How does the bass booster work?
Lots of songs sound weak on cheap headphones, phone speakers or in the car because the low end gets lost. A bass booster strengthens the low frequencies so the kick drum and bass hit harder, without having to touch your player’s equalizer every time.
You choose two things here. The strength, from +1 to +18 dB, sets how much the bass is boosted. The cutoff frequency, from 50 to 250 Hz, sets how far the boost reaches: between 60 and 90 Hz you mostly feel the sub-bass and kick; between 120 and 200 Hz the bass becomes more present and warm. On top of the main filter, a slight lift just above the cutoff helps the bass come through on small speakers too.
Boosting the bass raises the volume and could cause distortion. To prevent that, the result is normalized just below the maximum: the file sounds bassier but has no digital clipping. If it starts to sound boomy, lower the strength a little or raise the cutoff frequency.
Everything is processed in your browser. The free trial covers one file; with ToolStudio Pro you can boost the bass of many songs at once and download them in a ZIP.
How to boost the bass of a song
- Upload the song.
- Choose the boost strength and the cutoff frequency.
- Click “Boost bass” and listen to the result.
- If needed, adjust and process the same file again.
- Download it as MP3 or WAV.
When to boost the bass
- Music for the car, a party or a Bluetooth speaker.
- Songs that sound flat on headphones or on your phone.
- Trap, reggaeton or electronic beats that need more punch.
- Old recordings that lack body.
Supported formats
- Input: MP3, WAV, M4A, AAC, OGG, OPUS, FLAC, WEBM, AIFF and the audio from MP4 or MOV videos.
- Output: MP3 at 128, 192, 256 or 320 kbps, or 16-bit PCM WAV.
- Up to 250 MB per file. The sample rate and channels (mono or stereo) are preserved.
Frequently Asked Questions
Will boosting the bass make the song distort?
Not from digital clipping: the final volume is adjusted automatically so it never goes over the maximum. At very high settings the bass may get boomy on some speakers; if so, lower the strength.
Which cutoff frequency should I choose?
For more kick and sub-bass, 60 to 90 Hz. To make the bass easier to hear on small speakers, 120 to 180 Hz.
Is my audio uploaded to a server?
No. Your audio is read, processed and converted right in your browser using the Web Audio API. The file is never uploaded to a server and never leaves your device.
Is it free?
You get one free try per tool: one audio file. You can reprocess that same file with different settings as many times as you like, but to process a new file you need ToolStudio Pro, which gives you unlimited use of every tool, batch processing (several files at once, downloaded together in a ZIP) and no ads. You can cancel anytime.
