M CHANGES → CHANGES

@@ -38,6 +38,7 @@ - GBA Video: Fix sprite mis-ordering behavior in some cases (fixes #168)
  - GBA Video: Fix window interactions with 16-color mode 0 mosaic
  - GBA Video: Fix sprite boundary conditions with mosaic
  - Video: Fix FFmpeg crashing when the file extension is wrong
+ - GBA Audio: Fix GB audio channels being too quiet (fixes #159)
 Misc:
  - Qt: Disable sync to video by default
  - GBA: Exit cleanly on FATAL if the port supports it

M src/gba/gba-audio.c → src/gba/gba-audio.c

@@ -744,7 +744,7 @@
 static void _sample(struct GBAAudio* audio) {
 	int16_t sampleLeft = 0;
 	int16_t sampleRight = 0;
-	int psgShift = 6 - audio->volume;
+	int psgShift = 5 - audio->volume;
 
 	if (audio->ch1Left) {
 		sampleLeft += audio->ch1.sample;