title: volume
media types:
Audio
description: Change input volume.
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 volume adjustment expression
type: string
readonly: no
required: no
default: ‘1.0’
description:
select mathematical precision
type: string
readonly: no
required: no
format: integer or keyword
values:
description:
specify when to evaluate expressions
type: string
readonly: no
required: no
format: integer or keyword
values:
description:
Apply replaygain side data when present
type: string
readonly: no
required: no
format: integer or keyword
values:
description:
Apply replaygain pre-amplification
type: float
readonly: no
required: no
minimum: -15
maximum: 15
default: 0
format: double
description:
Apply replaygain clipping prevention
type: string
readonly: no
required: no
description:
The MLT position value to set on avfilter frames
type: string
readonly: no
required: no
default: frame
values:
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