6 copyright: Ushodaya Enterprises Limited
13 Adjust an audio stream's volume level. This filter is based on the
16 - identifier: argument
20 The gain may be indicated as a floating point value of the gain
23 The gain may also be indicated as a numeric value with the suffix "dB"
24 to adjust in terms of decibels.
26 The gain may also be set to "normalise" to normalise the volume to the
27 target amplitude -12dBFS.
32 The number of video frames over which to smooth normalisation.
35 - identifier: normalise
39 Normalise the volume to the specified amplitude.
41 The normalization may be indicated as a floating point value of the
44 The normalisation may also be indicated as a numeric value with the
45 suffix "dB" to set the amplitude in decibels.
52 Limit all samples above the specified amplitude.
54 The limiting may be indicated as a floating point value of the
57 The limiting may also be indicated as a numeric value with the suffix
58 "dB" to set the limiting amplitude in decibels.
61 - identifier: max_gain
65 A floating point or decibel value of the maximum gain that can be
66 applied during normalisation.
73 A gain value just like the Gain property. This causes the gain to be
74 interpolated from 'gain' to 'end' over the duration.