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Audio: Change how volume works

Across the entire audio system, audio now works in 0-1 terms instead of
0-100 as before. Therefore, volume is now a double instead of an int.
The master volume of the AudioServer changes smoothly through a
FadingProperty, preventing clicks. Finally, volume computations are done
with logarithmic scaling, which is more natural for the human ear.

Note that this could be 4-5 different commits, but as they change each
other's code all the time, it makes no sense to split them up.
This commit is contained in:
kleines Filmröllchen 2021-08-27 23:47:09 +02:00 committed by Andreas Kling
parent 2909c3a931
commit 152ec28da0
14 changed files with 190 additions and 45 deletions

View file

@ -30,7 +30,8 @@ constexpr int buffer_size = sample_count * sizeof(Sample);
constexpr double sample_rate = 44100;
constexpr double volume_factor = 1800;
// Headroom for the synth
constexpr double volume_factor = 0.1;
enum Switch {
Off,