Fine-tune audio frequencies in real-time with 10 standard ISO biquad peaking filters, visual frequency response curve, multi-mode FFT spectrum visualizer, and instant preset profiles.
Winamp revolutionized PC audio in the late 1990s with its iconic 10-band equalizer and modular DSP plugins. This studio implements exact ISO center frequencies (31Hz to 16kHz) with second-order peaking biquad filters and a calibrated preamp stage.
Built completely on the native W3C Web Audio API. Audio samples are computed locally in 32-bit floating point precision with zero cloud round-trips. Your files stay strictly on your device.
The visualizer computes dynamic discrete Fourier transforms across 512 frequency bins. The upper curve plotter recalculates cumulative phase and magnitude response curves in real-time as you drag sliders.
The 10 bands follow the classic Winamp and ISO standard octaves: 31 Hz (sub-bass rumble), 62 Hz (bass impact), 125 Hz (upper bass), 250 Hz (warmth/mud boundary), 500 Hz (lower midrange/body), 1 kHz (midrange presence), 2 kHz (consonant clarity), 4 kHz (vocal attack), 8 kHz (percussion snap/brightness), and 16 kHz (air and high-end sheen).
When multiple EQ bands are boosted above 0 dB, digital audio can exceed 0 dBFS and introduce harsh clipping distortion. Lowering the preamp gain (e.g. -3 dB to -6 dB) provides digital headroom so you can boost frequencies without artifacting.
Yes. The exported JSON file contains the explicit center frequencies, Q values, and dB gains which map directly to parametric and graphic EQ plugins in software like REAPER, Audacity, and Equalizer APO.