EQ

Shape low rumble, boxiness and distracting frequency ranges.

Try it with my recording Find help for my audio problem

Audio editor showing a real recording waveform, spectrogram and tools — A real recording in the editor. This screenshot demonstrates the workflow; evaluate treatment results using your own audio.

When should you choose this tool?

Phone audio can be rumbly or muffled; room recordings can sound boxy. EQ changes frequency balance. Identify the troublesome range first: indiscriminate treble boost can bring up hiss as well.

How it changes audio

Filter responses combine. High-pass and Low-pass cut the extremes, shelves reshape broad regions, and Parametric bands boost or cut around a chosen frequency. Automatic headroom adapts output level to boosts.

What do the parameters control?

Filter type: High-pass, Low shelf, Parametric, High shelf and Low-pass. HP/LP slope is fixed at 24 dB/octave. Choose the filter type before fine-tuning frequency.
Frequency; Gain; Q: Frequency in Hz places the band; gain shapes it between −6 and 6 dB. Q controls width for non-pass filters: higher Q narrows the effect. HP/LP have no separate gain or Q controls.
Stereo / Mid / Side: For stereo, process both channels, their shared centre or side difference. Mid/Side are unavailable for mono. This is not automatic speaker identification.
Graph and band switches: Drag a point for frequency and gain; Shift plus vertical drag changes Q; double-click removes it. Numeric controls and per-band switches support precise comparison.

Try a short passage

Start with one band. For rumble, try High-pass and raise the cut only while the voice retains its body.
Use moderate cuts to address boxiness or harshness. Compare Input and Result; a louder version can seem better simply because of level.
Toggle the band and check another speaker. Keep only bands that serve a clear purpose.

What to listen for

Judge intelligibility using complete sentences. If one voice improves while another thins out, use a narrower selection or separate treatment.

Limits of the method

EQ changes noise and speech together within affected frequencies. It does not recover lost highs, masked words or clipped peaks.

Preview covers a short passage. After applying, review the full treated section; you can undo the step from history.

Other useful tools

Noise reductionReduce hiss, fans and persistent background noise using a learned noise profile or adaptive estimation.Speech cleanupSpeech-focused noise reduction with adjustable blend and multiple processing modes.GainRaise or lower selected audio uniformly in dB.

EQ