What do bass, mid and treble actually control?

Bass covers low frequencies (rumble, low notes), mid covers the range where most vocals and instruments sit, and treble covers high frequencies (crispness, sibilance, brightness).

Can boosting one frequency band cause distortion?

Significant boosts can push the overall level higher and risk clipping — if that happens, reduce the boost slightly or lower the overall volume afterward.

Is this the same as normalizing loudness?

No, equalizing reshapes the tonal balance between frequencies; normalizing adjusts overall loudness — they solve different problems and are often used together.

Does Audio Equalizer upload my files to a server?

No. Audio Equalizer runs entirely in your browser using on-device processing, your files never leave your device.

Audio Equalizer

Boost or cut bass, mid and treble frequencies in an audio clip.

Runs in your browser

Drop an audio file here

Choose File

Three-band parametric EQ (bass 100Hz, mid 1kHz, treble 8kHz), positive values boost that range, negative values cut it.

About this tool

A recording can sound muddy, thin, or harsh depending on how its bass, mid and treble frequencies balance against each other, and that balance isn't something you can fix by just turning the overall volume up or down. This tool lets you boost or cut bass, mid and treble frequencies independently, the same kind of tonal shaping a hardware or software equalizer provides, to correct or stylize how a clip sounds.

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