Audio Equalizer
âšī¸ How it works:
- Upload your audio file
- Process and equalize your file
- Download result
Equalize Audio Online — Adjust Bass, Treble and Frequencies
Shape how your audio sounds rather than just how loud it is. Make the bass louder, lift the treble, pull back a muddy low end, or push vocals forward — using five frequency bands you set yourself, each adjustable by up to 12 dB in either direction, or one of ten presets if you would rather not think about numbers. No sign-up and no watermarks.
How to Adjust Bass and Treble
- Click the upload area above or drag and drop your audio file (up to 10 MB).
- On the next screen, pick a preset (such as Bass Boost or Voice Clarity) or move the frequency band sliders to taste.
- Apply the equalizer and download your audio.
Features
- Ten presets – Flat, Voice, Podcast, Bass Boost, Treble Boost, Rock, Jazz, Classical, Pop and Electronic
- Five bands – centred at 150 Hz, 500 Hz, 1.5 kHz, 4 kHz and 8 kHz
- ±12 dB per band – enough range to make a real difference, without wrecking the file
- Shelves and peaks – bass and treble are shelving filters, the three mid bands are peaking filters
- Free & private – no sign-up, no watermark, processed on our server
What Each Band Controls
- Bass — 150 Hz – weight and warmth. Boost for more punch on music; cut if the sound is boomy or rumbling.
- Low mid — 500 Hz – the mud zone. Almost nothing sounds better with more of it, and cutting here is the single most useful move on a cloudy recording.
- Mid — 1.5 kHz – body and presence of a voice. Lift it to bring a speaker or singer forward in the mix.
- High mid — 4 kHz – where consonants live, and where intelligibility is won or lost. A small lift makes speech noticeably easier to follow; too much becomes harsh.
- Treble — 8 kHz – air and sparkle. Boost to brighten a dull recording; cut to soften hiss or sibilance.
When You Might Need This
- A song with no weight to it that needs the bass brought up
- A recording that sounds cloudy or boxy and needs the low mids pulled back
- Vocals buried under the backing that need pushing forward
- A dull, lifeless transfer from tape or vinyl that needs brightening
- Speech that is hard to follow even though it is loud enough
- Music that sounds harsh or fatiguing on your particular headphones
- A track you want to tune for a car stereo, a phone speaker or earbuds
- Matching the tone of clips recorded on different devices
Frequently Asked Questions
Raise the Bass band, or tap the Bass Boost preset, which lifts it by 6 dB and adds a little to the low mids. Go gently: past about +6 dB most speakers stop reproducing the extra cleanly and you get a woolly thump rather than more depth. If you want the bass to feel stronger without adding any, try cutting the Low mid band instead — removing what is above the bass makes the bass itself stand out.
Cut, do not boost. Muddiness almost always lives in the Low mid band around 500 Hz — the build-up of energy that makes a recording sound like it is coming through a blanket. Pull that band down by 3 to 6 dB and most cloudy audio clears up immediately. Adding treble to compensate is the instinct, but it usually makes things harsh without fixing the underlying problem.
Lift the Mid band at 1.5 kHz for body and the High mid at 4 kHz for consonants, a few decibels each — that is essentially what the Voice preset does, along with trimming the bass so the low end stops competing. If the vocal still sits behind the music, the more effective move is often to cut the low mids of the whole track rather than to keep pushing the voice up.
Because a boost adds level, and if the file is already close to the ceiling there is nowhere for it to go. Every band you raise makes the whole thing louder, so several boosts stack up quickly. The professional habit is to cut rather than boost wherever you can — reducing the bands you do not want achieves the same balance and leaves headroom instead of using it up. If you must boost, follow with Adjust Volume and normalize afterwards.
Enhance Audio gives you one fixed EQ curve designed for speech, along with other one-click repairs like normalize and de-ess. It is the right page when you want a problem fixed and do not want to think about frequencies. This page hands you the controls: five bands, ±12 dB each, and ten starting points. Come here when you know what you want to change, or when the fixed curve did not do what you needed.
Voice or Podcast for anything spoken — Podcast is the gentler of the two. Bass Boost or Electronic for music that needs more weight, Treble Boost for something dull, and Rock, Jazz, Classical or Pop as genre-shaped starting points. Flat resets everything to zero. A preset only sets the sliders, so you can always nudge them afterwards.
An equalizer raises or lowers specific frequency ranges in your audio — for example boosting the bass, lifting the treble, or making voices clearer — so you can change how a track sounds without re-recording it.
No. You can start from a preset like Bass Boost, Treble Boost, Voice Clarity, Podcast, Rock or Jazz, and adjust the individual frequency bands only if you want finer control.
EQ only adjusts the balance of frequencies; the rest of the audio is left intact.
You can upload MP3, WAV, OGG, FLAC, AAC, M4A and WMA up to 10 MB. Need a different format afterwards? Use our Convert Audio tool.
Related Audio Tools
- Enhance Audio – normalize, EQ, de-ess and clean up audio
- Adjust Volume – make audio louder or quieter
- Noise Reduction – remove background hiss and hum
- Voice Effect – add effects to a voice recording
- Convert Audio – change the audio format