@audio/spatial-crossfeed

Headphone crossfeed filter

npm install @audio/spatial-crossfeed

import crossfeed from '@audio/spatial-crossfeed'

Bauer stereophonic-to-binaural (BS2B) crossfeed: mixes a lowpassed copy of each channel into the other, reducing the hard L/R separation that reads as unnatural over headphones. direct + cross sums to unity, so mono/correlated content stays at ~unity gain. Modifies left/right in place; requires a params object (not optional — the coefficients cache there and rebuild on fc/fs/level change).

crossfeed(left, right, { fc: 700, level: 0.3 })   // both modified in place

| Param | Default | | |---|---|---| | fc | 700 | Crossfeed lowpass cutoff, Hz | | level | 0.3 | Mix amount, 0..1 | | fs | 44100 | Sample rate |

Use when: headphone playback of stereo content mixed/mastered for speakers.

Part of @audio/spatial — the spatial family umbrella.

MIT © audiojs