To edit the volume of an audio file, proceed as follows:
1.
If you want to raise or lower the volume of the highlighted section of the audio file:
1.
Click the Volume > Volume Change entry in the menu bar.
à
The Volume Change window is opened.
2.
Move the Volume Change slider to the desired position.
à
The set dB value is displayed in the display panel.
3.
Click the OK button.

 

 

 

Raising the volume raises all frequencies of the audio file by the specified dB value. Lowering the volume reduces all frequencies by the specified dB value.

 

 
2.
If you want to mute the highlighted section of the audio file, click the Volume > Mute entry in the menu bar.
à
The change in volume in the highlighted section is displayed graphically in the file display.
3.
If you want to normalize the frequencies of the highlighted section of the audio file to a particular dB value: 
1.
Click the Volume > Normalize entry in the menu bar.
à
The Normalize window is opened.
2.
Move the Normalize to slider to the desired position.
à
The set dB value is displayed in the display panel.
3.
Click the OK button.
4.
If you want to fade in or fade out the volume of the highlighted section of the audio file, click the Volume > Fade In or Fade Out entry in the menu bar and choose the desired method.
à
The change in volume in the highlighted section is displayed graphically in the file display.
è
You have edited the volume of the audio file.
Frequency
The frequency denotes the oscillations per second of an electrical or magnetic field. With audio files this means that the frequency increases with rising pitch. The unit is Hertz (Hz). The highest magnitude of oscillation is called the amplitude.

Normalization
Normalizing in audio technology is the process whereby analog and/or digital audio data is raised to a uniform volume level.


Editing Audio File Volume