1 files changed, 8 insertions, 0 deletions
diff --git a/sound.h b/sound.h
index 48f227f..2dda1c5 100644
--- a/sound.h
+++ b/sound.h
@@ -24,8 +24,15 @@
 #define BUFFER_SIZE_MASK   (BUFFER_SIZE - 1)
 
 #define GBA_SOUND_FREQUENCY   (64 * 1024)
+#define GBA_60HZ_RATE 16853760.0f /* 228*(272+960)*60 */
 
+#if !defined(PSP_BUILD) && !defined(__LIBRETRO__)
+// run GBA at 60Hz (~0.5% faster) to better match host display
+#define GBC_BASE_RATE GBA_60HZ_RATE
+#else
 #define GBC_BASE_RATE ((float)(16 * 1024 * 1024))
+#endif
+
 
 typedef enum
 {
@@ -108,6 +115,7 @@ extern u32 sound_frequency;
 extern u32 sound_on;
 
 extern u32 global_enable_audio;
+extern u32 global_process_audio;
 extern u32 enable_low_pass_filter;
 
 void sound_timer_queue8(u32 channel, u8 value);