Represents the "V" entry of the media play parameters mh/be dictionary object.

It is an optional entry defined as part of the PDF 1.0 specification.

It contains an integer representing a PDF numeric object.

The PDF specification states that this item assumes a value of 100 if no value has been provided.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 280, page 496.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 291, page 622.

The V entry holds the playback volume as a real number multiplier relative to the system volume. A value of 1.0 means normal volume; 0.0 means silent; values greater than 1.0 increase the volume above normal.