import java.util.Random;

/* Test program for ? generere en ren sinus-tone p? 600 Hz */

class SimpleFilter
{
    public static void main(String [] args) throws Exception
    {
        MatInf1100Sound lyd;
        int i, n, c;
        short data [];
        double sampleRate;
        double t, length;
        short a[];
        
        sampleRate = 8000;
        length = 2; /* i sekunder */
        n = (int)(length*sampleRate); /* Totalt antall sampler */
        data = new short[n]; /* Til lagring av sampler */
        c = (int)(Math.pow(2,15) - 1); /* Samplene b?r variere i hele spekteret av shorts
                                          for at lyden skal bli kraftig. */
        for (i=0; i<n; i++)
        	{
        		t = (double)(i) / sampleRate;
        		data[i] = (short)(c*Math.sin(2*Math.PI*600*t)); /* Sampler sin */
        	}
        	
        lyd = new MatInf1100Sound(data, sampleRate); /* Lager lyd objekt */
        lyd.play();  /* Spiller av lyden */
        
        System.exit(0);
    }
}