3-Band EQ & Audio Equalizer

Easily adjust the Low (Bass), Mid and High (Treble) frequencies of your audio directly in your browser, then export the result as a WAV file.

Online Audio Equalizer

Balance the tone of a recording without installing any software. Make a podcast voice clearer, tame boomy bass in a phone recording or add some brightness to a dull mix, and hear every change while the audio plays.

What Is a 3-Band Equalizer?

A 3-band EQ splits the sound into three ranges and lets you raise (boost) or lower (cut) each one in decibels (dB). In this tool, every band also has its own frequency control. Bass is a low shelf you can set between 40 and 500 Hz (250 Hz by default); it affects everything below that point, such as kick drums, bass guitar and room rumble. Mid is a bell-shaped filter you can move between 200 Hz and 5 kHz (1 kHz by default), the range where voices and most instruments sit. Treble is a high shelf you can set between 2 and 16 kHz (4 kHz by default) that shapes cymbals, sibilance and air. Each band goes up or down by as much as 15 dB.

How to Get the Best Sound

Start playback and adjust the sliders while you listen. These settings are good starting points:

  • Muddy or boomy audio: set the Mid frequency to around 300 Hz and cut it by 2 to 4 dB. If the low end is still heavy, cut Bass by 2 to 3 dB.
  • Unclear podcast voice: move the Mid frequency to 2 to 3 kHz and boost it by 2 to 3 dB to bring the words forward.
  • More bass: raise Bass by 3 to 6 dB, and check the result on small speakers too.
  • Dull or muffled recording: boost Treble by 2 to 4 dB. If S sounds become harsh, back it off a little.
  • Add air to vocals: set the Treble frequency to around 10 kHz and boost it by 2 to 3 dB for a brighter, more open top end.

Small moves of 2 to 4 dB usually sound more natural than big ones. When it sounds right, export the result as an uncompressed .wav file.

Who Is It For?

The equalizer is made for podcasters who want clearer voices, musicians and DJs shaping a track before a set, and video editors fixing harsh or muffled camera audio, all without installing a digital audio workstation (DAW).

How to Use the 3-Band EQ in 3 Steps

Step 1

Open Your Audio

Choose an audio file from your device. MP3, WAV, M4A, AAC and FLAC work in all modern browsers.

Step 2

Adjust the EQ Bands

Press Preview and move the Bass, Mid and Treble sliders. Use each band’s frequency slider to target the exact range you want to change.

Step 3

Export as WAV

Click Export EQ (WAV) to download the equalized audio as an uncompressed WAV file.

Select Audio File

Supported formats: WAV, MP3, M4A, AAC, FLAC and OGG (OGG depends on your browser)

Tip: Use headphones or studio monitors to hear EQ changes accurately, and make sure your device is not on silent mode.
Loading audio... Please wait
Your waveform will appear here after you choose a file.
Time: 00:00 / 00:00
Tip: Need to cut out unwanted parts before applying EQ?
Open Audio Trimmer

3-Band Equalizer

Note: Big boosts (+10 dB or more) can push peaks above 0 dB. If that happens, the export lowers the overall level automatically, but cutting is often cleaner than boosting.

Export EQ'd Audio

Next Step: Check Your Loudness

Spotify and YouTube play music back at around -14 LUFS, and keeping true peaks at -1 dBTP or lower helps avoid distortion after encoding. Check your new file in the LUFS & Peak Analyzer. If the level needs work, adjust it in the Sound Optimizer.

Tip: Need an MP3? Export a WAV here, then convert it.
Audio Converter

Need more control?

Want precise high-pass and low-pass filters, a compressor or a limiter? Try the Sound Optimizer.

Frequently Asked Questions

What do Bass, Mid and Treble do?
Bass (a low shelf, 40 to 500 Hz) controls the low end, such as kick drums and rumble. Mid (a bell filter, 200 Hz to 5 kHz) controls the range where voices and most instruments sit. Treble (a high shelf, 2 to 16 kHz) controls cymbals, sibilance and air. You can move the frequency of each band to fine-tune exactly what it affects.

How do I fix muddy audio with an equalizer?
Muddiness usually builds up between about 200 and 500 Hz. Set the Mid frequency to around 300 Hz and cut it by 2 to 4 dB while the audio plays. If the low end still sounds heavy, cut Bass slightly as well.

Will I lose audio quality after exporting?
The export is an uncompressed 16-bit WAV file, so no extra compression is added. If your EQ boosts would push peaks above 0 dB, the tool lowers the overall level slightly to prevent clipping.