diff --git a/boop/audio/sid.c b/boop/audio/sid.c
index 0128d39..9ade33e 100644
--- a/boop/audio/sid.c
+++ b/boop/audio/sid.c
@@ -157,7 +157,7 @@ void beep(unsigned char n) {
 			SIDsetfrq(0,5001);
 			break;
 	}
-	PWMPR = 0;
+	//PWMPR = 0;
 	switchSound(SOUND_ON);
 	SID.flags |= SIDenable;
 	SID.reg[REG_Control] |= GATE;
diff --git a/boop/audio/sid.h b/boop/audio/sid.h
index e67980f..05833b5 100644
--- a/boop/audio/sid.h
+++ b/boop/audio/sid.h
@@ -101,12 +101,12 @@ struct SID_ {
 
 struct SID_ SID;
 
-unsigned int playtone_cb;
-unsigned char *playtone[3];
-unsigned char playstate;
-unsigned char tonelen[3];
-unsigned short playcounter;
-unsigned short playcountermax;
+extern unsigned int playtone_cb;
+extern unsigned char *playtone[3];
+extern unsigned char playstate;
+extern unsigned char tonelen[3];
+extern unsigned short playcounter;
+extern unsigned short playcountermax;
 
 void SIDsetfrq(unsigned char voice, unsigned short frq);
 void SIDsetadsr(unsigned char voice,unsigned char attack, unsigned char decay, unsigned char sustain, unsigned char release);
diff --git a/boop/audio/sidfiles.h b/boop/audio/sidfiles.h
index 0a4dccb..6f10dde 100644
--- a/boop/audio/sidfiles.h
+++ b/boop/audio/sidfiles.h
@@ -769,6 +769,7 @@ const unsigned char song1[] = {
 0xa2,0x25,0x00,0x00,0x21,0x11,0x70,0xd2,0x0f,0x00,0x00,0x21,0x00,0x70,
 0xa2,0x25,0x00,0x00,0x21,0x11,0x70,0xd2,0x0f,0x00,0x00,0x21,0x00,0x70,
 0xa2,0x25,0x00,0x00,0x21,0x11,0x70,0xd2,0x0f,0x00,0x00,0x21,0x00,0x70,
+/*
 0x1f,0x15,0x00,0x00,0x21,0x11,0x70,0xc3,0x10,0x00,0x00,0x21,0x00,0x70,
 0x1f,0x15,0x00,0x00,0x21,0x11,0x70,0xc3,0x10,0x00,0x00,0x21,0x00,0x70,
 0x1f,0x15,0x00,0x00,0x21,0x11,0x70,0xc3,0x10,0x00,0x00,0x21,0x00,0x70,
@@ -1001,4 +1002,5 @@ const unsigned char song1[] = {
 0xc1,0x2c,0x00,0x00,0x21,0x11,0x70,0x31,0x1c,0x00,0x00,0x21,0x00,0x70,
 0xc1,0x2c,0x00,0x00,0x21,0x11,0x70,0x31,0x1c,0x00,0x00,0x21,0x00,0x70,
 0xc1,0x2c,0x00,0x00,0x21,0x11,0x70,0x31,0x1c,0x00,0x00,0x21,0x00,0x70
+*/
 };
diff --git a/boop/audio/sound.c b/boop/audio/sound.c
index 310ecbc..3eee98c 100644
--- a/boop/audio/sound.c
+++ b/boop/audio/sound.c
@@ -20,6 +20,7 @@
 #include "sound.h"
 #include "soundirq.h"
 #include "lpc2220.h"
+#include "pwm.h"
 
 #define AUTO_OFF_TIME	0x4000
 
@@ -37,7 +38,7 @@ unsigned char timeout;
 unsigned int auto_timeout;
 
 void startSoundIRQ(void)
-{
+{/*
 	timeout = 0;
 	auto_timeout = 0;
 	out1 = 0;
@@ -57,6 +58,7 @@ void startSoundIRQ(void)
 	//VICVectCntl0 = VIC_SLOT_EN | INT_SRC_PWM;
 	VICIntSelect |= INT_PWM;
 	VICIntEnable = INT_PWM;
+	*/
 }
 
 void initSound(void)
@@ -67,12 +69,18 @@ void initSound(void)
 	tval = 0;
 	last_sample = 0;
 	bl_val = 0x3F;
+	timeout = 0;
+	auto_timeout = 0;
+	out1 = 0;
 }
 
 void switchSound(unsigned char onoff)
 {
 	if(onoff)
 	{
+
+		PWM_set_frequency(30864);
+
 		sound_shutdown = 0;
 		PINSEL0 &= ~(3 << (2 * SND_PWM)); 			// IO
 		PINSEL0 |=  (2 << (2 * SND_PWM)); 			// PWM
@@ -81,6 +89,7 @@ void switchSound(unsigned char onoff)
 		FIODIR0 |= (1<<SND_ON) | (1<<SND_EN);
 		FIOSET0  = (1<<SND_EN);
 		FIOCLR0  = (1<<SND_ON);
+
 	}
 	else
 	{
diff --git a/boop/audio/soundirq.c b/boop/audio/soundirq.c
index 81635e7..a7df808 100644
--- a/boop/audio/soundirq.c
+++ b/boop/audio/soundirq.c
@@ -21,6 +21,7 @@
 #include "sound.h"
 #include "sid.h"
 #include "lpc2220.h"
+#include "pwm.h"
 
 #define AUTO_OFF_TIME	0x4000
 
@@ -41,13 +42,15 @@ unsigned char sact;
 unsigned char out1;
 unsigned char last_sample;
 unsigned char sound_shutdown;
+unsigned char tcount;
 
 const unsigned char prevvoice[3] = {2,0,1};
 
 void __attribute__ ((section(".text.fastcode"))) soundIRQ (void)
 {
 	PWMIR = 0x01;
-	
+
+/*
 	// play sample
 	if(sact != 0)
 	{
@@ -75,8 +78,9 @@ void __attribute__ ((section(".text.fastcode"))) soundIRQ (void)
 			PWMLER = 0x04;
 		}
 	}
+
 	// synthesize
-	else if(SID.flags & SIDenable) 
+	else */if(SID.flags & SIDenable)
 	{
 		unsigned short tempphase;
 		unsigned char x;
diff --git a/boop/boop_rom.bin b/boop/boop_rom.bin
index dc098e9..fda6685 100644
Binary files a/boop/boop_rom.bin and b/boop/boop_rom.bin differ
diff --git a/boop/gui/testmenu.c b/boop/gui/testmenu.c
index e5af164..333fed4 100644
--- a/boop/gui/testmenu.c
+++ b/boop/gui/testmenu.c
@@ -29,6 +29,7 @@
 #include "ir_selector.h"
 #include "infrared.h"
 #include "sid.h"
+#include "sidfiles.h"
 #include "timerfuncs.h"
 #include "sound.h"
 #include "lpc2220.h"
@@ -934,6 +935,9 @@ void test_sid(void) {
 	draw_string (0, 95, "color keys", LCD_COLOR_B, DRAW_PUT);
 	draw_string (0, 104, "set waveform", LCD_COLOR_B, DRAW_PUT);
 	
+	draw_string (0, 120, "Mute", LCD_COLOR_B, DRAW_PUT);
+	draw_string (0, 129, "Raiders March", LCD_COLOR_B, DRAW_PUT);
+
 	sysInfo |= SYS_IR;
 	SID.noise = 0xaa;
 	playstate = 0x00;
@@ -1052,6 +1056,20 @@ void test_sid(void) {
 				playtone_cb = addTimerCB(SIDplaytone, 4);
 				startCB(playtone_cb);
 			}
+		} else if (KEY_Mute)
+		{
+			if (playstate == 0)
+			{
+				playstate = 1;
+
+				playtone[0] = (unsigned char*)&song1[0];
+
+				playcounter = 0;
+				playcountermax = sizeof(song1)/14;
+
+				playtone_cb = addTimerCB(SIDplaydump, 4);
+				startCB(playtone_cb);
+			}
 		}
 	} while (!KEY_Exit);
 	sysInfo &= ~SYS_IR;
diff --git a/boop/infrared/infrared.c b/boop/infrared/infrared.c
index 415b303..02f3d25 100644
--- a/boop/infrared/infrared.c
+++ b/boop/infrared/infrared.c
@@ -62,9 +62,9 @@ void startIrIRQ(void)
 //	T1PR		= 0x01;
 	T1MCR		= 0x03;
 
-	//VICVectAddr1	= (unsigned long)&(irIRQ);
-	//VICVectCntl1	= VIC_SLOT_EN | INT_SRC_TIMER1;
-	VICIntSelect 	|= INT_TIMER1;
+	VICVectAddr1	= (unsigned long)&(irIRQ);
+	VICVectCntl1	= VIC_SLOT_EN | INT_SRC_TIMER1;
+	//VICIntSelect 	|= INT_TIMER1;
 	VICIntEnable	= INT_TIMER1;
 }
 
diff --git a/boop/infrared/pwm.c b/boop/infrared/pwm.c
index 875c3df..d447990 100644
--- a/boop/infrared/pwm.c
+++ b/boop/infrared/pwm.c
@@ -18,6 +18,7 @@
 
 #include "global.h"
 #include "lpc2220.h"
+#include "irq.h"
 
 void PWM_init(void)
 {
@@ -25,24 +26,44 @@ void PWM_init(void)
 	PINSEL1 &= ~(3 << (10));      // IO
 	PINSEL1 |=  (1 << (10));       // PWM5
 
-	PWMTC = 0;        //Timer Counter
-	PWMPR = 0;        //Prescale Register
-	PWMPC = 0;        //Prescale Counter
+	PWMTC = 0;			//Timer Counter
+	PWMPR = 0;			//Prescale Register
+	PWMPC = 0;			//Prescale Counter
 
-	PWMMR0 = 416;     // pwm rate
-	PWMMR5 = 0;     // pwm value
+	PWMMR0 = 416;		// pwm rate
+	PWMMR2 = 0x00;		// pwm value sound
+	PWMMR5 = 0x00;		// pwm value IR
 
-	PWMLER = 0x21;    //Latch Enable
-	PWMMCR = 0x02;    //Match Control
-	PWMPCR |= (1<<13);
+	PWMLER = 0x26;		//Latch Enable
+	PWMMCR = 0x03;		//Match Control
+	PWMPCR |= (1<<13) | (1<<10);
 	PWMTCR = 0x03;
 	PWMTCR = 0x09;
 
+	/*	PWMTC = 0;
+	PWMPR = 7;
+	PWMMR0 = 0x1E6;	// pwm rate
+	PWMMR2 = 0x00;	// pwm value
+	PWMLER = 0x05;
+	PWMPCR = (1<<10);
+*/
+
+	//VICVectAddr0 = (unsigned long)&(soundIRQ);
+	//VICVectCntl0 = VIC_SLOT_EN | INT_SRC_PWM;
+	VICIntSelect |= INT_PWM;
+	VICIntEnable = INT_PWM;
+
 }
 
 void PWM_set_frequency(unsigned long f)
 {
-	PWMMR0 = 15000000 / f;
+	if(f<5000) {
+		PWMPR = 7;
+		PWMMR0 = 1875000 / f;
+	} else {
+		PWMPR = 0;
+		PWMMR0 = 15000000 / f;
+	}
 	PWMLER |= 0x01;    //Latch Enable
 
 }
diff --git a/boop/interrupt/irq.c b/boop/interrupt/irq.c
index 9c8f965..331fa55 100644
--- a/boop/interrupt/irq.c
+++ b/boop/interrupt/irq.c
@@ -71,12 +71,12 @@ unsigned restoreIRQ(unsigned oldCPSR)
 // (where's the vector? in lpc2220_rom.ld ?)
 void __attribute__ ((section(".text.fastcode"))) FIQ_Routine (void)
 {
-	while ((PWMIR == 0x01) || (T1IR == 1)) 
+	//while ((PWMIR == 0x01))
 	{
 		if (PWMIR == 0x01)
 			soundIRQ();			// sound, backlight
-		if (T1IR == 1)
-			irIRQ();			// IR
+		//if (T1IR == 1)
+		//	irIRQ();			// IR
 	}
 }
 
diff --git a/boop/main.c b/boop/main.c
index e9651c8..00f568f 100644
--- a/boop/main.c
+++ b/boop/main.c
@@ -243,7 +243,7 @@ int main(void)
 	FIOSET0 |= (1<<12);
 	FIOCLR0 |= (1<<4);
 
-	setSpeed(SPEED_30);
+	setSpeed(SPEED_60);
 
 	lcd_init(0);
 	serial_init();
@@ -254,7 +254,7 @@ int main(void)
 	initKeys();
 
 	initSound();
-	startSoundIRQ();
+	//startSoundIRQ();
 
 	initIR();
 	startIrIRQ();