/*
* Created on Oct 10, 2004
*
* Copyright (c) 2005 Peter Johan Salomonsen (http://www.petersalomonsen.com)
*
* http://www.frinika.com
*
* This file is part of Frinika.
*
* Frinika is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Frinika is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Frinika; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.frinika.audio;
/**
* @author Peter Johan Salomonsen
*
*/
public final class Decibel {
static final float[] amplitudeRatio = new float[11000];
static
{
for(float x=-100;x<10;x+=0.01)
amplitudeRatio[(int)(x*100)+10000] = (float)Math.pow(10,x/20.0);
}
/* public static final float getPowerRatio(float dB)
{
return((float)Math.pow(10,dB/10.0));
}*/
public static final float getAmplitudeRatio(float dB)
{
return(amplitudeRatio[(int)(dB*100)+10000]);
}
public static void main(String[] args)
{
System.out.println( getAmplitudeRatio(-96));
}
}