diff --git a/Src/gcaudio.c b/Src/gcaudio.c
index b0842d5..206fe9e 100644
--- a/Src/gcaudio.c
+++ b/Src/gcaudio.c
@@ -129,6 +129,8 @@ void PlaySound( int16_t *Buffer, int count )
 	level = IRQ_Disable();
 	for( i = 0; i < count; i++ )
 	{
+		/* FIXME simonk: 8192 is a Frodo artifact. Not sure why this
+		 * is needed */
 		sample = (Buffer[i] & 0xffff) + 8192;
 		dst[mixhead++] = sample | ( sample << 16);
 		if (mixhead == 4000)