QTMTB 29 - Values of a Movie or Track Volume (1-May-95)
Q What do the values of a movie or track volume represent? Is there a
way to increase a track's volume?
A The volume is described as a small fract 8:8, and its values go from -1 to 1,
with negative values as place holders. The maximum volume you can get is
0x0100, and the minimum is 0 (or any negative value). The advantage to using
negative volumes is that you can turn off the sound while maintaining the
volume level. For example, -1 and 0 both equate to no volume, but the -1
indicates that 1 should be the volume when sound is turned back on, whereas the
0 does not.
The volume for a track is scaled to the movie's volume, and the movie's volume
is scaled to the value the user specifies for the speaker volume using the
Sound control panel. This means that the movie volume represents the maximum
loudness of any track in the movie.
With Sound Manager 3.0 and above, you can increase the loudness above the
maximum level setting using the shift key.
