title: asubboost
media types:
Audio
description: Boost subwoofer frequencies.
version: Lavfi9.12.100
creator: libavfilter maintainers
Many parameters support animated values (keyframes) but only the numeric ones. Many numeric properties have type string because they accept an expression (see FFmpeg documentation) even though they evaluate to a numeric value.
description:
set dry gain
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 1
format: double
description:
set wet gain
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 1
format: double
description:
set max boost
type: float
readonly: no
required: no
minimum: 1
maximum: 12
default: 2
format: double
description:
set decay
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
format: double
description:
set feedback
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0.9
format: double
description:
set cutoff
type: float
readonly: no
required: no
minimum: 50
maximum: 900
default: 100
format: double
description:
set slope
type: float
readonly: no
required: no
minimum: 0.0001
maximum: 1
default: 0.5
format: double
description:
set delay
type: float
readonly: no
required: no
minimum: 1
maximum: 100
default: 20
format: double
description:
set channels to filter
type: string
readonly: no
required: no
default: ‘all’
description:
Maximum number of threads
type: integer
readonly: no
required: no
minimum: 0
default: 0
description:
The MLT position value to set on avfilter frames
type: string
readonly: no
required: no
default: frame
values:
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