@audio/dynamics-ducker

External-sidechain compressor: main signal's gain is reduced in proportion

npm install @audio/dynamics-ducker

import ducker from '@audio/dynamics-ducker'

External-sidechain compressor. Main signal's gain tracks the level of a separate side signal.

import { ducker } from '@audio/dynamics'

// batch
let podcast = ducker(music, voice, { threshold: -30, range: -12 })

// streaming — callable takes (main, side); call with no args to flush
let duck = ducker({ threshold: -30, range: -15 })
let out1 = duck(musicBlock1, voiceBlock1)
let out2 = duck(musicBlock2, voiceBlock2)
let tail = duck()

| Param | Default | | |---|---|---| | threshold | -30 | dB (on side level) | | ratio | 4 | — | | knee | 6 | dB | | range | -24 | dB, max reduction | | attack | 20 | ms | | release | 300 | ms |

Use when: music-under-voice podcasts, dialogue ducking, sidechain-pumped mixes. Not for: sidechain from the same signal — use compressor.

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

MIT © audiojs