#include <sys/types.h>
#include <sys/uio.h>
#include <stdio.h>
#include <unistd.h>
#include <stdint.h>
#include <stdlib.h>

int main (void) {
	size_t r;
	uint8_t buf[16];
	uint32_t sleft = 44100;
	uint8_t bit;
	
	while (read (0, buf, 1) > 0) {
		if ((--sleft) == 0) {
			bit = rand() & 7;
			buf[0] ^= (1 << bit);
			sleft = 44100 + (rand() % 4410);
		}
		write (1, buf, 1);
	}
}