EQ is so much more than the Rock preset in your Spotify app. If you want better sound, ... The decibel (dB) is the unit of measurement used to express volume level or loudness.

Music Volume EQ. Price: Free /In-app purchases ($7.99 per item) Music Volume EQ and Bass Booster is one of the most popular equalizer apps out there. Thankfully, it actually works pretty well.

Equal loudness joins several other nifty audio tuning features in Wavelet, including the aforementioned AutoEq, a 9-band graphic equalizer, a limiter, channel balance, reverberation, a virtualizer ...

EQ (which stands for equalization) is the method by which you adjust the loudness of one or more frequency ranges to create an overall sonic landscape that suits your taste.

Tap Equalizer and then choose one of the available presets. Based on testing, some options that seem louder than the others include Dance, Jazz, Rock, and, as the name implies, Loudness.

Most EQ apps are bundled with a graphic equalizer of up to 10 bands, ... and reverb. Direct Volume Control (DVC) cuts through the Android audio API for a better dynamic range.