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Audio Equalizer Online

or drop files here

Adjust the tonal balance of a recording with three EQ bands. Change bass, midrange and treble gain, process the track and compare the resulting sound.

Make one tonal change at a time

Start with a small cut or boost and compare. Large simultaneous boosts can make the track louder without making its balance clearer.

Use the fixed frequency regions

The controls work around bass at 120 Hz, midrange at 1 kHz and treble at 6 kHz. They are not freely movable parametric bands.

Leave room for boosted peaks

If processing exceeds full scale, the output is scaled down overall. This protects sample peaks but can offset the apparent loudness of an EQ boost.

Treat EQ as broad tone control

Three bands cannot isolate every unwanted sound. Rumble or hiss may need a high-pass or low-pass filter, depending on the source.

Technical references: Web Audio API specification

Audio Equalizer FAQs

No. These three bands use fixed frequency regions.
No. It scales the processed result uniformly when necessary; it is not time-varying compression.
Try a small reduction in the bass or midrange and compare the voice at a similar playback level. Avoid large boosts that emphasize hiss or harshness. The three broad bands can change tone, but cannot isolate speech from music or repair a poor recording completely.
Audio Equalizer updates the effect during playback when you adjust a control. Use A/B to compare with the source. Render download creates a separate file using the current settings; moving a slider invalidates the previous download.

Related tools

Audio Low-Pass Filter

Reduce frequencies above a chosen cutoff.

Audio High-Pass Filter

Reduce frequencies below a chosen cutoff.

Audio Normalizer

Normalize audio to a chosen peak level while preserving its dynamics.

Audio Dynamics Compressor

Reduce loud peaks using threshold, ratio, attack and release controls.