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iTunes Equalizer

iTunes provides an Equalizer that enables you to make dramatic adjustments to the sound output of your music files. Make adjustments manually or select from over 20 presets. You can even save custom settings as a preset and add it to the preset pop-up menu, as explained below.

An equalizer represents the various frequencies of the sound spectrum, or more specifically, the spectrum of human hearing. The spectrum is expressed as a measurement known as hertz (hz).

The iTunes Equalizer represents the frequencies of the spectrum with vertical sliders, also known as faders. The faders are used to increase or decrease the volume of each frequency, expressed as decibels (dB).

  • The lowest frequencies (bass): 32, 64, and 125 hz faders.
  • The mid-range frequencies: 250 and 500 hz faders.
  • The highest frequencies (treble): 1K through 16K (kilohertz) faders.

To show the Equalizer, choose “Show Equalizer” from the View menu. Check the On box to activate the Equalizer.

Choose a preset from the pop-up menu to automatically adjust the faders.

The Preamp slider on the left side of the Equalizer is a secondary volume adjustment. If a music file was originally recorded too quietly or loudly, adjust the volume here. Or if you’re looking for maximum room-booming sound, slide the “Preamp” knob up to the top.

To save your custom settings as a preset:

  1. Adjust the faders to your satisfaction.
  2. From the pop-up menu (where it says “Rock” in the example above), choose “Make Preset....”
  3. In the “Make Preset” dialog box, enter a name for your preset, then click OK.

    Your custom preset now appears in the pop-up menu.

You can rename equalizer presets in the pop-up menu, or delete presets you don’t use.

To edit the preset list:

  1. From the pop-up menu in the Equalizer window, choose “Edit List....”
  2. In the “Edit Presets” window (shown on the right), click on a preset to select it, then click the “Rename...” button or the “Delete” button.

To apply Equalizer settings to a song, use one of the following methods.

  • Select a song, then choose “Show Equalizer” from the View menu. Select a preset from the Equalizer pop-up menu, or use the faders to create a custom setting.
  • Or add an Equalizer column to the iTunes Detail window: From the View menu, choose “View Options....” Check the “Equalizer” box, then click OK. An “Equalizer” column appears in the Details window, from which you can choose a preset for each song in the list (below-right).
  • Or Control-click on a column heading, then choose “Equalizer” from the pop-up menu that appears (shown below-left). This adds the “Equalizer” column to the window (below-right), from which you can select a preset for a song.
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