Parametric EQ

Menu Command: Effect | Filter | Parametric EQ

The Parametric Equalizer (EQ) is a flexible tool for reducing or enhancing ranges of frequencies. GoldWave presents an easy to use interface where all the parameters for up to 40 bands can be quickly configured.

Graph Window
The graph shows frequency on the x-axis in Hertz and the gain on the y-axis in decibels. Each band is displayed in the graph as a diamond shaped box located at its center frequency and gain. The width of the box shows its bandwidth. The currently selected band is shown in blue and its exact settings are given in edit box/fader controls below the graph. A short time frequency analysis graph is drawn with the left channel in green and the right channel in red. The time of the analysis can be changed using the scroll bar located at the bottom of the graph.

Controls
A band can be configured by selecting its number from the Band box and adjusting the Gain, Center, and Width controls. A quicker way is to drag-and-drop its diamond box to a new location on the graph. Note that because of the logarithmic frequency scale, the width of a diamond changes as you move it left or right. The bandwidth, however, remains constant.

More bands can be added by using the diamond plus button. Use the diamond minus button to remove the current band.

See Also