The document discusses an audio editing tool called RealEQ that allows adjusting the pitch of audio by changing the gain in decibels. RealEQ uses a gain slider to create a very deep tone in audio by adjusting the pitch through the slider position. The graph shows the high and low points of audio pitch adjustment using this tool.

1. The graph below shows the high and low points of the
audio pitch adjustment.
The ‘VST: RealEQ (Cockos) editing tool helps to create a
very deep tone in the audio. It is the Gain (dB) slider that
does this the position is the pitch of the audio.