Fission enables you to losslessly adjust the volume of audio files in two ways, with manual Gain Adjustment as well as the Normalize function.
Gain Adjustment
Run-Through
Let's run through the steps to adjust the volume of a selection.
Step 1) Open your audio file and enter Select mode.
Step 2) Select the audio you wish to adjust by clicking and dragging in the waveform.
Step 3) Once you have the audio selected, click the Gain Adjustment button, then drag the slider up or down to adjust the volume level.
Step 4) Save the audio out by clicking Save Audio. You're all set!
Normalize
Run-Through
Let's run through the steps to normalize a selection.
Step 1) Open your audio file and enter Select mode.
Step 2) Select the audio you wish to normalize by clicking and dragging in the waveform.
Step 3) Once you have the audio selected, click the Normalize button in the toolbar or choosing Normalize Selection from the Clip menu.
Step 4) Save the audio out by clicking Save Audio. You're all set!