Update 1: FAQs were added at the bottom of this page. PDF version of all these FAQs can be downloaded from this post.
Galaxy S4 dials music up and down, and balances left and right audio based on your hearing, the sound source and your preferences.
Samsung called this Adapt Sound.
Basically, audio can be adapted and optimized to the content you’re listening to (video, music, etc.) for your ears.
This is good for your ears.
To set a personalized sound while listening to songs with a headset, tap Settings—Adapt Sound-– On.
When you turn the volume up to level 14 or higher, the adapt sound option is not applied to music playback. If you turn the volume down to level 13 or lower, the option is reapplied.
This feature can be controlled in Settings–Sound–Adapt Sound.
FAQs on Adapt Sound
Q1 : Can the Adapt Sound feature work with headsets connected via Bluetooth?
A: No. It’s not compatible. It depends on the Bluetooth headset.