Double-click the desktop icon for your digital audio workstation. If the relevant song session doesn’t load automatically, open the “File” menu and select it from the “Recent” sub-menu.
Click the “S” icon on all of your vocal tracks. This stands for “Solo.” By soloing the vocals, you mute everything else so you can hear the vocals in isolation.
Hit “Play” so you can hear the sound edits in real time.
Click on the main vocal track to highlight it. This assigns all subsequent alterations to this track until you highlight another one. It’s preferable to treat each track individually when correcting a boxy sound.
Open an equalizer tool. The method for doing so varies very slightly according to which program you use. For example, in Logic, click on the “Inserts” and select “Equalizers.” An equalizer enables you to enhance weak frequencies and cut unwanted frequencies. A vocal that lacks tonal range and dynamics sounds boxy. Equalization can add tonal range.
Click on the equalizer curve and move it around. This is superimposed onto a grid, the vertical axis represents amplitude, and the horizontal axis represents frequency. The position of the curve relative to the grid represents the frequency spectrum of the audio. By moving the curve, you increase or decrease the presence of the frequency on the horizontal axis. Listen as you do this. When the vocal becomes brighter and clearer, double-click on the curve to set the selected frequency at the selected amplitude.
Open the effects menu and select a reverb effect. Typical digital audio workstations have a range of reverb options. Reverb adds ambiance to audio, emulating the effect of singing in an acoustically rich environment, such as a cathedral, cave or canyon.
Tweak the “Depth” parameter on the reverb interface to alter the intensity of the effect. Reverb makes your vocals sound bigger and more spacious, as if they were recorded from a distance.