Depending on how a song was recorded or encoded, its relative volume might differ from other songs on your iPod playlist, forcing you to constantly adjust your volume settings. However, iTunes's Sound Check feature normalizes each song's volumes so they play them at approximately the same level. All modern iPod models also have their own Sound Check option for toggling the setting on or off. However, enabling this option on the iPod nano has no effect unless you also enable it in iTunes.
Connect your iPod to your computer using the USB cable. This connection is necessary before iTunes will update the normalization information on the iPod.
Click "iTunes" and select "Preferences." On a Mac, click "Edit" and select "Preferences."
Click "Playback," "Sound Check" and then "OK" to enable this option.
Click the "Eject" icon next to the iPod and then disconnect the USB cable.
Tap "Settings" from the iPod's Home screen.
Touch the "Sound Check" On/Off slider to turn it On.
- The Sound Check option in iTunes will disable the iPod nano's Equalizer option.
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