Equalizer

Menu Command: Effect | Add Or Modify, choose Add Effect [+*] button, choose Equalizer

The Equalizer controls the volumes of bands of frequencies in a sound. Use it to boost the bass or treble of a song or put more emphasis on the vocals. Settings can be entered manually or selected from presets.

Source Volume
Sets the volume of the sound that isn't processed by the Equalizer effect. 100% is full volume. The sound may have been processed by other effects preceeding the Equalizer effect.

Effect Volume
Sets the volume of the processed sound.

Equalizer levels
Adjust The levels (or gains) for 10 frequency bands by using the scroll bars or by entering a value in the appropriate edit box. A gain of 12 dB is equalivent to an increase of 400%. A gain of -12 dB is equalivent to a reduction to 25%. A 0 gain is no change.