Also der folgende Code läuft einwandfrei und begrüßt dich sogar! ... 
Die Ausgabe erfolgt über Pin 11, Pin 10 dient mir nur als Masse, weil ich gerade nur einen Speaker mit 2-Pin-Stecker zu Hand habe ...
PROGMEM byte snd[] ={128,129,129,129,129,128,125,125,128,128,129,131,130,
127,127,125,124,128,132,131,129,128,126,127,131,129,125,126,129,129,130,130,129,127,128,127,125,127,129,130,129,128,127,128,
129,128,127,127,129,129,129,126,124,125,128,130,132,132,129,128,127,123,121,124,128,132,135,134,129,124,122,122,126,132,133,
131,129,126,124,125,128,131,132,130,126,124,126,128,130,129,126,124,126,128,130,130,130,129,128,126,125,126,126,129,132,130,
128,126,123,124,130,133,132,129,126,125,126,127,127,127,127,130,133,132,127,123,122,125,130,132,132,132,132,129,126,123,124,
129,131,130,126,125,130,134,133,128,125,126,131,132,128,125,125,128,131,132,130,128,129,130,130,131,130,128,128,129,128,127,
127,128,128,131,128,125,125,128,129,129,127,122,121,122,122,125,126,125,127,128,124,122,124,125,129,130,122,119,122,126,130,
133,129,126,131,132,130,133,133,130,133,136,134,133,136,137,140,143,139,136,138,141,139,138,137,134,135,136,132,129,127,125,
124,123,121,120,121,119,113,109,107,109,113,110,105,103,107,111,114,113,109,111,127,141,141,136,125,119,122,128,128,128,131,
132,136,140,140,138,142,145,145,149,152,150,148,144,140,140,145,146,148,148,147,145,142,136,130,127,125,125,124,120,114,110,
105,102,99,94,94,97,97,97,97,106,126,143,147,139,126,115,114,118,121,123,126,129,134,139,137,132,129,130,132,132,131,
129,129,133,137,139,139,141,143,147,153,156,153,148,143,140,141,144,145,145,145,145,144,140,132,126,124,122,119,113,106,100,
95,91,88,89,91,91,92,98,116,145,164,159,136,114,104,107,115,117,117,120,132,144,148,143,133,126,127,130,129,127,127,
129,133,137,136,134,137,141,147,150,152,154,154,150,146,142,141,144,146,146,145,145,143,138,131,124,119,114,109,104,102,98,
92,86,82,82,84,87,97,127,160,169,158,137,114,106,110,109,105,108,117,131,149,153,145,139,136,134,131,125,118,118,128,
138,140,139,136,133,137,143,144,146,149,152,153,152,150,146,144,144,144,145,147,145,142,138,133,127,121,114,106,99,95,95,
98,92,87,86,83,84,90,113,151,170,163,143,126,118,120,115,101,95,105,121,140,149,145,141,147,155,152,135,115,106,112,
123,128,127,128,136,147,154,153,149,146,147,150,149,144,143,145,148,148,147,145,146,146,143,138,132,125,116,107,99,93,94,
97,94,89,88,87,87,89,88,111,155,171,161,146,130,124,131,120,97,88,98,113,133,141,136,146,166,172,159,138,115,108,
114,112,105,107,118,135,154,162,161,162,164,160,153,142,131,132,138,140,143,147,151,155,155,148,140,133,127,118,107,95,90,
93,95,91,87,86,88,90,87,83,108,151,161,156,148,139,142,149,133,107,97,97,104,115,115,111,129,155,169,169,159,144,
142,143,128,109,99,97,105,116,121,126,144,165,179,183,177,167,162,157,144,132,125,125,129,135,134,136,140,141,139,133,122,
113,106,96,88,81,72,67,67,70,70,87,130,156,160,164,163,163,173,162,131,111,102,93,92,89,79,93,122,145,159,166,
166,170,177,167,143,126,112,105,102,94,88,98,123,144,161,172,179,187,192,183,168,155,144,137,130,121,114,115,118,119,120,
119,117,118,118,113,105,97,85,74,68,62,61,89,120,130,137,150,158,175,183,165,146,140,128,117,105,86,77,92,108,118,
126,135,146,164,173,165,154,150,144,138,128,111,103,109,118,125,131,139,151,165,173,172,171,170,168,162,151,140,132,127,119,
112,106,103,102,102,99,97,98,96,90,84,80,77,77,102,127,129,131,142,146,162,170,155,140,139,133,125,118,102,92,103,
114,118,122,126,132,146,155,151,144,145,144,143,139,127,119,125,130,132,135,137,142,154,159,159,161,163,163,163,156,148,144,
139,130,123,116,108,104,101,94,90,88,86,80,78,77,78,81,103,126,127,130,142,148,161,170,158,145,145,140,131,123,110,
99,104,112,113,113,116,120,132,144,143,140,144,148,149,150,142,134,134,135,132,130,131,132,139,144,147,151,157,160,162,162,
158,154,151,144,135,127,120,112,105,98,92,88,88,84,79,76,75,72,76,102,122,122,127,139,144,162,174,162,152,152,148,
142,137,120,103,106,113,110,109,107,107,118,133,133,131,136,141,148,156,152,143,143,145,142,139,136,131,135,142,140,141,146,
149,152,156,154,151,152,149,142,136,128,120,115,109,101,96,94,90,86,82,79,77,75,85,107,112,111,123,133,142,161,162,
156,154,159,155,153,145,130,118,123,122,114,109,105,102,111,122,120,119,125,131,139,147,145,140,143,149,150,149,145,140,143,
150,150,145,143,142,145,148,146,139,138,139,139,136,131,122,118,117,113,107,102,96,91,88,84,78,74,84,103,103,104,117,
121,131,154,156,149,153,158,156,159,155,141,129,132,130,122,117,113,103,109,118,115,113,117,119,122,135,140,137,138,145,146,
150,154,150,147,153,154,150,150,147,140,141,145,139,135,137,134,131,133,134,132,120,114,111,104,98,87,73,67,62,57,76,
109,110,113,131,143,157,181,185,166,155,159,149,139,131,107,86,92,105,99,96,104,108,123,152,163,156,153,159,159,161,160,
138,116,115,119,116,117,119,120,132,156,170,172,176,177,177,177,172,153,135,127,118,109,99,88,79,77,81,79,78,78,74,
76,80,88,125,152,156,158,160,162,164,173,157,129,108,98,95,94,96,89,85,104,125,142,153,159,160,163,172,170,159,143,
128,117,112,112,107,101,103,109,121,136,149,154,159,165,171,173,172,167,158,151,146,139,132,124,116,109,103,97,92,87,83,
79,79,80,82,87,99,115,130,147,154,158,161,166,166,162,156,143,128,119,113,106,100,96,91,92,101,114,122,131,138,145,
153,162,166,162,155,147,139,131,125,116,104,97,95,96,102,110,117,124,135,148,159,167,172,171,167,164,161,153,144,136,126,
121,120,119,120,120,123,125,128,128,124,117,111,106,101,96,89,85,84,91,106,122,131,137,142,148,156,164,166,159,147,137,
127,123,120,113,102,94,94,99,109,121,129,132,136,144,152,159,162,157,146,136,129,122,118,112,105,97,95,100,107,118,129,
137,143,152,162,167,170,169,162,152,146,140,133,128,123,118,115,118,122,127,132,136,136,135,133,126,119,111,103,94,85,80,
79,83,94,110,124,135,145,151,156,163,168,167,160,149,135,122,113,109,103,98,96,95,99,108,121,132,143,150,154,155,157,
157,153,147,138,125,113,105,101,98,99,102,104,109,117,127,138,151,161,165,167,166,162,156,151,144,135,128,121,116,115,117,
120,124,130,134,136,141,144,143,141,136,127,117,106,95,84,78,75,76,82,96,113,128,143,155,160,165,167,167,164,158,148,
133,120,108,98,93,93,95,98,105,112,121,132,144,153,160,163,161,155,149,140,131,122,114,107,100,96,96,98,105,114,123,
132,142,149,155,159,162,162,161,157,149,139,132,124,118,117,117,119,121,125,129,134,139,142,144,145,142,137,131,124,116,107,
99,91,83,79,78,83,96,113,131,147,159,163,164,163,160,157,153,147,137,125,112,99,91,89,92,99,110,120,127,134,140,
146,151,157,160,159,154,144,131,118,109,103,100,101,104,106,110,113,119,127,137,147,155,160,160,155,149,142,135,132,129,126,
124,121,119,118,120,123,130,137,143,148,149,148,147,143,139,135,131,125,119,112,105,99,96,94,94,97,99,102,108,117,129,
142,153,161,163,161,154,145,136,129,123,118,115,111,108,104,103,104,109,118,128,138,147,151,152,149,145,140,136,133,129,125,
120,114,109,105,104,107,113,121,130,137,142,145,145,145,144,142,140,139,135,130,124,119,115,113,116,120,128,135,141,145,147,
147,146,145,144,143,141,139,134,130,125,120,117,115,113,113,112,113,112,112,112,112,112,112,114,118,123,131,138,144,147,147,
144,139,134,129,125,123,122,121,120,119,117,116,116,118,121,127,133,138,141,142,141,138,134,130,127,125,124,123,122,121,119,
118,117,118,121,126,131,136,140,141,141,139,137,134,131,128,127,126,124,123,121,120,120,121,125,130,137,143,148,150,149,147,
143,139,135,132,130,129,128,126,126,123,122,121,121,122,121,121,120,118,116,114,112,110,110,111,115,120,128,135,141,145,146,
145,141,137,132,127,125,123,121,120,119,117,116,115,116,119,124,130,136,141,143,144,142,138,134,129,125,123,121,120,119,119,
118,119,119,121,124,129,134,138,141,143,142,139,136,131,127,123,121,119,119,119,120,120,121,123,125,128,132,136,140,144,146,
147,147,144,141,137,132,129,126,124,124,124,125,127,129,131,132,132,133,132,130,128,124,120,116,112,109,106,105,105,106,110,
116,123,132,140,147,151,152,150,145,139,131,125,119,116,114,114,114,114,116,117,120,124,129,135,141,145,147,147,144,139,132,
126,121,116,114,113,114,116,119,122,125,127,130,133,136,139,142,142,142,139,134,129,124,119,116,115,115,117,120,124,127,130,
133,135,136,137,138,139,138,138,138,136,134,133,130,129,128,127,127,128,129,130,132,134,135,135,135,134,133,131,129,126,123,
119,115,112,110,108,108,108,109,111,114,119,125,133,140,146,150,150,148,143,136,127,121,115,112,112,113,116,118,121,123,126,
129,132,135,139,142,143,143,141,136,130,124,118,114,112,112,115,119,123,127};
#define PWM_Pin 11
#define GND_Pin 10
//---------------------------- setup ---------------------
void setup()
{
int pwm_freq=1;
TCCR2B = (TCCR2B & 0xF8) | pwm_freq;
pinMode(PWM_Pin, OUTPUT);
pinMode(GND_Pin, OUTPUT);
digitalWrite(GND_Pin, LOW);
}
//---------------------------- loop ----------------------
void loop()
{ byte b;
for (int i=0; i<sizeof(snd); i++)
{
b = pgm_read_byte(&snd[i]);
analogWrite(PWM_Pin,b);
delayMicroseconds(120);
}
delay(2000);
}