Keeps your music sounding full and rich even at low volume. It fixes a quirk of human hearing: when you turn the volume down, your ears naturally lose bass and treble, so quiet music can sound thin and lifeless. Equal-Loudness puts that missing richness back.
Premium feature. Unlock it with a Premium subscription or a one-time lifetime purchase via Google Play.
How it works
Our ears aren't equally sensitive at every volume. At low levels we hear the mid-range (voices) fine, but bass and treble seem to fade away — a well-known effect audio people call the "Fletcher–Munson" curves. It's why music sounds punchy and full when it's loud, but thin and flat when it's quiet.
Equal-Loudness watches your system volume. As you turn it down past a point you choose, it gently lifts the bass and treble by just the right amount to make up for what your ears are losing — so quiet listening keeps the same satisfying balance as loud listening. Turn the volume back up and the effect eases off on its own.
What you can use it for on your phone
- Late-night listening that still sounds full without waking the house.
- Quiet background music at the office or on a commute that doesn't go thin.
- Keeping films and music balanced when you have to keep the volume low.
How to use it
Set the Threshold to the volume below which the help should kick in, use Strength for how much overall lift you want, and Max Bass to cap the bass boost so small speakers don't distort. Turn your system volume down to hear it gradually engage. (Advanced interface.)
Why it helps
Quiet music normally sounds thin and lifeless; this keeps it full and balanced at any volume — ideal for late-night or background listening.
Settings explained
- Strength — The overall amount of compensation (0–200%; 100% is the natural, accurate amount).
- Threshold — The volume above which no help is added. Below it, the lift fades in more and more as you go quieter. A higher threshold means it starts helping sooner (1–100%, default 75%).
- Max Bass — A safety cap on how much bass it will add at the very lowest volumes, so cheap drivers don't distort (0–12 dB, default 7 dB).
What the live display shows
The curve shows the boost it would apply at full strength — lifted at the bass (left) and treble (right) ends, flat through the middle. It grows with Strength and Max Bass, and changes with the Threshold to show how readily it will kick in.