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# C:/Musimathics_local/Musimat/include/Dynamics.h

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    00001 /* $Revision: 1.2 $ $Date: 2006/09/09 06:22:53 $ $Author: dgl $ $Name:  $ $Id: _dynamics_8h-source.html,v 1.2 2006/09/09 06:22:53 dgl Exp $ */
    00002 #ifndef DYNAMICS_H
    00003 #define DYNAMICS_H
    00004
    00005 // The Musimat Tutorial © 2006 Gareth Loy
    00006 // Derived from Chapter 9 and Appendix B of "Musimathics Vol. 1" © 2006 Gareth Loy
    00007 // and published exclusively by The MIT Press.
    00008 // This program is released WITHOUT ANY WARRANTY; without even the implied
    00009 // warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00010 // For information on usage and redistribution, and for a DISCLAIMER OF ALL
    00011 // WARRANTIES, see the file, "LICENSE.txt," in this distribution.
    00012 // "Musimathics" is available here:     http://mitpress.mit.edu/catalog/item/default.asp?ttype=2&tid=10916
    00013 // Gareth Loy's Musimathics website:    http://www.musimathics.com/
    00014 // The Musimat website:                 http://www.musimat.com/
    00015 // This program is released under the terms of the GNU General Public License
    00016 // available here:                      http://www.gnu.org/licenses/gpl.txt
    00017
    00018 #include <math.h>
    00019
    00022
    00027
    00032 template<class Type> inline Type dBCoefficient( Type x, Type ref = 1.0 ) { Return( pow(10.0, x / 20.0 ) / ref); }
    00033
    00034
    00039 template<class Type> inline Type dBSPL( Type x, Type ref = 1.0 ) { Return 20.0 * log10(x / ref); }
    00040
    00045 template<class Type> inline Type dBSIL( Type x, Type ref = 1.0 ) { Return 10.0 * log10(x / ref); }
    00047
    00048
    00053
    00054 Const Real
    00055         Fff = dBCoefficient(-10.0),
    00056         Ff = dBCoefficient(-18.0),
    00057         Forte = dBCoefficient(-24.0),
    00058         Mf = dBCoefficient(-32.0),
    00059         Mp = dBCoefficient(-40.0),
    00060         P = dBCoefficient(-48.0),
    00061         Pp = dBCoefficient(-56.0),
    00062         Ppp = dBCoefficient(-64.0)
    00063 ;
    00065
    00066 #endif // DYNAMICS_H