Volume Logic for Windows iTunes
Volume Logic for Windows iTunes is a sound enhancer that improves the sound quality of your iTunes music playback. It applies automated adjustments of volume dynamics and spectral balancing in real-time. To maintain a uniform listening experience, it intelligently raises low levels and keeps loud signals under control. Volume Logic offers a range of presets for different types of music, as well as a bass boost boost adjustment. There are no further configuration needed, the program handles everything automatically, and noticeably improved the sound quality on our test machine.
The license of this software is Free Trial Software, the price is $19.95, you can free download and get a free trial.