Audio Equalizer

Adjust Bass, Middle and Treble.

Drop your audio here

Your file stays on your device. Nothing is uploaded.

Three bands cover what most recordings need: bass around 100 Hz for weight, the middle around 1 kHz where voices live, and treble around 8 kHz for air and clarity. Each can be raised or cut by up to 15 dB.

Presets give a starting point, from a clear-voice curve for muddy speech to the "small radio" sound. The overall level is lowered automatically when you boost, so the result does not distort.

How to use the Audio Equalizer tool

  1. Add the recording.
  2. Choose a preset or move the three sliders.
  3. Download and listen; adjust and run again if needed.
  • Making a muffled voice recording clearer
  • Taming harsh, hissy treble
  • Adding weight to thin laptop-microphone audio

Tips for the best result

  • Cutting what is too loud usually sounds better than boosting what is too quiet.
  • For speech, try bass −3, middle +4, treble +2.

Quick facts

PriceFree
Works withMP3, WAV, M4A, OGG, FLAC
Where it runsIn your browser, on your device
AccountNot needed

Frequently asked questions

What does dB mean here?

Decibels of change. +6 dB roughly doubles the strength of that band; −6 dB halves it.

Why is the result quieter after a big boost?

The level is pulled down to leave room for the boosted band. Use the Volume Booster afterwards if needed.

Can I see a frequency curve?

No. This is a simple three-band tone control, the kind found on a mixer channel.

Will it fix a bad recording?

It improves balance. It cannot remove echo or bring back sound the microphone never captured.