A multiplier for the microphone sound volume.
property VolumeMultiplier: Double;
The component multiplies the sound signal read from the microphone by this value.
If the value = 1, the sound is not changed.
If the value = 0, the sound is turned off.
If the value > 1, the volume is increased (but the quality of the sound may be decreased).
If the value < 1, the volume is decreased.
This property is applied to sound read from a microphone. If WAVUseOptions=True, it is applied to sound from WAV-files as well.