Fix the sound crack problem in v9

CHANGES.WII

@@ -9,6 +9,14 @@
 
 		TODO: Handle Run/Stop in virtual keyboard (?)
 
+version 10:
+		* Use 32KHz sound samplerate. This fixes much of the cracking sound
+		problems from v9. It also allows sound to be transferred via the network
+		to both Linux/Wii (sharing the same sample rate) and lowering the
+		network transfer rate. 
+
+		-- Simon Kagstrom <simon.kagstrom@gmail.com>,
+
 version 9:
 		* Fix a buffer overflow in the network status string...
 

Src/SID.cpp

@@ -279,10 +279,8 @@ void MOS6581::SetState(MOS6581State *ss)
 
 #if defined(AMIGA) || defined(__riscos__)
 const uint32 SAMPLE_FREQ = 22050;	// Sample output frequency in Hz
-#elif defined(GEKKO)
-const uint32 SAMPLE_FREQ = 48000;
 #else
-const uint32 SAMPLE_FREQ = 44100;	// Sample output frequency in Hz
+const uint32 SAMPLE_FREQ = 32000;	// Sample output frequency in Hz
 #endif
 const uint32 SID_FREQ = 985248;		// SID frequency in Hz
 const uint32 CALC_FREQ = 50;			// Frequency at which calc_buffer is called in Hz (should be 50Hz)

Src/SID_linux.h

@@ -70,11 +70,11 @@ void DigitalRenderer::init_sound(void)
 	ioctl(devfd, SNDCTL_DSP_SETFRAGMENT, &arg);
 	arg = 0;
 	ioctl(devfd, SNDCTL_DSP_STEREO, &arg);
-	arg = 44100;
+	arg = 32000;
 	ioctl(devfd, SNDCTL_DSP_SPEED, &arg);
 	ioctl(devfd, SOUND_PCM_READ_RATE, &arg);
-	if (arg < 43000 || arg > 45000)
-		return;
+	//if (arg < 43000 || arg > 45000)
+	//	return;
 
 	ioctl(devfd, SNDCTL_DSP_GETBLKSIZE, &sndbufsize);
 	sound_buffer = new int16[sndbufsize];

Src/gcaudio.c

@@ -13,7 +13,7 @@
 #include <gccore.h>
 #include <string.h>
 
-#define SAMPLERATE 48000
+#define SAMPLERATE 32000
 
 #define MIXBUFSIZE_BYTES 16000
 #define MIXBUFSIZE_SHORT (MIXBUFSIZE_BYTES / 2)
@@ -90,7 +90,7 @@ static void AudioSwitchBuffers()
 void InitialiseAudio()
 {
 	AUDIO_Init(NULL); // Start audio subsystem
-	AUDIO_SetDSPSampleRate(AI_SAMPLERATE_48KHZ);
+	AUDIO_SetDSPSampleRate(AI_SAMPLERATE_32KHZ);
 	AUDIO_RegisterDMACallback( AudioSwitchBuffers );
 	memset(soundbuffer, 0, SOUNDBUFSIZE*2);
 	memset(mixbuffer, 0, MIXBUFSIZE_BYTES);