Filter: avfilter.compand

Plugin Information

title: compand
media types: Audio
description: Compress or expand audio dynamic range.
version: Lavfi7.40.101
creator: libavfilter maintainers

Parameters

av.attacks

description: set time over which increase of volume is determined
type: string
readonly: no
required: no
default: ‘0’

av.decays

description: set time over which decrease of volume is determined
type: string
readonly: no
required: no
default: ‘0.8’

av.points

description: set points of transfer function
type: string
readonly: no
required: no
default: ‘-70/-70|-60/-20|1/0’

av.soft-knee

description: set soft-knee
type: float
readonly: no
required: no
minimum: 0.01
maximum: 900
default: 0.01
format: double

av.gain

description: set output gain
type: float
readonly: no
required: no
minimum: -900
maximum: 900
default: 0
format: double

av.volume

description: set initial volume
type: float
readonly: no
required: no
minimum: -900
maximum: 0
default: 0
format: double

av.delay

description: set delay for samples before sending them to volume adjuster
type: float
readonly: no
required: no
minimum: 0
maximum: 20
default: 0
format: double

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