Which device? Do you mean an iPhone or iPod Touch? There is no way to convert the music ON the device. You need to do it in iTunes on your Mac or PC. An easy way is to use the sync option to convert them to 128 kbps when transferring from your computer to the device.
Which device? Do you mean an iPhone or iPod Touch? There is no way to convert the music ON the device. You need to do it in iTunes on your Mac or PC. An easy way is to use the sync option to convert them to 128 kbps when transferring from your computer to the device.