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import java.applet.Applet;
import java.awt.Graphics;
import java.awt.AWTEvent;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
public class SoundTemplate4k extends Applet implements Runnable {
private final static int SCREENWIDTH = 600; private final static int SCREENHEIGHT = 400;
private final static float RATE = 16000f; private final static float AMPLITUDE = 2048f;
private byte musicLoop[]; private Clip music;
private final static int maxNote = 730;
private final static int length = 1018;
private final static int tempo = 210;
private final static String notes = "[42,#OB+^*(Un6*xG]]#io[%$\\_H]*eG:+#E7i^ W}T7 A'T7 UTR^ o^3^*)(R^ L@%7*/(E7 6@[7 /tx%$DUC^ 0y ,-)(R^ b|l]*0EX[*kKS^ (K;+#L7\\7 L3s]#/(E7 ='a^ #Un6*R<<^ 8%$A[2^*)(R^ S}a^ #Un6*`#5^ 8%$Mxw\\ o;'_ o;'_ rS9^*4L/,-qWf*#?rb<\"E$U%$:cP^*P<<^ .YK_ Aq]^*^#5^ # _ /yD^ 5q]^*IEv^ 1yD^ ll@^*3;2^*%8~] F7i^ qX2N!T#OM!LrXq#*LhR&po{]*+8~] qKF7 QzN]#uVT%$'8~] 7:>] .YK_ Bq]^*rDB7*grZ7 o+q7 g_/&$,q]^*-w%_ ^>[] 7Pp^ <r37*Bj\"^#0@h^ =\"+^*DUC^ 6Z{]*`#5^ oxx<\"_mw\\ 44v\\*jF5,#OB+^*(Un6*xG]]#io[%$\\_H]*eG:+#E7i^ W}T7 A'T7 UTR^ o^3^*)(R^ L@%7*/(E7 6@[7 /tx%$DUC^ 0y ,-)(R^ b|l]*0EX[*kKS^ (K;+#L7\\7 L3s]#/(E7 ='a^ #Un6*R<<^ 8%$A[2^*)(R^ S}a^ #Un6*`#5^ 8%$Mxw\\ o;'_ o;'_ rS9^*4L/,-qWf*#?rb<\"E$U%$:cP^*P<<^ .YK_ Aq]^*^#5^ # _ /yD^ 5q]^*IEv^ 1yD^ ll@^*3;2^*%8~] F7i^ qX2N!T#OM!LrXq#*LhR&po{]*+8~] qKF7 QzN]#uVT%$'8~] 7:>] .YK_ Bq]^*rDB7*grZ7 o+q7 g_/&$,q]^*-w%_ ^>[] 7Pp^ <r37*Bj\"^#0@h^ =\"+^*DUC^ 6Z{]*`#5^ {x^M!tbw\\ 3hE, *HKi -w%_ *$J]*eG:+#E7i^ W}T7 A'T7 UTR^ >X3,#OB+^*(Un6*xG]]#io[%$\\_H]*F7i^ ,HK] L7\\7 L3s]#/(E7 ='a^ s:S\\ fWi^ r*'] kKS^ >An]*\\_H]*l`%7*/(E7 6@[7 /tx%$DUC^ ,xa^ 9M]]#qS:+#F7i^ =\"+^*DUC^ ,xa^ 8M]]#(a2,#]l@^*yl@^*3HK] |\" _ K;u,#LC`6*)1O]#`w^]*tKS^ )+e^*/w%_ vKS^ R?O^*xl@^*ji-^ I'=_ [?O^*xP&^ :Pp^ IG6^ (;2^*%EB7*bYzM!{GeL!*7|y&T2_+#Q}a^ :#`6*c2~] [TE7 p\"D^ O?O^*{*e^*!1-_ +SE] &#r7 v71^#grZ7 btK] I'=_ ]?O^*1\"+^*FUC^ :I(] WZ!&$)(R^ S}a^ 3=eL!Q}a^ $gA<,Ria<\"1RP\\*g3ln7eG:+#E7i^ W}T7 A'T7 UTR^ >X3,#OB+^*(Un6*xG]]#io[%$\\_H]*F7i^ ,HK] L7\\7 L3s]#/(E7 ='a^ s:S\\ fWi^ r*'] kKS^ >An]*\\_H]*l`%7*/(E7 6@[7 /tx%$DUC^ ,xa^ 9M]]#qS:+#F7i^ =\"+^*DUC^ ,xa^ 8M]]#(a2,#]l@^*yl@^*3HK] |\" _ K;u,#LC`6*)1O]#`w^]*tKS^ )+e^*/w%_ vKS^ R?O^*xl@^*ji-^ I'=_ [?O^*xP&^ :Pp^ IG6^ (;2^*%EB7*bYzM!{GeL!*7|y&T2_+#Q}a^ :#`6*c2~] [TE7 p\"D^ O?O^*{*e^*!1-_ +SE] &#r7 v71^#grZ7 btK] I'=_ ]?O^*1\"+^*FUC^ :I(] WZ!&$)(R^ S}a^ 3=eL!Q}a^ zq'M+^iGM!BZl!*SwR, )d;_ Pb|[*";
private final static int TRIANGLEHARMONICS = 7; // Number of harmonics
private final static double TRIANGLEAMPLITUDE = 0.5; // Triangle Volume
private final static double SINAMPLITUDE = 0.2; // Sinewave Volume
private final static int ATTACK = 1000; // Note attack
private final static int DECAY = 1000; // Note decay
@Override
public void start() {
enableEvents(AWTEvent.KEY_EVENT_MASK);
new Thread(this).start();
}
public void run() {
//
// Initialise and start background music
//
// Create array of music frequencies
int i, j, k;
double[] freq = new double[100];
double f = 16.351562; // Frequency of C0 (C4 is middle C)
for (i=0; i<7*12; i++) {
freq[i] = f;
f *= 1.0594630944; // Evenly tempered scale (12th root 2)
}
// Create an array of bytes to store the background music
musicLoop = new byte[2*(int)( length*15f/tempo*RATE )];
// Read each note and render it into the loop
int semiQuaver = 0; // Start time for next note
int byte0, byte1, twoNotes=0;
for (i=0; i<maxNote; i++) {
if ((i & 1)==0) {
// Decode 5 chars to 1 int
twoNotes = 0;
for (j=4;j>=0;j--)
twoNotes = twoNotes*95+(int)notes.charAt(5*(i>>1)+j)-0x20;
}
byte0 = twoNotes & 0xff; // Frequency
byte1 = twoNotes>>8 & 0xff; // Delay & Duration
twoNotes=twoNotes>>16;
double frequency = freq[byte0 & 0x7f];
if (byte0 >127) // If bit7 is set, there is a delay before note
semiQuaver += (byte1>>4 & 0x0f) + 1; // Note start time
int duration = (byte1 & 0x0f) + 1; // Note duration
// Calculate start and stop times in terms of samples
int start = (int)( (semiQuaver)*15f/tempo*RATE );
int stop = (int)( (semiQuaver+duration)*15f/tempo*RATE );
// Calculate each sample and render it into the music loop
double sample;
for (j=start; j<stop; j++) {
double time = (j-start)/RATE; // Time (seconds)
// Triangle fundamental + sinusoidal 4th and 6th harmonics
sample = 0.0;
for (k=1; k<=TRIANGLEHARMONICS; k+=2) {
f = frequency*k;
if (f<RATE/2.0) // Nyquist frequency
sample += Math.sin(Math.PI*f*time*2.0)/(k*k);
}
sample = sample*TRIANGLEAMPLITUDE
+ (Math.sin(Math.PI*frequency*time*8.0)
+ Math.sin(Math.PI*frequency*time*12.0))
* SINAMPLITUDE;
// Apply attack and decay to avoid clicks
if (j-start<ATTACK) sample *= (j-start)/(float)ATTACK;
if (stop-j<DECAY) sample *= (stop-j)/(float)DECAY;
// Add the 16 bit sample to loop
int data = (musicLoop[2*j]<<8)+(musicLoop[2*j+1] & 0xff);
data += (int)(AMPLITUDE*sample);
musicLoop[2*j+1] = (byte)(data & 0xff);
musicLoop[2*j] = (byte)((data>>8) & 0xff);
}
}
try {
// Initialise Sound System
AudioFormat audioFormat = new AudioFormat(RATE, 16, 1, true, true);
DataLine.Info info = new DataLine.Info(Clip.class, audioFormat);
music = (Clip)AudioSystem.getLine(info);
music.open(audioFormat, musicLoop, 0, musicLoop.length);
music.loop(Clip.LOOP_CONTINUOUSLY);
} catch (Exception e) {}
//
// End of Music Section
//
BufferedImage screen = new BufferedImage(
SCREENWIDTH, SCREENHEIGHT, BufferedImage.TYPE_INT_RGB);
while(!isActive()) Thread.yield();
Graphics g = getGraphics();
requestFocus();
do {
if (g!=null) {
g.drawImage(screen, 0,0,null);
}
Thread.yield();
} while (isActive());
music.stop(); // Required to stop music when applet is not in foreground
}
/** Process Key Event */
@Override
protected void processKeyEvent(KeyEvent e) {
// Key Handler ...
}
}
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