Note.hxx

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00001 /*
00002  * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
00003  *                         UNIVERSITAT POMPEU FABRA
00004  *
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  *
00020  */
00021 
00022 /* Note type definition */
00023 
00024 #ifndef _Note_
00025 #define _Note_
00026 
00027 #include "DynamicType.hxx"
00028 #include "DataTypes.hxx"
00029 #include "OSDefines.hxx"
00030 #include "Err.hxx"
00031 #include "ProcessingData.hxx"
00032 
00033 #include "MediaTime.hxx"
00034 #include "PitchNote.hxx"
00035 
00036 namespace CLAM {
00037 
00042         class Note: public ProcessingData
00043         {
00044         public:
00045                 DYNAMIC_TYPE_USING_INTERFACE (Note, 7, ProcessingData);
00046                 /* Pitch information (not by default) */
00047                 DYN_ATTRIBUTE (0, public, PitchNote, PitchNote);
00048                 /* Note Fundamental frequency (by default) */
00049                 DYN_ATTRIBUTE (1, public, TData, FundFreq); 
00050                 /* Note energy (by default) */
00051                 DYN_ATTRIBUTE (2, public, TData, Energy);
00052                 DYN_ATTRIBUTE (3, public, MediaTime, Time);
00053                 /* Intranote duration (not by default) */
00054                 DYN_ATTRIBUTE (4, public, MediaTime, Attack);
00055                 DYN_ATTRIBUTE (5, public, MediaTime, Sustain);
00056                 DYN_ATTRIBUTE (6, public, MediaTime, Release);
00057 
00060                 int GetNoteNumber()
00061                 {
00062                         return Round(69+log(GetFundFreq()/440)*17.31234);
00063                 }
00064                 int GetVelocity()
00065                 {
00066                 //this mapping is experimental and should be revisited
00067                         TData velocity=65*log10(GetEnergy())+65;
00068                         if(velocity<25) velocity=25;
00069                         return (int)velocity;//65;
00070                 }
00071         private:
00072                 void DefaultInit();     
00073         };
00074 
00075 }; // namespace CLAM
00076 
00077 
00078 #endif // _Note_
00079