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Equalize the audio in a video

Choose a preset, preview the sound, refine the curve, then export.

How it works
  1. ImportChoose source
  2. EditSet the change
  3. PreviewReview result
  4. ExportCreate file
InputMP4, WebM, MOV and M4V videoOutputMP4 or WebM video

Equalisation changes the balance between frequencies rather than the overall level: it is how a boomy room recording becomes clear, how a thin phone microphone gains body, and how a voice is lifted out from behind background noise. Choose a preset, hear the difference immediately, then refine the curve band by band.

What lives where in the spectrum

Below about 80 Hz there is almost nothing useful in speech — just rumble, handling noise and traffic — which is why a high-pass filter there is the single most reliable improvement to a spoken recording. Between roughly 200 and 400 Hz is where muddiness accumulates, so a gentle cut opens up a boxy-sounding room. Presence and intelligibility sit around 2–5 kHz, and a small boost there makes speech easier to follow. Above 10 kHz is air and sibilance, and a boost there is as likely to sharpen a harsh S as to add sparkle.

Cut narrow, boost wide

Problems are usually specific and improvements are usually broad, and EQ works best when it follows that. To remove a resonance or a hum, use a narrow cut aimed at exactly the offending frequency — sweep a boost around until the problem gets obviously worse, then invert it into a cut at that spot. To make something sound better in general, use a wide, gentle boost of a few decibels. Narrow boosts sound artificial, and large boosts anywhere add noise along with tone. Always compare against the original: ears adapt within seconds and louder reliably seems better.

Questions, answered

How do I make a voice clearer?

High-pass below about 80 Hz to remove rumble, cut gently around 200–400 Hz if the room sounds boxy, and add a small wide boost around 2–5 kHz for presence.

How do I remove a hum?

Find its frequency — usually 50 or 60 Hz plus harmonics — and apply a narrow cut exactly there. A spectrogram makes it easy to see which lines to target.

Why does my EQ sound worse the more I adjust it?

Because ears adapt quickly and louder seems better. Compare against the untouched version regularly, and keep boosts to a few decibels and wide rather than narrow.

Should I use EQ or noise reduction for background noise?

Noise reduction for a broad, steady bed like a fan or hiss. EQ for a specific frequency problem such as hum or rumble, where a narrow cut removes it with little effect on the voice.

When should I apply EQ relative to other steps?

After noise reduction and before compression and normalising, so the dynamics and final level are set on the tone you have actually decided on.

Useful next steps

Continue with a tool that fits naturally after video audio equalizer.

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