920 Snap Scale Settings dialog...
Страница 2042: ...2042 View reference Surround panner...