/* * TVolumeUtils.java * * This file is part of Tritonus: http://www.tritonus.org/ */ /* * Copyright (c) 1999 by Matthias Pfisterer * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Library General Public License as published * by the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* |<--- this code is formatted to fit into 80 columns --->| */ package org.tritonus.share.sampled; public class TVolumeUtils { private static final double FACTOR1 = 20.0 / Math.log(10.0); private static final double FACTOR2 = 1 / 20.0; public static double lin2log(double dLinear) { return FACTOR1 * Math.log(dLinear); } public static double log2lin(double dLogarithmic) { return Math.pow(10.0, dLogarithmic * FACTOR2); } } /*** TVolumeUtils.java ***/