Source

midi / iambic.c

Diff from to
 	// square wave.
 	TCCR0A = (1 << COM0A0) | (1 << COM0A1) | 0x03;
 	TCCR0B = 0x03; // CLK/64
-	OCR0A = 0x02; // low volume
+	OCR0A = 0x80; // low volume
 
 	// Set mode to fast, inverted PWM