With Watermark Master it is possible to put
audio onto an existing audio stream. For example, you can add a voice
message or some audio signal to the produced file. This operation is performed
similarly to adding
a watermark.
To add a watermark based on an audio file,
click button on the Watermark
toolbar or open menu Watermark > Add > Audio.
After an Audio watermark is added, its properties
become available in the "Properties" window.
Main
This section includes the main properties
of the Audio watermark.
Path
- the path to the audio file.
Options
This section includes optional
properties of the Audio watermark.
Repeat - indicates whether the added
video or animated GIF watermark will play only once or play repeatedly
until the end of the produced video file.
Volume - the volume of the added audio.
This parameter can take values from 0 (minimum volume) to 100 (maximum
volume).
Also with Watermark Master
you can replace
an existing audio stream with one taken from an audio file.
button on the 
