/[svn]/linuxsampler/trunk/src/common/RTMath.h
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revision 1861 by schoenebeck, Sun Oct 14 22:00:17 2007 UTC revision 1862 by persson, Wed Mar 11 19:03:37 2009 UTC
# Line 76  class RTMathBase { Line 76  class RTMathBase {
76          }          }
77    
78          /**          /**
79             * Slower version of CentsToFreqRatio, for big values.
80             *
81             * @param cents - pitch value in cents (+1200 cents means +1 octave)
82             * @returns  frequency ratio (e.g. +2.0 for +1 octave)
83             */
84            static double CentsToFreqRatioUnlimited(double Cents) {
85                int octaves = int(Cents / 1200);
86                double x = CentsToFreqRatio(Cents - octaves * 1200);
87                return  octaves < 0 ? x / (1 << -octaves) : x * (1 << octaves);
88            }
89    
90            /**
91           * Inverse function to CentsToFreqRatio(). This function is a bit           * Inverse function to CentsToFreqRatio(). This function is a bit
92           * slow, so it should not be called too frequently.           * slow, so it should not be called too frequently.
93           */           */
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