Equalize audio: bass boost and EQ
Boost bass or treble, make voices clearer, cut rumble, or set five EQ bands yourself, for MP3, WAV, M4A and more.
Drop an audio file
or drop it here, or paste. Up to 500 MB per file.
Runs in your browser. Your files are not uploaded.
Formats: the format list shows only what this browser can encode. MP3 and FLAC use an encoder that downloads the first time you choose them. M4A (AAC) is not available in every Firefox version.
Memory: audio is decoded in full, about 23 MB per minute of 48 kHz stereo, so long recordings can be slow on phones. Files that would need more than about 1 GB once decoded (about 45 minutes of 48 kHz stereo, or 90 of mono) are refused before decoding.
How to use Equalize audio: bass boost and EQ
Choose an audio file or drop it on the page.
Pick a preset: Bass boost, Treble boost, Voice clarity or Reduce rumble, or choose Custom.
For Custom, set the gain of each of the five bands in dB, from -12 to +12.
Select Apply, then download the result.
Questions
No. Everything runs in your browser and the file never leaves your device.
Choose the Bass boost preset, or use Custom and raise the Bass (80 Hz) band.
Five: Bass (80 Hz), Low mids (250 Hz), Mids (1 kHz), Presence (4 kHz) and Treble (10 kHz).
A large boost can push peaks past full scale and clip. Use a smaller boost, or run Normalize afterwards.
Related tools
- Change audio volumeMake audio louder or quieter by a number of decibels.
- Normalize audioSet the loudness to -14, -16 or -23 LUFS for streaming, podcasts or broadcast, or bring the loudest peak to a level.
- Fade audio in and outAdd a smooth fade in at the start and a fade out at the end.
- Change audio speed and pitchPlay audio faster or slower. Pitch changes with speed, like a tape.