By Team Edtoolkits · Audio
Use six parametric bands, high/low-pass and shelf filters, notch filters, presets and an accurate response graph.
Use the guide alongside the working tool.
Open Audio Equalizer →Prepare and preview
Add an audio recording and trim the selection.
Load a preset or select a band. Choose its filter, frequency, gain and Q; leave headroom with the preamp.
Prepare the encoded preview, compare with the source and download MP3 or WAV.
Limits and output quality
Browser-supported MP3, WAV, M4A, AAC, OGG, FLAC and WebM; mono or stereo only. One file up to 20 MB and two minutes. Processing runs locally at 44.1 kHz in a cancellable worker. WAV is 16-bit PCM. MP3 re-encoding is lossy, may add frame padding and can use lower sample rates at low bitrates. Source metadata is not retained. The encoder reduces overall gain when needed to prevent sample clipping. Six second-order RBJ biquad filters run in sequence. Q changes resonance, including shelf-filter shape. The graph calculates the same filters used for audio and displays a clipped ±24 dB range; it is not a measured spectrum. Filters start with zero state at the trim boundary. Strong boosts and resonances can raise peaks; export peak protection changes overall level. This is not noise removal or restoration of missing frequencies.
Ready to apply this workflow?
Try Audio Equalizer →Explore a related workflow
- Paint away unwanted audio frequencies with a spectrogram
Use time-frequency selections, a spectral brush, restore and removed-sound auditioning to edit audio locally.
- Audio Compressor & Limiter in your browser
Apply stereo-linked peak or RMS compression with soft knee, attack/release, makeup gain, parallel mix and lookahead sample-peak limiting.
- Volume Booster & Normalizer in your browser
Boost or reduce volume, normalize peaks to a chosen ceiling and remove DC offset.
- Stereo Channel Editor in your browser
Extract left or right, swap channels, mix mono, isolate mid or side, adjust stereo width and invert polarity.
Keep your original files and review the result. Found unclear instructions? Contact Team Edtoolkits.