/*
 * Created on Apr 28, 2004
 *
 */
package jmsltestsuite;

import com.softsynth.jmsl.util.TuningET;
import com.softsynth.jmsl.util.TuningTable;

/**
 * Compare two definitions of 12tet tuning: TuningTable versus TuningET
 * 
 * @author Nick Didkovsky, email: didkovn@mail.rockefeller.edu, (c) 2004 Nick Didkovsky, all rights reserved. 
 *
 */
public class TuningTest {

	TuningTable tuningTable;
	TuningET tuningET = new TuningET();

	public TuningTest() {
		double[] table = new double[12];
		for (int i = 0; i < 12; i++) {
			table[i] = tuningET.getFrequency(TuningET.MIDDLE_C_PITCH + i);
		}
		tuningTable = new TuningTable(table, TuningET.MIDDLE_C_PITCH); // freq table and refernce pitch
	}

	void setStretch(int cents) {
		tuningTable.setOctaveStretchCents(cents);
		tuningET.setOctaveStretchCents(cents);
	}

	public void compare() {
		for (int i = 0; i < 48; i++) {
			double pitch = TuningET.MIDDLE_C_PITCH - 24 + i;
			double freq1 = tuningET.getFrequency(pitch);
			double freq2 = tuningTable.getFrequency(pitch);
			System.out.println(pitch + ", " + freq1 + ", " + freq2);
			if (freq1 != freq2 && Math.abs(freq1 - freq2) > 0.00001) {
				System.out.println("DIFFERENCE! " + freq1 + ", " + freq2 + ", diff=" + (freq1 - freq2));
			}
		}
	}
	public static void main(String args[]) {
		TuningTest tuningTest = new TuningTest();
		//	tuningTest.compare();
		tuningTest.setStretch(1);
		tuningTest.compare();

	}

}