From 3585aa1c2a7af48728486d76a45efce7599b6ff6 Mon Sep 17 00:00:00 2001
From: Nebuleon Fumika
Date: Wed, 9 Jan 2013 02:32:24 -0500
Subject: Increase the audio frequency to 48 kHz. Timer interrupt intervals and
 buffer sizes are also tested at 32 kHz and 44.1 kHz.

---
 source/nds/ds2sound.h | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

(limited to 'source')

diff --git a/source/nds/ds2sound.h b/source/nds/ds2sound.h
index b901939..4bb715b 100644
--- a/source/nds/ds2sound.h
+++ b/source/nds/ds2sound.h
@@ -1,11 +1,15 @@
 // The sound buffer sizes used on the DS2's side, for each value of
 // Settings.SoundPlaybackRate.
 #define DS2_BUFFER_SIZE_4  512 /* tested working */
-// Others don't work, or don't work well.
+#define DS2_BUFFER_SIZE_5 1024 /* like the SNES! tested working */
+#define DS2_BUFFER_SIZE_6 1024 /* tested working */
+#define DS2_BUFFER_SIZE_7 1024 /* tested working */
 
 // In microseconds.
-#define INTERRUPT_TIME_4  2000 /* tested working */
-// Others don't work, or don't work well.
+#define INTERRUPT_TIME_4  4000 /* tested working */
+#define INTERRUPT_TIME_5  5000 /* like the SNES! underflows at 4000 */
+#define INTERRUPT_TIME_6  4000 /* tested working */
+#define INTERRUPT_TIME_7  4000 /* tested working */
 
 // The sampling rate for the sound, in Hz, for each value of
 // Settings.SoundPlaybackRate.
@@ -18,7 +22,7 @@
 #define SND_SAMPLE_RATE_7 48000
 
 // Settings in use. The number should match in all three settings.
-#define INTERRUPT_TIME    INTERRUPT_TIME_4
-#define DS2_BUFFER_SIZE   DS2_BUFFER_SIZE_4
-#define SND_SAMPLE_RATE   SND_SAMPLE_RATE_4
-#define SNES9X_SRATE_ID   4
+#define INTERRUPT_TIME    INTERRUPT_TIME_7
+#define DS2_BUFFER_SIZE   DS2_BUFFER_SIZE_7
+#define SND_SAMPLE_RATE   SND_SAMPLE_RATE_7
+#define SNES9X_SRATE_ID   7
-- 
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