Press "Play," and let the track roll.
Click the "M" icon on the first vocal track to mute it. If the problem is persistent, such as a residual microphone hum, it will disappear once you mute the offending microphone channe. If muting the first track doesn't make the problem disappear, click the "M" to unmute and mute the next track.
Click "S" once you identify the offending track. This action mutes everything but the selected track, enabling you to listen in isolation.
Click "Effects," then select "Compressor." Adjust the "Ratio" dial on the compressor. This tool limits the dynamic spectrum of the vox by boosting the quiet parts and cutting the loud parts. The ratio determines the intensity of the respective cuts and boosts. By increasing the intensity, you effectively squash the vocal. Click "Save" to engage the new settings, then drag the "Gain" slider dial to decrease the overall volume of the track. This step may hide some of the symptoms of poor recording, such as hum or buzz.
Click "Effects," then select "Equalizer." Click "Spectral Analyzer" to view the frequency curve of the track in question. Click on the dot, and drag it to manipulate the curve on the grid axis. If at any point the audio goes "fuzzy," it identifies a rogue frequency.Many factors can cause this condition, including interference in the recording from vibrating walls, air conditioners or simply poor microphone positioning. Stop moving the curve, which will leave the equalizer tool open on the exact frequency you've highlighted. Drag the "Gain" dial to reduce the strength of the rogue frequency. If this step removes the rogue frequency from the selected section, it will remove from the entire track.
Play back the entire mix. Listen to the track, and note the time where the vox problem occurs.
Click on the navigation bar to highlight a section. Drag the cursor to the end of the section you want to highlight. This step creates a loop so you can listen to the section on repeat. If the problem is intermittent, such as a "pop" from an overzealous chorus delivery, you'll be able to identify the offending track more quickly using a loop.
Click "S" on the first vox track to solo it and mute all other tracks. Listen to the track looped in isolation. If you hear no issue, click "S" again to take off the solo, move on to the next track and click "S" to repeat the process.