Contents - Index

Gain Adjust

To adjust the gain of a .WAV file, you must first select a time segment.  This is done from either the Time Series, Spectrogram, or 3-D Surface view.  Click the selection arrow located on the view toolbar and then click and drag the mouse across the desired time segment.  This segment will then be displayed in inverse video.  Once the time segment has been selected, select the <Edit><Gain Adjust> menu command.  You will then be prompted enter the the amount of gain in decibels (dB) to add or subtract.  Click the OK button to perform the adjustment.  

DC Offset

To adjust the DC Offset of a .WAV file, you must first select a time segment.  This is done from either the Time Series, Spectrogram, or 3-D Surface view.  Click the selection arrow located on the view toolbar and then click and drag the mouse across the desired time segment.  This segment will then be displayed in inverse video.  Once the time segment has been selected, select the <Edit><DC Offset> menu command.  You will then be prompted enter the the amount of DC Offset to add or subtract.  The offset is entered in units according to the current calibration settings.  Click the OK button to perform the DC Offset.  


Notes:
The <Edit><Undo Edit> menu command will restore the segment to its previous value.

See also:  Working with audio files, toolbar