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@audio/spectral-ltas

v1.1.4

Published

LTAS — long-term average spectrum via Welch's method (adaptive-EQ / match-EQ substrate)

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Links

Git

Maintainers

jamenjamendfcreativedfcreativedydy

Keywords

audiodspspectralltaswelch

Readme

@audio/spectral-ltas

LTAS — long-term average spectrum via Welch's method: hann-windowed frames, power-averaged, returned as RMS magnitude per bin. Adaptive-EQ / match-EQ substrate.

npm install @audio/spectral-ltas

import ltas from '@audio/spectral-ltas'

let curve = ltas(data, { frameSize: 4096, hop: 2048 })
// Float32Array, length frameSize/2 + 1 — RMS magnitude per FFT bin, bin k ↔ k·fs/frameSize

Options: - frameSize — Welch analysis window, samples (default 4096) · hop — frame hop, samples (default frameSize / 2, i.e. 50% overlap)

Also exported as an audio.js stat manifest (./audio — mono-folds multichannel input, then runs the kernel).

Part of @audio/spectral.