Adjust installer effects volume again

Signed-off-by: Isaac Marovitz <isaacryu@icloud.com>

Author: IsaacMarovitz

MarathonRecomp/apu/embedded_player.cpp

@@ -10,10 +10,6 @@
 #include <res/sounds/move.ogg.h>
 #include <res/sounds/main_deside.ogg.h>
 
-// The raw sound files are kind of loud
-// so reduce their volume slightly in player
-const float EFFECTS_VOLUME = 0.5f;
-
 enum class EmbeddedSound
 {
     WindowOpen,
@@ -85,7 +81,7 @@ static void PlayEmbeddedSound(EmbeddedSound s)
         data.chunk = Mix_LoadWAV_RW(SDL_RWFromConstMem(soundData, soundDataSize), 1);
     }
 
-    Mix_VolumeChunk(data.chunk, (Config::MasterVolume * Config::EffectsVolume * EFFECTS_VOLUME) * MIX_MAX_VOLUME);
+    Mix_VolumeChunk(data.chunk, (Config::MasterVolume * Config::EffectsVolume * EmbeddedPlayer::EFFECTS_VOLUME) * MIX_MAX_VOLUME);
     Mix_PlayChannel(g_channelIndex % MIX_CHANNELS, data.chunk, 0);
     ++g_channelIndex;
 }

MarathonRecomp/apu/embedded_player.h

@@ -4,6 +4,7 @@ struct EmbeddedPlayer
 {
     // Arbitrarily picked volume to match the mixing in the original game.
     static constexpr float MUSIC_VOLUME = 0.25f;
+    static constexpr float EFFECTS_VOLUME = 0.2f;
 
     static inline bool s_isActive = false;