Click OK, then amplify the right channel to your chosen New Peak Amplitude. Click on 'Left' in the TrackControl Panel of the upper track to select it, then use Effect > Amplify and choose your required New Peak Amplitude. To adjust each channel to its own peak volume, click the downward-pointing arrow in the Track Control Panel to open the Audio Track Dropdown Menu then choose 'Split StereoTrack'. This usually happens because of the content.For example, one channel may have more deep bass sounds which are naturally louder, or one channel may be mostly quiet but have one loud peak.

Sometimes the track may still sound louder in one channel than the other, even after normalizing. This will adjust the volume of each channel independently so that both have the same maximum (peak) level. Put a check mark in Normalize stereo channels independently.In the dialog box, put a check mark in Normalize maximum amplitude to: and type the amplitude level you require.In Audacity, click the Track Control Panel where it says 'Stereo' to select all the audio of the track, then click Effect > Normalize.In Audacity, if you cannot prevent the imbalance at the input stage, you can correct a stereo imbalance using the Normalize effect after their cording has been made. Audacity is a free open source digital audio editor and recording computer software application.In addition to recording audio from multiple sources, Audacity can be used for post-processing of all types of audio, including podcasts by adding effects such as normalization, trimming, and fading in and out.Audacity has also been used to record and mix entire albums,

Audacity recording