volume
The volume element changes the volume of the audio data.
Example launch line
gst-launch-1.0 -v -m audiotestsrc ! volume volume=0.5 ! level ! fakesink silent=TRUE
This pipeline shows that the level of audiotestsrc has been halved (peak values are around -6 dB and RMS around -9 dB) compared to the same pipeline without the volume element.
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseTransform ╰──GstAudioFilter ╰──volume
Implemented interfaces
Factory details
Authors: – Andy Wingo
Classification: – Filter/Effect/Audio
Rank – none
Plugin – volume
Package – GStreamer Base Plug-ins
Pad Templates
sink
audio/x-raw:
format: { F32LE, F64LE, S8, S16LE, S24LE, S32LE }
rate: [ 1, 2147483647 ]
channels: [ 1, 2147483647 ]
layout: interleaved
src
audio/x-raw:
format: { F32LE, F64LE, S8, S16LE, S24LE, S32LE }
rate: [ 1, 2147483647 ]
channels: [ 1, 2147483647 ]
layout: interleaved
Properties
mute
“mute” gboolean
mute channel
Flags : Read / Write
Default value : false
volume
“volume” gdouble
volume factor, 1.0=100%%
Flags : Read / Write
Default value : 1
volume-full-range
“volume-full-range” gdouble
The volume-full-range factor is a range from 0.0 to G_MAXDOUBLE so it is very inclusive, e.g. gain of +48 dB is very reasonable. This property allows setting higher value than the volume property.
Flags : Read / Write
Default value : 1
Since : 1.24
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