@audio/denoise-wiener

Wiener filter / MMSE-LSA denoise with decision-directed a-priori SNR

npm install @audio/denoise-wiener

import wiener from '@audio/denoise-wiener'

MMSE Wiener / log-MMSE (Ephraim-Malah 1984/1985) with decision-directed a-priori SNR.

wiener(data, { rule: 'wiener' })                              // pure Wiener gain
wiener(data)                                                   // defaults: 'mmse-lsa' rule

| Param | Default | | |---|---|---| | rule | 'mmse-lsa' | 'wiener' or 'mmse-lsa' (log-spectral, less musical noise) | | alpha | 0.98 | Decision-directed smoothing (alias of alphaDD) | | frameSize | 2048 | STFT frame | | hopSize | frameSize/4 | OLA hop | | noiseFrames | first 4 frames | Leading noise-only frames for PSD bootstrap |

Use when: transparent broadband denoise; the "safe default" for stationary noise.

Part of @audio/denoise — the denoise family umbrella. This README is generated from the umbrella docs.

MIT © audiojs