1 files changed, 0 insertions, 84 deletions
diff --git a/src/com/softsynth/math/AudioMath.java b/src/com/softsynth/math/AudioMath.java
deleted file mode 100644
index 6d5ab07..0000000
--- a/src/com/softsynth/math/AudioMath.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright 1998 Phil Burk, Mobileer Inc
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.softsynth.math;
-
-/**
- * Miscellaneous math functions useful in Audio
- *
- * @author (C) 1998 Phil Burk
- */
-public class AudioMath {
-    // use scalar to convert natural log to log_base_10
-    private final static double a2dScalar = 20.0 / Math.log(10.0);
-    public static final int CONCERT_A_PITCH = 69;
-    public static final double CONCERT_A_FREQUENCY = 440.0;
-    private static double mConcertAFrequency = CONCERT_A_FREQUENCY;
-
-    /**
-     * Convert amplitude to decibels. 1.0 is zero dB. 0.5 is -6.02 dB.
-     */
-    public static double amplitudeToDecibels(double amplitude) {
-        double db = Math.log(amplitude) * a2dScalar;
-        return db;
-    }
-
-    /**
-     * Convert decibels to amplitude. Zero dB is 1.0 and -6.02 dB is 0.5.
-     */
-    public static double decibelsToAmplitude(double decibels) {
-        double amp = Math.pow(10.0, decibels / 20.0);
-        return amp;
-    }
-
-    /**
-     * Calculate MIDI pitch based on frequency in Hertz. Middle C is 60.0.
-     */
-    public static double frequencyToPitch(double frequency) {
-        return CONCERT_A_PITCH + 12 * Math.log(frequency / mConcertAFrequency) / Math.log(2.0);
-    }
-
-    /**
-     * Calculate frequency in Hertz based on MIDI pitch. Middle C is 60.0. You can use fractional
-     * pitches so 60.5 would give you a pitch half way between C and C#.
-     */
-    public static double pitchToFrequency(double pitch) {
-        return mConcertAFrequency * Math.pow(2.0, ((pitch - CONCERT_A_PITCH) * (1.0 / 12.0)));
-    }
-
-    /**
-     * This can be used to globally adjust the tuning in JSyn from Concert A at 440.0 Hz to
-     * a slightly different frequency. Some orchestras use a higher frequency, eg. 441.0.
-     * This value will be used by pitchToFrequency() and frequencyToPitch().
-     *
-     * @param concertAFrequency
-     */
-    public static void setConcertAFrequency(double concertAFrequency) {
-        mConcertAFrequency = concertAFrequency;
-    }
-
-    public static double getConcertAFrequency() {
-        return mConcertAFrequency;
-    }
-
-    /** Convert a delta value in semitones to a frequency multiplier.
-     * @param semitones
-     * @return scaler For example 2.0 for an input of 12.0 semitones.
-     */
-    public static double semitonesToFrequencyScaler(double semitones) {
-        return Math.pow(2.0, semitones / 12.0);
-    }
-}